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

KNOWLEDGE BASE

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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

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

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