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

KNOWLEDGE BASE

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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

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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