Quantcast MALFUNCTION 2: Starter engages but engine does not crank

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TM 9-2815-220-24
ENGINE FAILS TO CRANK
0006 00
MALFUNCTION 2:
Starter engages but engine does not crank (audible solenoid action or starter gear engagement).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Starter engagement assembly damaged.
(1) