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ARMY TM 9-2805-256-14
AIR FORCE TO 38G2-102-2
NAVY NAVFAC P-8-611-14E
Table 5-1. Direct Support Troubleshooting Procedures (cont).
Malfunction
Test or Inspection
Corrective Action
Step 8. Check transformer resistance between white wire and spring on end of high voltage cable.
If resistance is not between 1400 and 2500 ohms, replace transformer (para. 5-11).
Step 9. Check coil resistance between pins A and B of low voltage connector on engine.
If resistance is not between 289 and 329 ohms replace coil (para. 5-20).
Paragraph
5 - 6
5 - 7
5 -8
5 - 9
5 - 1 0
5-11
5 - 12
5 - 13
5 - 14
5 - 15
5 - 16
5 - 1 7
5 - 18
5 - 19
5 - 20
5-21
5 - 22
5 - 23
5 - 24
Section Ill. DIRECT SUPPORT MAINTENANCE PROCEDURE
P a g e
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... .5-5
Oil Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-6
Governor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-8
Ignition Timing (Breaker Point Ignition). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-16
Ignition Control Unit (Breakerless Ignition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-18
Transformer (Breakerless Ignition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-20
Ignition Module (Breakerless Ignition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-22
Low Voltage CabIe (Breakerless Ignition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-24
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26
Rockers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-31
Valve Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-34
lntake and Exhaust Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-36
Piston and Connecting Rod Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-38
Rotating Magnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-43
Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-44
Flywheel Side Oil Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-46
Noise Suppression Filter (Breaker Point Ignition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48
Crankshaft Side Oil Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-50
Compression Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-52
5-6. General. This section contains direct support maintenance procedures as authorized by the MAC in
Appendix B of this manual. Table 5-2 located at the end of this section contains a list of engine components and
their wear limits. Any item that does not meet the specified measurements must be replaced. Refer to Appendix
E for torque values. All maintenance procedures require only one person to perform.
5 -5
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