Name: Lycoming IO-360 Series
Brand: Lycoming
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SECTION 5 LYCOMING OPERATOR’S MANUAL

MAINTENANCE PROCEDURES O-360 AND ASSOCIATED MODELS

Figure 5-5. Exhaust Bypass Valve Open and Closed Setting

Figure 5-6. Timing Marks on Rotating Magnet

5-12

Operator's Manual Revision3
Important Safety Notice9
General11
Table of Contents12
Table of Contents14
Description14
Cylinders16
Valve Operating Mechanism16
Crankcase16
Crankshaft16
- A Brief Description of the Carburetors and Fuel Injectors17
- Crankcase Covers (AIO Series)17
Connecting Rods17
Pistons17
Accessory Housing17
Oil Sump17
Cooling System17
Induction System17
Model Application Table18
Lubrication System18
Priming System18
Ignition System18
Counterweight System18
- Specifications22
- O-360-A, -C, -F Series Specifications24
- O-360-B, -D Series Specifications24
- O-360-J2A Specifications24
- HO-360-A, -C Specifications25
- HO-360-B Series Specifications25
- IO-360-L2A Specifications25
- IO-360-A, -C, -D, -J, -K Series Specifications26
- IO-360-B1G6, - M1B Specifications26
- AIO-360-A, -B Series Specifications27
- HIO-360-A, -B Series Specifications27
- IO-360-B, -E, -F Series Specifications27
- HIO-360-C Series Specifications28
- HIO-360-D Series Specifications28
- HIO-360-E Series Specifications28
- HIO-360-F1AD Series Specifications29
- HIO-360-G1A Specifications29
- TIO-360-A Series Specifications29
- Detail Weights30
- Engine, Standard, Dry Weight30
- TIO-360-C Series Specifications30
- HO-360 Series Detail Weights31
- IO-360 Series Detail Weights31
- O-360 Series Detail Weights31
- AIO-360 Series Detail Weights32
- Dimensions, Inches32
- HIO-360 Series Detail Weights32
- TIO-360 Series Detail Weights32
- Operating Instructions36
- Engines Equipped with Float Type Carburetors - Starting38
- General Information on Operation38
- Prestarting Items of Maintenance38
  - Starting Procedures. O-360, HO-360, IO-360, AIO-360, HIO-360, TIO-360 Series38
  - Engines Equipped with Pressure Carburetors or Bendix Fuel Injectors - Starting39
- Cold Weather Starting40
- Engines Equipped with Simmonds Type 530 Fuel Injector - Starting40
- Ground Running and Warm-Up40
  - Fixed Wing41
  - Fixed Wing Aircraft41
- Ground Check41
  - Helicopter41
  - Fuel Mixture Leaning Procedure42
- Operation in Flight42
  - General Rules43
  - Leaning to Exhaust Gas Temperature Gage43
  - Normally Aspirated Engines with Fuel Injectors or Uncompensated Carburetors43
  - Turbocharged Engines43
  - Representative Effect of Fuel/Air Ratio on Cylinder Head Temperature, Power and Specific Fuel Consumption at Constant RPM and Manifold Pressure in Cru44
  - Leaning to Flowmeter45
  - Leaning with Manual Mixture Control45
  - Use of Carburetor Heat Control45
  - Climbing46
  - Flight Operation, Landing Approach46
  - Ground Operation46
  - Take-Off46
- Engine Flight Chart47
- Oil Sump Capacity48
- Operating Conditions48
  - O-360-A, -C Series Operating Conditions49
  - O-360-A1P, -A4D, -A4P, -C4P, -F, -G Series Operating Conditions49
  - O-360-B, -D Series Operating Conditions49
  - HO-360-A, -C Series; HIO-360-G1A Operating Conditions50
  - HO-360-B Series Operating Conditions; IO-360-A, -C, -D, -J, -K; AIO-360 Series Operating Conditions50
  - IO-360-B, -E, -F Series (Except -B1C); IO-360-M1A, -M1B Operating Conditions50
  - O-360-J2A Operating Conditions50
  - HIO-360-A Series, HIO-360-B Series Operating Conditions51
