Skip to main content

Utility

  • Gear Store
  • iE2 Portal
  • Find a Distributor
  • Technical Publications
    • Contact Us
    • Knowledge Base
    • Technical Publications
    • FAQs
    • Training Courses
    • Newsletter Signup
  • Owner Registration
    • News
    • Events
    • Press

User account menu

  • Log in
Home

Main navigation

    • Services
      • Rebuild Engines
      • Overhauled Engines
      • Product Support Network
      • Lycoming Loyalty Program
      • Advanced Technology
    • Engines
      • iE2 Engine
      • Thunderbolt Engine
      • Thunderbolt Engine Builder
      • Engines In-Stock
      • Engine Finder
      • Engine Serial Number Search
      • Technical Publications
    • Genuine Parts
      • Lycoming EIS
      • Pistons
      • Tappets
      • Crankshafts
      • Cylinder Kits
    • History
      two men working on engine
      History
    • Factory
      engines factory production line
      Factory
    • Distinctions
      plane in the sky
      Distinctions
    • Tours
      three men looking at the engine
      Tours
    • People
      factory workers
      People
Search

Main navigation

    • Services
      • Rebuild Engines
      • Overhauled Engines
      • Product Support Network
      • Lycoming Loyalty Program
      • Advanced Technology
    • Engines
      • iE2 Engine
      • Thunderbolt Engine
      • Thunderbolt Engine Builder
      • Engines In-Stock
      • Engine Finder
      • Engine Serial Number Search
      • Technical Publications
    • Genuine Parts
      • Lycoming EIS
      • Pistons
      • Tappets
      • Crankshafts
      • Cylinder Kits
    • History
      two men working on engine
      History
    • Factory
      engines factory production line
      Factory
    • Distinctions
      plane in the sky
      Distinctions
    • Tours
      three men looking at the engine
      Tours
    • People
      factory workers
      People

Utility

  • Gear Store
  • iE2 Portal
  • Find a Distributor
  • Technical Publications
    • Contact Us
    • Knowledge Base
    • Technical Publications
    • FAQs
    • Training Courses
    • Newsletter Signup
  • Owner Registration
    • News
    • Events
    • Press

User account menu

  • Log in

Footer

  • Careers
  • Lycoming Gear Store
  • Warranty

Follow Us

  • Youtube
  • Instagram
  • Twitter
  • Facebook
LYCOMING ENGINES
652 Oliver Street
Williamsport, PA 17701
1-800-258-3279

Technical Publications

Utility

  • Contact Us
  • Knowledge Base
  • Technical Publications
  • FAQs
  • Training Courses
  • Newsletter Signup
Sing up to receive an email notification when Lycoming publishes a technical publication on our website.
Service Instruction No. 1472 | 03.02.23
Service Instruction No. 1472

Removal of preservative oil from engine

Service Instructions | 03.01.23
SI 1577 Questionnaire

Service Instructions | 02.10.23
Service Instruction No. 1577A

INTAKE VALVE IN-SERVICE DATA

Service Instructions | 02.10.23
Service Instruction No. 1324D

CRANKSHAFT OIL SEALS

Service Bulletins | 02.10.23
Service Bulletin No. 649

INSTALLATION OF CORRECT ELECTRONIC IGNITION SYSTEM (EIS)

Service Instructions | 02.10.23
Service Instruction No. 1443S

APPROVED SLICK MAGNETOS AND LYCOMING ELECTRONIC IGNITION SYSTEM (EIS) ON LYCOMING ENGINES

Service Bulletins | 02.10.23
Service Bulletin No. 628A

REPRINT OF HARTZELL ENGINE TECHNOLOGIES’ (HET) ALERT SERVICE BULLETIN (ASB) 076

Service Bulletins | 02.10.23
Service Bulletin No. 651

INSPECTION FOR ROTATOR CAPS ON INTAKE VALVES

Reference Documents | 08.22.22
Special Service Publication No. SSP-122

Field Service Tool User Manual & Troubleshooting Guide - TEO-540 Series Engine Models

Service Instructions | 05.20.22
Service Instruction No. 1583

Front Expansion Plug Replacement

Service Bulletins | 04.22.22
Service Bulletin No. 646A

T-Bolt Clamp Inspection

Service Instructions | 04.08.22
Service Instruction No. 1533E

Approved Rotary Vane Fuel Pumps

Service Bulletins | 04.03.22
Service Bulletin No. 648B

Wastegate Solenoid Valve Inspection and Cleaning

Service Letters | 03.02.22
Service Letter No. L289

Valve Spring Part Numbers

Reference Documents | 02.15.22
Special Service Publication No. SSP-112-13

INDEX OF SERVICE BULLETINS, SERVICE INSTRUCTIONS AND SERVICE LETTERS

Service Instructions | 02.03.22
Service Instruction No. 1587

Reprint of AVStar Service Information Letter No. AFS-SIL-03

Service Instructions | 12.21.21
Service Instruction No. 1586

Oil Filter Base Bypass Spring Replacement

Service Letters | 12.17.21
Service Letter No. L288

Alternate Bolt Locking of Wastegate Solenoid Valve

Service Bulletins | 12.15.21
Service Bulletin No. 647

Incorrect Markings on Service Tool# ST-310

Service Instructions | 11.22.21
Service Instruction No. 1582 A

Fuel Injector Replacement

Service Instructions | 11.22.21
Service Instruction No. 1573 E

Lycoming TEO-540 Engine Series Approved Engine Configurations

Installation & Operator Manuals | 11.19.21
TEO-540-C1A Engine Installation & Operations Manual

DOCUMENT PART NO. IOM-TEO-540-C1A REV 4

Parts Catalog | 11.19.21
TEO-540-C1A Illustrated Parts Catalog Rev 4

DOCUMENT PART NO. PC-TEO-540-C1A REV 4

Maintenance Manuals | 11.19.21
TEO-540-C1A Engine Maintenance Manual Rev 4

DOCUMENT PART NO. MM-TEO-540-C1A REV 4

Service Instructions | 11.19.21
Service Instruction No. 1585

Oil Cooler Bypass Valve Assembly Replacement

Service Instructions | 11.19.21
Service Instruction No. 1532 M

Approved Fuel Injectors, Fuel Manifold Assemblies, and Fuel Nozzle Assemblies for Lycoming Engines

Reference Documents | 11.07.21
Special Service Publication No. SSP-112-12

INDEX OF SERVICE BULLETINS, SERVICE INSTRUCTIONS AND SERVICE LETTERS

Service Letters | 10.06.21
Service Letter No. L114BJ

Reciprocating Engine and Accessory Maintenance Publications

Service Bulletins | 09.24.21
Service Bulletin No. 645

Small End Connecting Rod Bushing Inspection

Service Bulletins | 09.16.21
Service Bulletin No. 643

Crankcase Nut Safety Wire Inspection

Service Letters | 08.27.21
Service Letter No. L285

Change in cylinder configuration for O-235-C, -E, and -H Series engines

Service Instructions | 08.27.21
Service Instruction No. 1037 Y

Approved Pistons, Rings, Cylinders, and Gasket Set Application for Use on Lycoming Aircraft Engines

Service Letters | 08.17.21
Service Letter No. L287

Increased Fuel Economy and Improved Manifold Pressure Stability

Service Instructions | 07.21.21
Service Instruction No. 1280D

Rotator Type Intake Valves

Service Bulletins | 06.17.21
Service Bulletin No. 642A

Incorrect Piston and Ring Combination

Reference Documents | 05.04.21
SPECIAL SERVICE PUBLICATION NO. 875

Removal and Installation Labor Allowance Guidebook

Service Instructions | 04.21.21
Service Instruction No. 1569 B

Installation, Operation, and Maintenance of Lycoming Electronic Ignition System (EIS)

