TM 5-4320-302-14
6-4. ADJUSTMENT OF FUEL INJECTION TIMING (CONT)
Location/Item
Action
Remarks
ADJUSTMENT
WARNING
Severe injury may result from contact with rotating engine parts, V-belts, or fan. Shut
off the engine when it is necessary to inspect, service, or perform maintenance on
any moving parts.
NOTE
Use the following procedure to determine top dead center TDC if it has not been
marked on flywheel or V-belt pulley. Normal running direction of engine, flywheel and
crankshaft is counterclockwise viewing flywheel from pump end. V-belt pulley also
runs counterclockwise viewing from V-belt guard end.
1.
Flywheel or
Rotate crankshaft by rotating flywheel or V-belt pulley counter-
V-belt pulley
clockwise until valve stems and rocker arms overlap. The ex-
haust valve should be closing and its valve stem rising. The inlet
valve should be opening and its valve stem going down.
6-6