  - HIO-360-C Series Operating Conditions51
  - IO-360-B1C Operating Conditions51
  - IO-360-L2A Operating Conditions51
  - HIO-360-D Series Operating Conditions52
  - HIO-360-E Series Operating Conditions52
  - HIO-360-F Series Operating Conditions52
  - TIO-360-A Series; TIO-360-C Series Operating Conditions52
- Shut down Procedure53
  - Sea Level Power Curve - O-360-B, -D Series54
  - Part Throttle Fuel Consumption - O-360-C2B, -C2D55
  - Part Throttle Fuel Consumption - HO-360-B Series56
  - Part Throttle Fuel Consumption - IO-360-A, -C, -D, -J, -K; AIO-360 Series57
  - Part Throttle Fuel Consumption - IO-360-B, -E, -F, -M1B Series (Excepting IO-360-B1A, -B1C); HIO-360-G1A58
  - Part Throttle Fuel Consumption - IO-360-B1A59
  - Part Throttle Fuel Consumption - IO-360-B1C60
  - Part Throttle Fuel Consumption - IO-360-L2A61
  - Fuel Flow Vs Percent Rated Power - TIO-360-A Series62
  - Fuel Flow Vs Percent Rated Power - HIO-360-D63
  - Sea Level and Altitude Performance - HIO-360-D64
  - Fuel Flow Vs Percent Rated Power - HIO-360-A Series66
  - Fuel Flow Vs Percent Rated Power - HIO-360-B Series67
  - Fuel Flow Vs Percent Rated Power - HIO-360-C Series68
  - Sea Level and Altitude Performance - O-360-A, -C (Except those Listed for Figure 3-40); HIO-360-A Series69
  - Sea Level and Altitude Performance - O-360-C2B, -C2D70
  - Sea Level and Altitude Performance - O-360B, -D Series71
  - Sea Level and Altitude Performance - HO-360-B Series72
  - Sea Level and Altitude Performance - IO-360-A, -C, -D, -J, -K; AIO-360 Series73
  - Sea Level and Altitude Performance - IO-360-B, -E, -F Series (Excepting IO-360-B1A, -B1C) HIO-360-G1A74
  - Sea Level and Altitude Performance - IO-360-B1A75
  - Sea Level and Altitude Performance - IO-360-B1C76
  - Sea Level and Altitude Performance - IO-360-L2A77
  - Sea Level and Altitude Performance - IO-360- M1B78
  - Sea Level and Altitude Performance - HIO-360-A Series79
  - Sea Level and Altitude Performance - HIO-360-B Series80
  - Sea Level and Altitude Performance - HIO-360-C Series81
  - Sea Level and Altitude Performance - TIO-360-A Series82
  - Fuel Flow Vs Percent Rated Power - HIO-360-E, -F Series87
  - Sea Level and Altitude Performance - HIO-360-E Series88
  - Sea Level and Altitude Performance with Turbocharger Kit SK-28-12100-HIO-360-E Series89
  - Fuel Flow Vs Percent Rated Power - O-360-A, -C, -F, -G Series; HO-360-C1A90
  - Fuel Flow Vs Percent Rated Power - O-360-J2A91
  - Sea Level and Altitude Performance - O-360-J2A92
  - Sea Level and Altitude Performance - O-360-A1A, -A1D, A1P, -A2D, -A2F, -A3A, -A4A, -A4D, -A4M, -A4N, -A4P, -A1F6, -A1H6, -C1F, -C1G, -C4F, -C4P, -F1A693
  - Sea Level and Altitude Performance - HIO-360-F Series94
  - Sea Level and Altitude Performance with Turbocharger Kit SK-28-121000-HIO-360-F Series95
  - Fuel Flow Vs Brake Horsepower - TIO-360-C1A6D96
  - Sea Level and Altitude Performance - TIO-360-C1A6D97
  - Periodic Inspections100
  - 25-Hour Inspection (Engine)101
  - 50-Hour Inspection (Engine)101
  - Daily Pre-Flight101
  - 100-Hour Inspection103
  - 400-Hour Inspection104
  - Non-Scheduled Inspections104
  - Maintenance Procedures106
  - Dual Magnetos108
  - Ignition and Electrical System Maintenance108
- Ignition Harness and Wire Replacement108
- Single Magneto108
  - Timing Magnetos to Engine108
  - Ignition Wiring Diagram109
  - Timing Marks - 4 Cylinder - 1200 Series109