Service Letters | 03.17.21
Service Letter No. L284

Blemish on Cylinder Barrel

Service Letters | 02.23.21
Service Letter No. L283

Alternate Ignition System

Maintenance Manuals | 02.23.21
YO-233-B2A Maintenance Manual

DOCUMENT PART NO. MM-YO-233

Service Letters | 12.13.20
Service Letter No. L282

Australian Fuel Testing

Service Instructions | 11.19.20
Service Instruction No. 1579

Exhaust System Replacement Components

Service Instructions | 11.09.20
Service Instruction No. 1577

Intake Valve In-Service Data

Service Instructions | 08.06.20
Service Instruction No. 1316A

Repair of Oil Cooler By-Pass Valve Seat

Service Instructions | 07.30.20
Service Instruction No. 1014N

Lubricating Oil Recommendations

Reference Documents | 04.30.20
Special Service Publication No. SSP-110-2

CERTIFICATED ENGINE LIST

Service Instructions | 04.28.20
Service Instruction No 1037-W

APPROVED PISTONS, RINGS, AND CYLINDERS FOR USE ON LYCOMING AIRCRAFT ENGINESS

Service Instructions | 04.23.20
Service Instruction No. 1009 BE

TIME BETWEEN OVERHAUL (TBO) SCHEDULES

Parts Catalog | 04.21.20
IO-390-D Series Engine Illustrated Parts Catalog

DOCUMENT PART NO. PC-IO-390-D

Service Instructions | 04.21.20
Service Instruction No. 1060 U

PUSH ROD IDENTIFICATION

Service Instructions | 04.15.20
Service Instruction No. 1443 R

APPROVED SLICK MAGNETOS ON LYCOMING ENGINES

Service Instructions | 04.15.20
Service Instruction No. 1154 W

FAA-APPROVED STARTERS AND ALTERNATORS

Reference Documents | 04.12.20
Special Service Publication No. SSP-1776-5

SERVICE TABLE OF LIMITS AND TORQUE VALUE RECOMMENDATIONS

Service Instructions | 04.08.20
Service Instruction No. 1098 Q

PROPELLER FLANGE BUSHING LOCATION

Service Instructions | 04.08.20
Service Instruction No. 1012 L

COUNTERWEIGHTS AND ROLLERS ON ENGINE MODELS

Service Instructions | 04.08.20
Service Instruction No. 1042 AH

APPROVED SPARK PLUGS

Service Bulletins | 04.08.20
Service Bulletin No. 369 S

ENGINE INSPECTION AFTER OVERSPEED

Service Instructions | 04.07.20
Service Instruction No. 1070 AB

SPECIFIED FUELS FOR SPARK-IGNITED GASOLINE AIRCRAFT ENGINE MODELS

Service Instructions | 03.12.20
Service Instruction No. 1575

New Connecting Rod Bushing

Reference Documents | 02.29.20
IO-390-D Series Engine Maintenance Manual (Principal Manual)

PART NO. MM-IO-390-D SERIES

Installation & Operator Manuals | 02.29.20
IO-390-D Engine Installation and Operation Manual

PART NO. IOM-IO-390-D SERIES

Service Bulletins | 01.17.20
Service Bulletin No. 639

Inspection of Rocker Arm, Part Number LW-15014

Service Letters | 12.17.19
Service Letter No. 277

Hartzell Engine Technologies and Lycoming Engines Alternator Distribution Agreement

Service Letters | 10.10.19
Service Letter No. 279

Lycoming model designation for fuel injectors

Service Letters | 07.13.19
Service Letter No. 278

Lycoming Engines' Product Support Hours

Service Instructions | 05.15.19
Service Instruction No. 1279 D

Oil Sump Baffle Replacement

Service Instructions | 03.22.19
Service Instruction No. 1415 A

New Turbocharger Mounting Hardware

Service Bulletins | 03.14.19
Service Bulletin No. 637

Reprint of Slick/Champion Aerospace Service Bulletin SB1-19

Service Bulletins | 03.14.19
Service Bulletin No. 622A

Reprint of Slick/Champion Aerospace Service Bulletin SB1-15

Service Instructions | 01.08.19
Service Instruction No. 1011N

Tappets and Lifters

Service Instructions | 01.08.19
Service Instruction No. 1498 B

Recommended Engine Procedures for Purge of Vapor During Ground Operations

Service Bulletins | 10.10.18
Service Bulletin No. 634

Cylinder and Head Assembly Serviceable Life

Maintenance Manuals | 09.30.18
TEO-540-A1A Engine Maintenance Manual

Document Part No. MM-TEO-540-A1A

Installation & Operator Manuals | 09.30.18
TEO-540-A1A Engine Installation & Operations Manual

DOCUMENT PART NO. IOM-TEO-540-A1A

Service Instructions | 08.24.18
Service Instruction No. 1571

Lockplate installation for Induction Housing on TIO-540-AJ1A and IO-540-AC1A5

Service Letters | 08.24.18
Service Letter No. 247 J

Shelf Life Requirements

Service Bulletins | 08.24.18
Service Bulletin No. 301 B

Maintenance Procedures and Service Limitations for Valves

Service Instructions | 08.02.18
Service Instruction No. 1572

Plug Replacement of Vapor Return Fitting on Piper installation of IO-360- B4A

Service Instructions | 08.02.18
Service Instruction No. 1570 A

Alternate Oil Sump Fitting Configuration for Aerobatic Inverted Oil System

Service Bulletins | 05.16.18
Service Bulletin No. 627 E

Exhaust System Inspection

Service Letters | 05.16.18
Service Letter No. 275 A

Warranty Procedure for Exhaust System Replacement Referenced in the most current revision of SB627

Parts Catalog | 04.30.18
HIO-390-A1A Illustrated Parts Catalog

DOCUMENT PART NO. PC-HIO-390-A1A

Parts Catalog | 04.24.18
AEIO-540-L1B5 Parts Catalog

Document Part No. PC-615-9

Service Letters | 04.15.18
Service Letter No. 253 C

Warranty Repair of AVStar Fuel Systems, Inc. Fuel Control Products

Parts Catalog | 04.12.18
AEIO-540-L1B5D Parts Catalog

Document Part No. PC-615-7

Service Bulletins | 02.26.18
Supplement No. 7 to Service Bulletin No. 342 G

FUEL LINE (STAINLESS STEEL TUBE ASSY.) AND SUPPORT CLAMP INSPECTION AND INSTALLATION SUPPLEMENT NO. 7

Service Bulletins | 02.09.18
Service Bulletin No. 553

Crankshaft Inspection for Lycoming Six Cylinder Turbocharged Engines

Service Bulletins | 02.09.18
Service Bulletin No. 549

Engine/Crankshaft Inspection

Parts Catalog | 02.09.18
IO-360-B1G6 Parts Catalog

Document Part No. PC-306-13

Parts Catalog | 02.09.18
O-360-C4F & -C4P Parts Catalog

Document Part No. PC-306-8

Service Instructions | 02.09.18
Service Instruction No. 1241 C

Pre-Oiling Engine Prior to Initial Start

Service Instructions | 02.09.18
Service Instruction No. 1094 D 

Fuel Mixture Leaning Procedures

Parts Catalog | 02.09.18
O-540 (WFC) Parts Catalog

Document Part No. PC-515

Service Bulletins | 02.09.18
Service Bulletin No. 482

Crankshaft Flange Area Cracking

Service Instructions | 02.09.18
Service Instruction No. 1437

Engine Timing Marks

Parts Catalog | 02.09.18
O-235-P2A Parts Catalog

Document Part No. PC-302-1

Parts Catalog | 02.09.18
O-360-A Parts Catalog

Document Part No. PC-306-1

Installation & Operator Manuals | 02.09.18
O-340 Operator's Manual

Document Part No. 60297-3

Service Bulletins | 02.09.18
Service Bulletin No. 183 A

Magneto Timing Discrepancies

Service Instructions | 02.09.18
Service Instruction No. 1193 A

Inspection in Event of Valve Failure

Service Instructions | 02.04.18
Service Instruction No. 1514 D

Roller Tappets Part Information Update

Service Bulletins | 12.19.17
Service Bulletin No. 626 A

AVStar Flow Divider (Lycoming Fuel Manifold) Inspection

Service Bulletins | 12.19.17
Service Bulletin No. 633

Oil Level Gage (Dipstick) Replacement

Service Letters | 11.21.17
Service Letter No. 272 A

Release of New Silicone Rocker Cover Gaskets

Maintenance Manuals | 09.30.17
HIO-390-A1A Maintenance Manual

Document Part No. MM-HIO-390-A1A

Installation & Operator Manuals | 09.30.17
HIO-390-A1A Installation & Operations Manual

