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

KNOWLEDGE BASE

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

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

Parts Catalog | 01.31.16
IO-360-N1A Parts Catalog

Document Part No. PC-IO-360-N1A

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

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Lycoming Engines is an Operating Division of Avco Corporation. ©2025 Avco Corporation.

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