  - Internal Timing – Dual Magneto110
  - Retard Breaker110
- Air Intake Ducts and Filter111
  - Carburetor or Fuel Injector (Except Simmonds Injectors) Fuel Inlet Screen Assembly111
  - Fuel Grade and Limitations111
  - Fuel System Maintenance111
- Generator or Alternator Output111
- Idle Speed and Mixture Adjustment111
- Repair of Fuel Leaks111
- Cylinders112
  - Lubrication System Maintenance112
  - Non-Adjustable Oil Pressure Relief Valve112
- Oil Grades and Limitations112
- Oil Pressure Relief Valve112
- Oil Suction and Oil Pressure Screens112
  - Removal of Cylinder Assembly113
  - Removal of Hydraulic Tappet Sockets and Plunger Assemblies113
  - Removal of Piston from Connecting Rod113
  - Assembly of Cylinder and Related Parts114
  - Assembly of Hydraulic Tappet Plunger Assemblies114
  - Location of Shims between Cylinder Barrel and Hold-Down Pates (Where Applicable) and Sequence of Tightening Cylinder Base Hold-Down Nuts115
- Generator or Alternator Drive Belt Tension116
- Turbocharger Controls116
- Exhaust Bypass Valve (TIO-360-A Series)117
- Exhaust Bypass Valve (TIO-360-C1A6D)117
- Density Control Full Throttle Setting Limits118
- Exhaust Bypass Valve Open and Closed Setting119
- Timing Marks on Rotating Magnet119
- Ignition Wiring Diagram, Dual Magneto120
- Troubleshooting - Engine124
- Failure of Engine to Start124
- Failure of Engine to Idle Properly125
- Low Power and Uneven Running125
- High Oil Temperature126
- Failure of Engine to Develop Full Power126
- Low Oil Pressure126
- Rough Engine126
- Excessive Oil Consumption127
- Turbocharger Troubleshooting127
- Excessive Noise or Vibration127
- Engine will Not Deliver Rated Power127
- Critical Altitude Lower than Specified128
- Engine Surges or Smokes129
- High Deck Pressure (Compressor Discharge Pressure)129
- Installation and Storage130
- Oil and Fuel Line Connections132
- Inspection of Engine Mounting132
- Attaching Engine to Mounts132
- Preparation of Engine for Installation132
- Preparation of Carburetors and Fuel Injectors for Installation133
- Fuel Injector (Bendix)133
- Propeller Installation133
- Fuel Metering System Diagrams135
- Magneto Connections Diagram136
- Optional Oil Cooler Connections Diagrams137
- Installation Drawing - O-360-A, -B Series (Except A1C, -A1G)138
- Installation Drawing - O-360-A1C, IO-360-B1C139
- Installation Drawing - O-360-С, -D Series (Except -C2B, -C2D)140
- Installation Drawing - O-360-C1B, -C1D; HO-360-B1A, -B1B141
- Installation Drawing - O-360-A Series142
- Installation Drawing - IO-360-B1A143
- Installation Drawing - IO-360-B1B, -B1D144
- Installation Drawing - IO-360-C1A, -C1B, -D1A; HIO-360-C1A, -C1B145
- Installation Drawing - HIO-360-A1A146
- Installation Drawing - HIO-360-B1A, -B1B147
- Tables148
- Ground Run after Top Overhaul or Cylinder Change with New Rings151
- Flight Test after Top Overhaul or Cylinder Change with New Rings152
- Full Throttle HP at Altitude (Normally Aspirated Engines)153
- Centigrade - Fahrenheit Conversion Table154
- Inch Fractions Conversions155

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Lycoming IO-360 Series Specifications

General

Oil System	Wet Sump
Engine Type	Horizontally Opposed, 4-Cylinder, Air Cooled
Displacement	361 cubic inches (5.9 liters)
Bore	5.125 in (130.2 mm)
Stroke	4.375 inches (111.1 mm)
Cooling System	Air Cooled

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