DOCUMENT PART NO. IOM-HIO-A1A

Installation & Operator Manuals | 08.31.17
LIO-360-B1G6 Installation and Operation Manual

Document Part No. IOM-LIO-360-B1G6

Maintenance Manuals | 08.31.17
LIO-360-B1G6 Maintenance Manual

Document Part No. MM-LIO-360-B1G6

Service Bulletins | 08.28.17
Service Bulletin No. 628

Reprint of Hartzell Engine Technologies' Service Bulletin ASB 069

Service Bulletins | 08.22.17
Service Bulletin No. 245 D

Dynamic Counterweight System Detuning

Service Bulletins | 08.21.17
Service Bulletin No. 554

Crankshaft Gear Retaining Bolt Replacement

Service Bulletins | 08.21.17
Supplement No. 1 to Service Bulletin No. 552

Crankshaft Replacement in Lycoming TIO and LTIO-540 Engines Rated at 300 Horsepower and Higher

Service Instructions | 08.21.17
Service Instruction No. 1505

Cold Weather Starting

Service Bulletins | 08.21.17
Service Bulletin No. 529 B

Reprint of Crane/Lear Romec Service Bulletin No. 101SB020, Rev. 3

Service Letters | 08.21.17
Service Letter No. 180 B

Engine Preservation for Active and Stored Aircraft

Service Bulletins | 08.21.17
Service Bulletin No. 545 A

Oil Filler Tube Inspection-Replacement Kit Installation Modification

Service Instructions | 08.21.17
Service Instruction No. 1504

Cylinder Assembly Replacement on O-235 Engines Operated Under DGAC Authority

Service Letters | 08.21.17
Service Letter No. 197 A

Recommendations to Avoid Valve Sticking

Service Instructions | 08.21.17
Service Instruction No. 1500

Counterweight Roller Change for Robinson Helicopter

Service Instructions | 08.21.17
Service Instruction No. 1503

Accessory Drive Gear and Shaft Dowel Replacement

Service Instructions | 08.21.17
Service Instruction No. 1502 A

Installation of Inverted Flow Divider

Service Instructions | 08.21.17
Service Instruction No. 1304 J

Engine Nameplate Replacement

Service Instructions | 08.21.17
Service Instruction No. 1191 A

Cylinder Compression

Service Bulletins | 08.21.17
Service Bulletin No. 505 B

Inspection of Crankshaft I.D. for Corrosion

Service Instructions | 08.21.17
Service Instruction No. 1187 J

Turbocharger Density Controller Adjustment

Service Letters | 08.21.17
Service Letter No. 185 B

The Use of Higher Octane Aviation Fuel, 100LL Blue or 100 Green, for Engines Rated for 80/87 Octane Fuel

Service Letters | 08.21.17
Service Letter No. 192 B

Spark Plug Fouling

Service Instructions | 08.21.17
Service Instruction No. 1435

Conversion from Constant Speed to Fixed Pitch Propeller and Vice Versa; Propeller Governor Oil Line Nut and Elbow

Service Instructions | 08.21.17
Service Instruction No. 1341

Oil Pump Idler Shaft Lubrication

Service Instructions | 08.21.17
Service Instruction No. 1047 B

Inspection and Reconditioning Procedures for Nitride Hardened Steel Cylinders

Service Letters | 08.21.17
Service Letter No. 199

Recommendations Regarding Use of Fuel

Service Letters | 08.21.17
Service Letter No. 171

General Aspects of Spectrometric Oil Analysis

Service Bulletins | 08.15.17
Service Bulletin No. 524

Replacement of Oil Pump Impellers Sintered Iron and Aluminum

Service Bulletins | 08.15.17
Service Bulletin No. 547

Connecting Rod Bearing Replacement on TIO-540-AE2A Model Engines

Service Instructions | 08.04.17
Supplement No. 2 to Service Instruction No. 1029 D

Service Instructions | 08.04.17
Supplement No. 1 to Service Instruction No. 1029 D

Service Instructions | 08.04.17
Service Instruction No. 1029 D

Tightening Procedures for Crankcase Thru-Studs and Bolts

Service Bulletins | 08.03.17
Service Bulletin No. 632 B

Identification of Connecting Rods with Non-Conforming Small End Bushings

Service Instructions | 07.19.17
Service Instruction No. 1285 F

Non-Destructive Testing of Lycoming Engine Parts

Parts Catalog | 06.30.17
IO-360-P1A Parts Catalog

Document Part No. PC-IO-360-P1A

Parts Catalog | 06.30.17
LIO-360-B1G6

Document Part No. PC-LIO-360-B1G6

Service Bulletins | 06.12.17
Service Bulletin No. 630 A

Connecting Rod Bushing Inspection After Cylinder Removal

Service Bulletins | 05.24.17
Service Bulletin No. 401 A

Recommended Guidance After a Lightning Strike

Service Bulletins | 05.24.17
Service Bulletin No. 480 F

Oil Servicing, Metallic Solids Identification After Oil Servicing, and Associated Corrective Action

Service Bulletins | 05.08.17
Service Bulletin No. 552

Crankshaft Replacement in Lycoming TIO and LTIO-540 Engines Rated at 300 Horsepower and Higher

Service Bulletins | 05.08.17
Supplement No. 1 to Service Bulletin No. 549

Engine/Crankshaft Inspection

Service Bulletins | 05.08.17
Supplement No. 1 to Service Bulletin No. 524

Replacement of Oil Pump Impellers Sintered Iron and Aluminum

Service Instructions | 05.08.17
Service Instruction No. 1425 A

Suggested Maintenance Procedures to Reduce the Possibility of Valve Sticking

Parts Catalog | 05.08.17
O-235 Parts Catalog

Document Part No. PC-302

Parts Catalog | 05.08.17
HO-360-C1A Parts Catalog

Document Part No. PC-306-10

Parts Catalog | 05.08.17
O & LO-360 (76 Series) Parts Catalog

Document Part No. PC-123

Parts Catalog | 05.08.17
O-290-D Parts Catalog

Document Part No. PC-102-1

O-340 Parts Catalog | 05.08.17
O-340 Parts Catalog

Document Part No. PC-105

Parts Catalog | 05.08.17
O-360-A4P Parts Catalog

Document Part No. PC-306-9

Parts Catalog | 05.08.17
O-360-J2A Parts Catalog

Document Part No. PC-306-11

Parts Catalog | 05.08.17
O, IO, HO & HIO-360 Parts Catalog

Document Part No. PC-106

Parts Catalog | 05.08.17
VO & TVO-435 (Helicopter) Parts Catalog

Document Part No. PC-110

Parts Catalog | 05.08.17
GO-480 Parts Catalog

Document Part No. PC-111

Parts Catalog | 05.08.17
O, IO & LIO-320 Parts Catalog

Document Part No. PC-103

Parts Catalog | 05.08.17
O-540-A Parts Catalog

Document Part No. PC-115-1

Installation & Operator Manuals | 05.08.17
VO-435 & TVO-435 Operator's Manual

Document Part No. 60297-8

Installation & Operator Manuals | 05.08.17
TIGO-541-E1A Operator's Manual

Document Part No. SSP-1570

Installation & Operator Manuals | 05.08.17
VO-360 & IVO-360 (Helicopter) Operator's Manual

