Lycoming O-360 Series User Manual

NOTE
In order to accommodate clearer type, larger charts and graphs, and more
detailed illustrations, this edition of the O-360, HO-360, IO-360, AIO-360,
HIO-360 and TIO-360 Operator’s Manual, Lycoming Part Number
60297-12, is presented in an 8-1/2 x 11 inch format. This edition is a
complete manual, current as of the date of issue. The manual incorporates
all previously issued revisions.
This manual will be kept current by revisions available from Lycoming
distributors or from the factory. All revisions will be accompanied by an
Operator’s Manual Revision page which will identify the revision level, the
date of the revision, and the pages revised, added or deleted. All revisions
will be supplied in the 8-1/2 x 11 inch format.

Lycoming O-360 Series Specifications

General

Configuration	Horizontally opposed
Number of Cylinders	4
Firing Order	1-3-2-4
Cooling System	Air-cooled
Oil System	Wet sump
Displacement	361 cubic inches (5.9 liters)
Bore	5.125 in (130.2 mm)
Stroke	4.375 inches (111.1 mm)
Weight	258 lbs (117 kg)
Fuel Type	Avgas 100LL
Compression Ratio	8.5:1

Summary

SECTION 2 SPECIFICATIONS

Engine Model Specifications

Technical data for various O-360, HO-360, IO-360, etc. engine models.

SECTION 3 OPERATING INSTRUCTIONS

General Operating Rules

Fundamental guidelines for engine operation, economy, and longevity.

Engine Starting Procedures

Recommended steps for starting engines with different fuel systems.

Ground Operations

Procedures for ground checks, takeoff, climb, and in-flight operation.

Fuel Mixture and Temperature Management

Guidance on leaning mixture and managing cylinder head temperatures.

Operating Conditions and Performance Charts

Data on fuel pressure, oil, engine conditions, and performance curves.

Shut Down Procedure

Instructions for properly shutting down the engine.

SECTION 4 PERIODIC INSPECTIONS

Pre-Starting Items of Maintenance

Importance of regular checks for safety and durability.

Daily Pre-Flight Inspection

Essential pre-flight checks for engine safety and readiness.

SECTION 5 MAINTENANCE PROCEDURES

Ignition System Maintenance

Procedures for ignition harness, wiring, and magneto timing.

Lubrication System Maintenance

Cylinder Maintenance Procedures

SECTION 6 TROUBLE-SHOOTING

Engine Troubleshooting Guide

Common engine problems, their probable causes, and recommended remedies.

Turbocharger Troubleshooting Guide

Common turbocharger issues, causes, and solutions.