Document Part No. 60297-311

Parts Catalog | 05.08.17
TIO & LTIO-540-V2AD Parts Catalog

Document Part No. PC-315-2

Parts Catalog | 05.08.17
IO-540-W Parts Catalog

Document Part No. PC-615-4

Parts Catalog | 05.08.17
IO-720 Parts Catalog

Document Part No. PC-119

Parts Catalog | 05.08.17
IO-720-D1C Parts Catalog

Document Part No. PC-119-1

Parts Catalog | 05.08.17
IO & AIO-360-A, -B Parts Catalog

Document Part No. PC-406-1

Parts Catalog | 05.08.17
IO-540-T Parts Catalog

Document Part No. PC-615-8

Parts Catalog | 05.08.17
IO-540-J, -K, -M, -N, -P & -R Parts Catalog

Document Part No. PC-215-2

Parts Catalog | 05.08.17
IO-540-C4D5D Parts Catalog

Document Part No. PC-615-1

Parts Catalog | 05.08.17
IO-540-A, -B, -C, -D, -E, & -G Parts Catalog

Document Part No. PC-215-1

Parts Catalog | 05.08.17
TIO & LTIO-540-U2A Parts Catalog

Document Part No. PC-315-1

Parts Catalog | 05.08.17
IO-540 Parts Catalog

Document Part No. PC-615

Parts Catalog | 05.08.17
TIO-540-AK1A Parts Catalog

Document Part No. PC-315-13

Parts Catalog | 05.08.17
TIO-541 Parts Catalog

Document Part No. PC-120

Parts Catalog | 05.08.17
VO & TIVO-540 Parts Catalog

Document Part No. PC-118

Parts Catalog | 05.08.17
TIO-540-AB1AD Parts Catalog

Document Part No. PC-315-3

Parts Catalog | 05.08.17
AEIO-540-D Parts Catalog

Document Part No. PC-615-11

Parts Catalog | 05.08.17
TIGO-541 Parts Catalog

Document Part No. PC-121

Parts Catalog | 05.08.17
TIO-540-AF1A & -AF1B Parts Catalog

Document Part No. PC-315-8

Parts Catalog | 05.08.17
TIO-540-AG1A Parts Catalog

Document Part No. PC-315-9

Parts Catalog | 05.08.17
VO & IVO-360 Parts Catalog

Document Part No. PC-107

Parts Catalog | 05.08.17
TO & LTO-360 (76 Series) Parts Catalog

Document Part No. PC-124

Parts Catalog | 05.08.17
GSO & IGSO-480 Parts Catalog

Document Part No. PC-114

Parts Catalog | 05.08.17
TIO-540 Parts Catalog

Document Part No. PC-315-6

Parts Catalog | 05.08.17
IO, AIO, LIO & AEIO-320 Parts Catalog

Document Part No. PC-303

Parts Catalog | 05.08.17
IGO & IGSO-540 Parts Catalog

Document Part No. PC-116

Parts Catalog | 05.08.17
IO-540-K1H5 Parts Catalog

Document Part No. PC-615-2

Parts Catalog | 05.08.17
IO-540-L1C5 Parts Catalog

Document Part No. PC-615-5

Parts Catalog | 05.08.17
O-540-J & -L Parts Catalog

Document Part No. PC-415-1

Service Instructions | 05.03.17
Service Instruction No. 1565 A

Replacement Thermostatic Oil Cooler Bypass Valves

Service Bulletins | 04.16.17
Supplement No. 6 to Service Bulletin 342 G

STAINLESS STEEL TUBE ASSY. AND SUPPORT CLAMP INSTALLATION/INSPECTION

Service Letters | 04.07.17
Service Letter No. 270

Extended Maintenance Intervals for Spark-Ignited Engines Operated on Unleaded Fuels

Service Letters | 02.15.17
Service Letter No. 267

Warranty and Owner Registration via Lycoming Engines Website

Service Letters | 02.15.17
Service Letter No. 271

How to Access Lycoming Digital Technical Publications

Parts Catalog | 01.31.17
IO-390-C Parts Catalog

Document Part No. PC-IO-390-C

Installation & Operator Manuals | 01.31.17
IO-360-P1A Engine Installation and Operation Manual

DOCUMENT PART NO. IOM-IO-360-P1A

Maintenance Manuals | 01.31.17
IO-360-P1A Maintenance Manual

Document Part No. MM-IO-360-P1A

Installation & Operator Manuals | 12.31.16
IO-390-C Operator's Manual

Document Part No. IOM-IO-390-C Series

Maintenance Manuals | 12.31.16
IO-390-C Maintenance Manual

Document Part No. MM-IO-390-C

Parts Catalog | 10.20.16
O-320-D2J Parts Catalog

Document Part No. PC-O-320-D2J

Service Bulletins | 10.17.16
Service Bulletin No. 533 C

Recommended Action for Sudden Engine Stoppage, Propeller/Rotor Strike or Loss of Propeller/Rotor Blade or Tip

Service Bulletins | 09.21.16
Service Bulletin No. 539 A

Reprint of Crane/Lear Romec Service Bulletins No. RG9080-73-001, No. RG9570-73-001, and No. RG17980-73-001

Service Bulletins | 09.12.16
Supplement No. 1 to Service Bulletin No. 475 C

Crankshaft Gear Modification and Assembly Procedures Supplement 1

Service Bulletins | 09.08.16
Service Bulletin No. 516 A

Inspection and Removal of TCM and Bendix S-20 and S-1200 Series Impulse Coupling Magnetos

Service Bulletins | 08.16.16
Service Bulletin No. 518 D

Inspection of Thermostatic Oil Cooler Bypass Valves

Parts Catalog | 07.31.16
AEIO-390-A Parts Catalog

Document Part No. PC-AEIO-390-A

Service Instructions | 07.21.16
Service Instruction No. 1008 C

Installation of Thermostatic Oil Cooler Bypass Valve

Parts Catalog | 06.30.16
IO-360-C1G6 Parts Catalog

Document Part No. PC-IO-360-C1G6

Parts Catalog | 06.30.16
IO-390-A Parts Catalog

Document Part No. PC-IO-390-A

Service Instructions | 06.28.16
Service Instruction No. 1506 A

Replacement of Impulse Coupling Magnetos on Four-Cylinder Engines

Service Bulletins | 06.17.16
Service Bulletin No. 624

Reprint of Hartzell Engine Technologies (HET) Service Bulletin SB-065

Service Instructions | 06.17.16
Service Instruction No. 1408 C

Engine Mounting Bracket Replacement

Service Bulletins | 06.02.16
Service Bulletin No. 366 C

Carburetor Throttle Body Screw Inspection

Service Instructions | 06.01.16
Service Instruction No. 1397 A

Overflow Oil from Breather Fitting of Inverted Oil System

Service Instructions | 05.13.16
Service Instruction No. 1423 A

Thermostatic Oil Cooler Bypass Valve Part Number

Service Instructions | 05.13.16
Service Instruction No. 1301 B

Identification of Primer and Fuel Injector Lines

Service Instructions | 05.13.16
Service Instruction No. 1255 A

Thermostatic Oil Cooler Valve Replacement

Service Letters | 05.13.16
Service Letter No. 255 A

Approved Diaphragm-Type Fuel Pump

Parts Catalog | 04.30.16
TIO-540-AJ1A Parts Catalog

Document Part No. PC-TIO-540-AJ1A

Parts Catalog | 04.30.16
O-320-B1A Parts Catalog

Document Part No. PC-O-320-B1A

Service Bulletins | 04.05.16
Service Bulletin No. 612

Oil Level Gage Replacement

Service Instructions | 03.16.16
Service Instruction No. 1523 G

Lycoming Engines’ Carburetor Manufacturer Cross-References

Service Instructions | 03.10.16
Service Instruction No. 1560

Propeller Governor Drive Set Screw Inspection

Service Instructions | 03.10.16
Service Instruction No. 1566

Lycoming Engines Approves the Use of Safety Cable

Parts Catalog | 02.29.16
YO-233-B2A Parts Catalog

Document Part No. PC-YO-233-B2A

Service Bulletins | 02.03.16
Service Bulletin No. 623

Reprint of Hartzell Engine Technologies

Service Bulletins | 02.02.16
Service Bulletin No. 625

Alternator Fan Backplate

Maintenance Manuals | 01.31.16
IO-360-N1A Maintenance Manual

MM-IO-360-N1A

Parts Catalog | 01.31.16
IO-360-N1A Parts Catalog

Document Part No. PC-IO-360-N1A

Installation & Operator Manuals | 01.31.16
IO-360-N1A Installation and Operation Manual

Document Part No. IOM-IO-360-N1A

Parts Catalog | 01.31.16
(L)IO-360-M1A Parts Catalog

Document Part No. (L)IO-360-M1A

Service Instructions | 01.27.16
Service Instruction No. 1059 E

Pre-Lubrication of Parts Before Assembly

Service Letters | 01.27.16
Service Letter No. 264 A

Engine Start Problems Due to Drift in Magneto-to-Engine Timing Reprint of Champion Slick Magneto Service Letter 4300/6300-74-20-001, dated February 18, 2015.

Parts Catalog | 12.31.15
IO-540-AB1A5 Parts Catalog

Document Part No. PC-IO-540-AB1A5

Service Bulletins | 11.02.15
Supplement No. 3 to Service Bulletin No. 342 G

Fuel Line and Support Clamp Inspection and Installation

Service Bulletins | 10.30.15
Service Bulletin No. 411 D

Adapter Kit for Magneto Isolation Drive

Service Bulletins | 10.05.15
Service Bulletin No. 621 B

Diaphragm-Type Fuel Pump Replacement

Service Instructions | 07.24.15
Service Instruction No. 1526 G

New Piston Part Numbers

Service Instructions | 07.23.15
Service Instruction No. 1129 D

Methods of Checking DC Alternator and Generator Belt Tension

Service Bulletins | 05.07.15
Supplement No. 1 To Service Bulletin No. 608

Service Bulletins | 04.09.15
Service Bulletin No. 619

Hardness Check for Rocker Arm, Part Number LW-15014

Parts Catalog | 03.31.15
IO-540-D4B5 Parts Catalog

Document Part No. PC-IO-540-D485

Service Letters | 03.11.15
Service Letter No. 263

Discolored Paint on Cylinder

Parts Catalog | 01.31.15
IO-540-K1A5 Parts Catalog

Document Part No. PC-IO-540-K1A5

Service Letters | 12.31.14
Service Letter No. 262

New Piston Ring Part Numbers

Service Instructions | 11.26.14
Service Instruction No. 1559

Adjusting Fuel Pressure on AN-Drive Type Fuel Pumps

Service Bulletins | 10.10.14
Service Bulletin No. 614 A

Exhaust System Inspection and Turbocharger Mounting Bracket Replacement

Service Bulletins | 10.10.14
Supplement No. 1 to Service Bulletin No. 530 B

Service Instructions | 09.09.14
Service Instruction No. 1406 E

Crankcase Parts for Use with Large-Diameter Hydraulic Lifters

Service Instructions | 06.05.14
Service Instruction No. 1562

Turbocharged Exhaust System Installation

Service Instructions | 05.09.14
Service Instruction No. 1141 A

Replacement of Worn Starter Ring Gears

Service Instructions | 05.07.14
Service Instruction No. 1554

Zip Strap Replacement

Service Letters | 04.23.14
Service Letter No. 261 A

Alternate Carburetor

Service Instructions | 03.21.14
Service Instruction No. 1558

New Piston Ring Part Numbers

Service Bulletins | 03.06.14
Service Bulletin No. 613 

Compliance  with Hartzell Engine  Technologies (HET), LLC (Previously  Kelly Aerospace) Alert Service Bulletin No. 057 dated 2/11/14, Turbocharger  Back Plate Assembly P/N 406795­0058 Replacement 

Service Bulletins | 02.13.14
Service Bulletin No. 606

Correction of Engine Data Plate on IO-540-AE1A5 Engines

Service Bulletins | 02.06.14
Service Bulletin No. 608

Replacement of Hartzell Engine Technologies' Fuel Pump Assemblies

Service Letters | 01.23.14
Service Letter No. 259

Product Improvements on Lycoming Carburetor P/N 61C26051

Service Bulletins | 01.23.14
Supplement 2 to Service Bulletin No. 342 G

Fuel Line and Support Clamp Inspection and Installation

Parts Catalog | 11.30.13
TIO-540-AE2A Parts Catalog

Document Part No. PC-315-7

Parts Catalog | 08.31.13
IO-540-K1K5 Parts Catalog

Document Part No. PC-615-K1K5

Service Bulletins | 08.29.13
Supplement 1 to Service Bulletin No. 342 G

Fuel Line and Support Clamp Inspection and Installation

Service Letters | 08.27.13
Service Letter No. 258

Part Number Supersedure for External Retaining Ring

Parts Catalog | 07.31.13
IO-540-AE1A5 Parts Catalog

Document Part No. PC-615-AE1A5

Service Bulletins | 07.16.13
Service Bulletin No. 342 G

Fuel Line (Stainless Steel Tube Assy.) and Support Clamp Inspection and Installation

Service Letters | 04.15.13
Service Letter No. 254 

Lycoming Model Designation for all Carburetors

Service Bulletins | 03.26.13
Service Bulletin No. 201 F

Inspection of Crankshaft Flange

Service Instructions | 03.19.13
Supplement No. 1 to Service Instruction No. 1454 A 

Rocker Arm Assembly Replacement Parts Supplement 1

Parts Catalog | 12.31.12
O-320-H (76 Series) Parts Catalog

Document Part No. PC-122-H 76 Series

Parts Catalog | 11.30.12
O-235-L2A & -L2C Parts Catalog

Document Part No. PC-302-L2A, -L2C

Parts Catalog | 11.30.12
IO-540-AG1A5 Parts Catalog

Document Part No. PC-615-AG1A5

Service Bulletins | 11.21.12
Service Bulletin No. 604 

Compliance with Hartzell Engine Technologies, LLC Alert Service Bulletin No. 048 dated 11/16/2012, Turbocharger model TAO411, P/N 410188-0019 Turbine Wheel Replacement

Installation & Operator Manuals | 10.31.12
O-540-A4E5 Operator's Manual

Document Part No. 60297-43

Maintenance Manuals | 10.31.12
IO-540-AG1A5 Maintenance Manual

Document Part No. LM-IO-540-AG1A5

Parts Catalog | 10.31.12
O-360-A4M Parts Catalog

Document Part No. PC-306-A4M

Installation & Operator Manuals | 10.31.12
IO-540-AG1A5

Document Part No. 60297-45

Service Bulletins | 10.09.12
Supplement No. 1 to Service Bulletin No. 603

Reprint of Slick Service Bulletin SB1-12 Supplement 1

Service Instructions | 10.04.12
Service Instruction No. 1546

Specific Requirements for Installation and Removal of Electrical Lead on Hartzell Engine Technologies, LLC Starters

Service Bulletins | 10.04.12
Service Bulletin No. 603 

Reprint of Slick Service Bulletin SB1­-12

Service Instructions | 10.02.12
Service Instruction No. 1545 

Expanded Clearance in Crankcase Nose

Service Bulletins | 08.31.12
Supplement No. 1 to Service Bulletin No. 543 C

Oil Filter Converter Plate Gasket Replacement

Parts Catalog | 07.31.12
O-320-D3G Parts Catalog

Document Part No. PC-203-D3G

Service Instructions | 06.27.12
Service Instruction No. 1549

Notification of Approved Fuel Pump Plunger P/N 23D26777

Maintenance Manuals | 05.31.12
O-540-A4E5 Maintenance Manual

Document Part No. LM-O-540

Service Instructions | 04.05.12
Service Instruction No. 1256 F

Valve Guides For Service Use

Installation & Operator Manuals | 03.31.12
AEIO-390-A Operator's Manual

Document Part No. 60297-42

Parts Catalog | 03.31.12
IO-360-L2A Parts Catalog

Document Part No. PC-406-L2A

Parts Catalog | 03.31.12
O-540-A4E5 Parts Catalog

Document Part No. PC-515-A4E5

Service Bulletins | 03.14.12
Service Bulletin No. 599 

Compliance with Hartzell Engine Technologies, LLC Service Bulletin No. 045, 201F Fuel Pump Inspection and Recall

Service Bulletins | 03.08.12
Service Bulletin No. 602 

Incorrect Part Numbers on Service Instruction No. 1098G

Service Instructions | 03.06.12
Service Instruction No. 1458 G

Connecting Rod Bolts

Service Instructions | 02.27.12
Service Instruction No. 1414 B

Bendix Service Bulletin No. RS­77, Rev. 2 

Service Bulletins | 02.23.12
Service Bulletin No. 240 W 

Mandatory Parts Replacement at Overhaul and During Repair or Maintenance

Service Instructions | 02.23.12
Service Instruction No. 1543 

Notification of Approved Tappet P/N 15B26262 

Service Instructions | 02.01.12
Service Instruction No. 1457 A 

Optional Remote­Mounted Oil Filter Kits

Parts Catalog | 12.31.11
O-320-B & -D Parts Catalog

Document Part No. PC-203-9

Service Instructions | 12.13.11
Supplement No. 1  To  Service Instruction No. 1535 

Counterweight and Roller Removal, Inspection, and Installation 

Parts Catalog | 11.30.11
O-320-E2G Parts Catalog

Document Part No. PC-203-7

Parts Catalog | 11.30.11
O-320-E2H & -E3H Parts Catalog

Document Part No. PC-203-8

Parts Catalog | 11.30.11
O-320-E2B & -E2C Parts Catalog

Document Part No. PC-203-5

Service Bulletins | 11.22.11
Service Bulletin No. 601

Non-Compliant Oil Fill Tubes P/N 77527

Service Instructions | 11.10.11
Service Instruction No. 1143 C

Counterweight Bushing Inspection, Replacement, and Special Tooling Upgrades

Parts Catalog | 10.31.11
O-320-E1F, & -E2F Parts Catalog

Document Part No. PC-203-4

Parts Catalog | 10.31.11
O-320-E1A & -E2A Parts Catalog

Document Part No. PC-203-3

Service Instructions | 10.31.11
Service Instruction No. 1535 

Counterweight and Roller Removal, Inspection, and Installation

Parts Catalog | 09.30.11
O-320-E2D & -E3D Parts Catalog

Document Part No. PC-203-6

Parts Catalog | 08.31.11
O-320-A2C & -A2D Parts Catalog

Document Part No. PC-203-2

Service Letters | 08.02.11
Service Letter No. 220 C

Wide Deck Cylinder Configuration on Lycoming Engines

Parts Catalog | 07.31.11
O-320-A2B & -A3B Parts Catalog

Document Part No. PC-203-1

Parts Catalog | 07.31.11
O-360-B2C Parts Catalog

Document Part No. PC-306-7

Service Letters | 07.29.11
Service Letter No. 250 A

Lycoming Engines Exchange Engine Core Policy

Service Bulletins | 06.01.11
Service Bulletin No. 598 A 

V-Band Clamp P/N LW-12125-3 and LW-12093-6 on Turbocharged Engines

Parts Catalog | 05.31.11
O & LO-360-A1H6 Parts Catalog

Document Part No. PC-306-5

Parts Catalog | 05.31.11
O-360-A1P Parts Catalog

Document Part No. PC-306-6

Parts Catalog | 05.31.11
TIO-540-AH1A Parts Catalog

Document Part No. PC-315-10

Service Bulletins | 05.06.11
Service Bulletin No. 595

Torque Values for Screws that Attach Ignition Harness Attachment Plate

Service Bulletins | 05.04.11
Service Bulletin No. 597

Fuel Drain Valve Adapter Assembly P/N LW-13807

Parts Catalog | 04.30.11
O-360-A4N Parts Catalog

Document Part No. PC-306-3

Service Bulletins | 04.27.11
Service Bulletin No. 596 

Reprint of AVStar Mandatory Service Bulletin AFS-SB6 Revision 2

Service Instructions | 04.12.11
Service Instruction No. 1497 A

Engine Procedures for Flight Training Operations

Parts Catalog | 03.31.11
O-360-C1G Parts Catalog

Document Part No. PC-306-4

Service Instructions | 03.29.11
Service Instruction No. 1484 C

Installation Torque for Fuel Metering Device, Carburetor, Fuel Injector Servo or "AN" Fuel Pump Hold Down Nuts

Service Instructions | 03.28.11
Service Instruction No. 1442 A

Improved Oil Filter Bypass Valve

Service Instructions | 03.09.11
Service Instruction No. 1489 C

Fuel Manifold Spring Change

Parts Catalog | 02.28.11
IO-540-V Parts Catalog

Document Part No. PC-615-3

Service Instructions | 02.25.11
Service Instruction No. 1420 A

Fuel Pump Drive Spline Lubrication

Service Instruction No. 1454 A  | 02.25.11
Service Instruction No. 1454 A 

Rocker Arm Assembly Replacement Part 

Service Instructions | 02.10.11
Service Instruction No. 1508 C

Dual Magneto Attachment

Service Instructions | 02.04.11
Service Instruction No. 1539

Fuel Manifold Spring Change

Service Instructions | 02.04.11
Service Instruction No. 1530

Engine Inspection in Particulate-Laden Environments

Service Instructions | 01.27.11
Service Instruction No. 1534

Service Recommendations for Long-Term Storage of Engines That Use Automotive Fuel

Service Letters | 01.14.11
Service Letter No. 248

O-235 Crankcase Design Upgrade

Service Bulletins | 01.10.11
Service Bulletin No. 594

Reprint of Hartzell Engine Technologies LLC Mandatory Service Bulletin 040A

Parts Catalog | 12.31.10
IO-360-M1B Parts Catalog

Document Part No. PC-306-16

Parts Catalog | 12.31.10
TIO-540-AA1AD Parts Catalog

Document Part No. PC-315-4

Service Instructions | 12.29.10
Service Instruction No. 1427 C

Lycoming Reciprocating Engine Break-In and Oil Consumption

Service Instructions | 12.21.10
Service Instruction No. 1483 A

Valve Leak Check with Engine Cylinder Removed

Service Letters | 11.23.10
Service Letter No. 251

Connecting Rod Bolt Marking

Service Bulletins | 11.22.10
Service Bulletin No. 398 B

Recommended Corrective Action for Use of Incorrect Fuel

Service Letters | 10.06.10
Service Letter No. 249 

Interim Alternative to Address the Discontinuation of Teledyne Dual Magnetos

Service Bulletins | 09.29.10
Service Bulletin No. 543 C

Oil Filter Converter Plate Gasket Replacement

Service Bulletins | 09.29.10
Service Bulletin No. 592 

Engine Inspection after Overboost

Service Instructions | 09.29.10
Service Instruction No. 1192 A

Valve Spring Compressor No. ST-266

Service Instructions | 09.29.10
Service Instruction No. 1436 A

Adapter Kit for Magneto Isolation Drive

Service Instructions | 09.24.10
Service Instruction No. 1453 B

Procedure to Replace Oil Filter Converter Plate Gasket

Service Instructions | 09.24.10
Service Instruction No. 1299 B

Magneto Drive Gear and Cushion Modification

Parts Catalog | 08.31.10
TIO-LTIO-540 Parts Catalog

Document Part No. PC-315-5

Service Instructions | 08.26.10
Service Instruction No. 1204 D

Exhaust Flange Gaskets

Service Bulletins | 08.24.10
Service Bulletin No. 593 B

Intake Valve P/N 17A23942 Inspection for Date Stamp

Parts Catalog | 07.31.10
IVO-360-A1A Parts Catalog

Document Part No. PC-306-17

Service Bulletins | 07.09.10
Service Bulletin No. 399 A

Action to Take if Loss of Oil Pressure

Service Instructions | 06.18.10
Service Instruction No. 1132 B

Magneto Drop-Off

Service Instructions | 06.11.10
Service Instruction No. 1531

Alternator Bracket for Engines Equipped with Kelly Aerospace E-drive Starters

Parts Catalog | 05.31.10
O, LO & TO-360 Parts Catalog

Document Part No. PC-306-2

Service Bulletins | 05.10.10
Service Bulletin No. 591 A

Reprint of Kelly Mandatory Service Bulletin No. 039A, Turbine Wheel Replacement

Parts Catalog | 03.31.10
O-540-A4B5 Parts Catalog

Document Part No. PC-515-5

Reference Documents | 02.28.10
Special Service Publication No. 384 2nd Edition

Special Service Tools

Service Instructions | 01.06.10
Service Instruction No. 1238 B

Assembly and Torque Procedures for V-Band Couplings

Parts Catalog | 12.31.09
TIO-360-C1A6D Parts Catalog

Document Part No. PC-406-3

Parts Catalog | 12.31.09
TIO-540-W2A Parts Catalog

Document Part No. PC-315-11

Service Instructions | 12.15.09
Service Instruction No. 1528

Aircraft Engine Starter Recommendations

Service Instructions | 12.15.09
Service Instruction No. 1424 A

Installation Procedure for P/N 15B26066 Hydraulic Tappet/Plunger Assemblies

Service Instructions | 12.15.09
Service Instruction No. 1246 B

Engine Conversion For Use of 100/130 or 100LL Grade Fuel

Service Bulletins | 12.15.09
Supplement No. 1 to Service Bulletin No. 582 A

Reprint of Precision Airmotive Mandatory Service Bulletin No. MSA-13 Supplement 1

Service Bulletins | 11.13.09
Service Bulletin No. 590 A

Use of Aircraft Boost Pump with Kelly Aerospace 200F Series Fuel Pumps

Parts Catalog | 10.31.09
YIO-390-B Parts Catalog

Document Part No. PC-409-2

Installation & Operator Manuals | 10.31.09
YIO-390-B Operations & Installation Manual

Document Part No. 60297-37

Parts Catalog | 09.30.09
O-540-F1B5 Parts Catalog

Document Part No. PC-515-2

Service Instructions | 08.28.09
Supplement No. 1 to Service Instruction No. 1512

Main Crankshaft and Connecting Rod Bearing Part Numbers

Service Instructions | 08.28.09
Service Instruction No. 1267 D

Piston Pin Plug Usage

Parts Catalog | 07.31.09
O-540-B, -E, & -G Parts Catalog

Document Part No. PC-115-2

Service Bulletins | 05.27.09
Supplement No. 1 to Service Bulletin No. 569 A

Service Letters | 05.27.09
Service Letter No. 240 A

Part Numbers Identified by Lycoming with -70 or -85 Suffix

Service Instructions | 05.26.09
Service Instruction No. 1324 C

Crankshaft Oil Seals

Service Instructions | 03.20.09
Service Instruction No. 1492 D

Piston Pin Plug Wear Inspection

Service Bulletins | 03.17.09
Service Bulletin No. 585

Incorrect Exhaust Valve Rotator Cap Shipped with Cylinder Kits P/N 05K21119, 05K21121, and 05K21122

Installation & Operator Manuals | 03.01.09
O-540 & IO-540 Operator's Manual

Document Part No. 60297-10 & 60297-10-3

Parts Catalog | 02.28.09
IO & LIO-360-C & HIO, TIO, AEIO-360 Parts Catalog

Document Part No. PC-406-2

Service Instructions | 02.23.09
Service Instruction No. 1524

Alternator Bracket Kit for 130A Alternators

Service Instructions | 02.20.09
Service Instruction No. 1409 C

Lycoming Engines P/N LW-16702, Oil Additive

Service Bulletins | 02.20.09
Service Bulletin No. 471 B

Lycoming Engines Oil Additive P/N LW-16702

Service Instructions | 01.16.09
Service Instruction No. 1525

Reprint of Precision Service Information Letter No. SIL RS-92

Service Bulletins | 11.19.08
Service Bulletin No. 581 A

Reprint of Precision Airmotive Mandatory Service Bulletins Nos. PRS-107, Rev. 4 and PEX-1, Rev. 1

Service Instructions | 11.19.08
Service Instruction No. 1522

Reprint of Precision Service Information Letter No. SIL RS-62 Revision 2

Service Instructions | 11.19.08
Service Instruction No. 1521

Reprint of Precision Service Information Letter No. SIL RS-35 Revision 1

Parts Catalog | 10.31.08
IO-540-AC1A5 Part's Catalog

Document Part No. PC-615-12

Service Bulletins | 10.17.08
Service Bulletin No. 584 B

Reprint of Mandatory Unison Service Bulletin No. SB3-08A

Service Instructions | 10.17.08
Service Instruction No. 1125 D

Alternate Crankcase Parting Surface Sealants

Service Bulletins | 10.10.08
Service Bulletin No. 582 A

Reprint of Precision Airmotive Mandatory Service Bulletin No. MSA-13

Service Instructions | 09.23.08
Service Instruction No. 1275 C

Cleaning Fuel Injector Nozzles

Service Bulletins | 09.19.08
Service Bulletin No. 577 A

Reprint of Sky-Tec Service Bulletin No. 07-01, Rev. D

Service Instructions | 09.19.08
Service Instruction No. 1519 A

Reprint of Precision Service Information Letter No. SIL RS-87 Revision 1

Service Bulletins | 08.22.08
Service Bulletin No. 564 A 

Inspection of Suction Screen Length

Service Instructions | 08.22.08
Service Instruction No. 1520 

Reprint of Precision Service Information Letter No. SIL RS-88

Installation & Operator Manuals | 07.31.08
IO-390-A Operator's Manual

Document Part No. 60297-34

Service Bulletins | 07.21.08
Service Bulletin No. 583 A

Reprint of Mandatory Unison Service Bulletin No. SB2-08

Service Bulletins | 07.18.08
Service Bulletin No. 446 E

The Use of Lycoming LW-16702 Oil Additive

Parts Catalog | 06.30.08
IO-540-AF1A5 Parts Catalog

Document Part No. PC-615-14

Installation & Operator Manuals | 06.30.08
GO-480, IGO-480, GSO-480 & IGSO-480 Operator's Manual

Document Part No. 60297-14

Installation & Operator Manuals | 06.30.08
(L)IO-360-M1A Operator's Manual

Document Part No. 60297-36

Service Instructions | 05.16.08
Service Instruction No. 1257 G

Horsepower, Manifold Pressure and RPM Values

Installation & Operator Manuals | 04.30.08
VO-540, IVO-540 & TIVO-540 Operator's Manual

Document Part No. 60297-17

Service Instructions | 03.14.08
Service Instruction No. 1518

Reprint of Precision Service Information Letter No. SIL RS-84

Service Bulletins | 02.15.08
Service Bulletin No. 580

Reprint of Kelly Aerospace Service Bulletin No. 029

Service Instructions | 02.08.08
Service Instruction No. 1481 B

Factory Engine Preservation

Installation & Operator Manuals | 01.31.08
IO-540-AF1A5 Operation and Installation Manual

Document Part No. 60297-33

Installation & Operator Manuals | 12.31.07
TO-360 Operator's Manual

Document Part No. 60297-20

Installation & Operator Manuals | 12.31.07
IGO-540 & IGSO-540 Operator's Manual

Document Part No. 60297-15

Installation & Operator Manuals | 11.30.07
TIO-541 Operator's Manual

Document Part No. 60297-10 & 60297-13

Service Bulletins | 11.16.07
Service Bulletin No. 579 

Clearance Between Oil Sump Assembly and Oil Sump Baffle

Service Letters | 11.02.07
Service Letter No. 245 

Special Service Publication No. SSP-567, "Camshaft Regrinding"

Service Instructions | 10.12.07
Service Instruction No. 1148 C

Use of Carburetor Heat Control

Service Bulletins | 09.21.07
Service Bulletin No. 576

Reprint of Teledyne Continental Ignition Systems Service Bulletin No. SB633A

Service Bulletins | 09.21.07
Service Bulletin No. 578

Incorrect Cylinder Assemblies Shipped with Cylinder Kits

Service Bulletins | 07.20.07
Service Bulletin No. 574 A

Cylinder Stud Hole Cross-Threaded

Installation & Operator Manuals | 06.30.07
TO-360 (76 Series) Operator's Manual

Document Part No. 60297-26

Service Instructions | 06.15.07
Service Instruction No. 1343 C

Set Screw for Propeller Governor Idler Shaft

Service Letters | 06.15.07
Service Letter No. 221 C

Warranty Repair of Precision Airmotive Corporation Fuel Control Products

Service Letters | 06.15.07
Service Letter No. 234 B

Tool Rental Program

Service Instructions | 06.15.07
Service Instruction No. 1080 C

Maintenance Items for Special Attention

Service Instructions | 06.12.07
Test Service Instruction

Installation & Operator Manuals | 05.31.07
AEIO-320, AEIO-360 & AEIO-540 Operator's Manual

Document Part No. 60297-21

Parts Catalog | 05.31.07
AEIO-580-B1A Parts Catalog

Document Part No. PC-701-2

Installation & Operator Manuals | 05.31.07
O-360 (76 Series) Operator's Manual

Document Part No. 60297-25

Installation & Operator Manuals | 05.31.07
AEIO-580-B1A Operator's Manual

Document Part No. 60297-32

Installation & Operator Manuals | 05.31.07
IO-390 Operator's Manual

Document Part No. 60297-29

Installation & Operator Manuals | 03.31.07
O-320 (76 Series) Operator's Manual

Document Part No. 60297-22

Service Bulletins | 03.16.07
Supplement No. 1 to Service Bulletin No. 573

Pressurized Magneto Pressure Tests Supplement 1

Service Instructions | 03.16.07
Supplement No. 1 To Service Instruction No. 1308 E

Pressurized Magneto Pressure Test

Service Bulletins | 02.23.07
Service Bulletin No. 573

Pressurized Magneto Pressure Tests

Service Instructions | 02.02.07
Service Instruction No. 1308 E

Pressurized Magneto Pressure Test

Installation & Operator Manuals | 01.01.07
O-235 & O-290 Operator's Manual

Document Part No. 60297-9 & 60297-9-1

Installation & Operator Manuals | 12.31.06
IO-320 Operator's Manual

Document Part No. 60297-31

Reference Documents | 12.30.06
Special Service Publication No. 475

Troubleshooting Guide

Installation & Operator Manuals | 10.31.06
TIO-540-AE2A Operator's Manual

Document Part No. 60297-27

Service Bulletins | 10.30.06
Service Bulletin No. 572

Missing Oil Passage Hole at Idler Shaft Location

Service Instructions | 10.27.06
Service Instruction No. 1517

Timing Change for TIO-540-AK1A Series Engines

Service Bulletins | 10.06.06
Service Bulletin No. 544 B

Bearing Replacement Part Identitfication

Installation & Operator Manuals | 09.30.06
IO-720 Operator's Manual

Document Part No. 60297-19

Installation & Operator Manuals | 09.30.06
O-320 Operator's Manual

Document Part No. 60297-30

Service Instructions | 05.25.06
Service Instruction No. 1340 A

Piston Pin Identification

Service Bulletins | 05.05.06
Service Bulletin No. 571

Reprint of Sky-Tec Service Bulletin No. 2006-0-3-1

Service Instructions | 05.05.06
Service Instruction No. 1105 B

Periodic Inspection of Generator/Alternator Mounting Brackets

Service Bulletins | 04.11.06
Service Bulletin No. 569 A

Crankshaft Retirement for Certain Lycoming Engines

Service Bulletins | 03.27.06
Service Bulletin No. 568

Service Letters | 03.27.06
Service Letter No. 244

Revision to Appendix 1 in Service Bulletin No. 569

Service Letters | 03.10.06
Service Letter No. 173 C

Slick Aircraft Products Service Bulletin No. SB2-80C

Installation & Operator Manuals | 02.28.06
TIO-540 (Parallel Valve Cylinder) Operator's Manual

Document Part No. 60297-23P

Service Instructions | 12.09.05
Service Instruction No. 1438 A

Propeller Governor Pad Plate P/N LW-12347

Parts Catalog | 11.30.05
AEIO-360-B Parts Catalog

Document Part No. PC-406-4

Service Bulletins | 11.30.05
Supplement No. 1 to Service Bulletin No. 566

Crankshaft Replacement in Lycoming Engines

Parts Catalog | 10.31.05
O-540-H2A5 Parts Catalog

Document Part No. PC-515-4

Installation & Operator Manuals | 10.31.05
TIO-540 (Angle Valve Cylinder Heads) Operator's Manual

Document Part No. 60297-23A

Installation & Operator Manuals | 10.01.05
O-360, HO-360, IO-360, AIO-360, HIO-360 & TIO-360 Operator's Manual

Document Part No. 60297-12 & 60297-12-5

Service Bulletins | 08.31.05
Service Bulletin No. 548 A

Diaphragm-Type Fuel Pump Inspection/Replacement

Service Bulletins | 07.11.05
Service Bulletin No. 566

Crankshaft Replacement in Lycoming Engines

Service Instructions | 06.13.05
Test Service Instruction w/attachment & copy

Service Instructions | 05.26.05
Service Instruction No. 1511 A

Inspection of "PID" Stamped Crankshafts

Service Instructions | 04.12.05
Service Instruction No. 1164 B

Oil Pump Application

Service Bulletins | 02.21.05
Service Bulletin No. 565

Diaphragm-Type Fuel Pump Inspection/Replacement

Service Letters | 01.06.05
Service Letter No. 242

Improved Lower Idle Valve in Fuel Injectors

Service Bulletins | 11.22.04
Service Bulletin No. 388 C

Procedure to Determine Exhaust Valve and Guide Condition

Service Bulletins | 11.22.04
Service Bulletin No. 530 B

Application of Protective Coating on Crankshaft

Service Instructions | 09.23.04
Service Instruction No. 1513

Reprint of Lamar Service Information Letter No. LSI-009

Service Instructions | 09.23.04
Service Instruction No. 1512

Main and Connecting Rod Bearing Upgrade

Service Bulletins | 08.06.04
Service Bulletin No. 561

Connecting Rod Bearing Replacement on TIO-540-U2A, -V2AD, and -W2A Engines

Service Instructions | 04.22.04
Service Instruction No. 1510 A

Adapter Kit for Magneto Isolation Drive

Service Bulletins | 03.23.04
Service Bulletin No. 559

Reprint of Kelly Aerospace Power Systems Service Bulletin No. A-112, Rev. A

Service Bulletins | 11.17.03
Service Bulletin No. 558

Inspection of Oil Suction Screen Area for Casting Voids

Parts Catalog | 08.31.03
AEIO-360-H1B Parts Catalog

Document Part No. PC-406-5

Service Bulletins | 08.15.03
Supplement No. 5 to Service Bulletin No. 554

Crankshaft Gear Retaining Bolt Replacement Supplement 5

Service Instructions | 07.10.03
Service Instruction No. 1462 A

Propeller Oil Control Leak Test Procedure

Service Instructions | 07.02.03
Service Instruction No. 1485 A

Exhaust Valve and Guide Identification Procedure

Service Bulletins | 05.16.03
Service Bulletin No. 555 A

Oil Pump Body Plug Inspection

Service Bulletins | 05.07.03
Service Bulletin No. 557

Reprint of Precision Airmotive Corporation Service Bulletin No. PRS-105

Service Bulletins | 04.28.03
Supplement No. 1 to Service Bulletin No. 547

Connecting Rod Bearing Replacement on TIO-540-AE2A Model Engines

Service Instructions | 04.25.03
Service Instruction No. 1509

Replacement of all P/N STD 1409 Nuts with P/N STD-2249 Nuts

Service Bulletins | 04.02.03
Supplement No. 4 to Service Bulletin No. 554

Crankshaft Gear Retaining Bolt Replacement

Installation & Operator Manuals | 03.31.03
IO-580-B1A Operator's Manual

Document Part No. 60297-28

Parts Catalog | 02.28.03
IO-580-B1A Parts Catalog

Document Part No. PC-701-1

Parts Catalog | 01.31.03
HIO-360-G1A Parts Catalog

Document Part No. PC-406-6

Parts Catalog | 01.31.03
O-540-A4D5 Parts Catalog

Document Part No. PC-515-3

Service Bulletins | 01.30.03
Service Bulletin No. 475 C

Crankshaft Gear Modification and Assembly Procedures

Service Bulletins | 01.29.03
Service Bulletin No. 556

Replacement of Washer P/N LW-11201

Service Instructions | 12.16.02
Supplement No. 1 to Service Bulletin No. 553

Crankshaft Inspection for Lycoming Six Cylinder Turbocharged Engines

Service Bulletins | 11.12.02
Supplement No. 3 to Service Bulletin No. 554

Crankshaft Gear Retaining Bolt Replacement

Footer menu

  • Careers
  • Lycoming Gear Store
  • Warranty

Follow Us

  • Youtube
  • Instagram
  • Twitter
  • Facebook

Footer Utility

  • Terms & Conditions
  • Privacy Policy
  • Legal
  • Employee Emergency Information

Lycoming Engines is an Operating Division of Avco Corporation. ©2023 Avco Corporation.

LYCOMING ENGINES
652 Oliver Street
Williamsport, PA 17701
1-800-258-3279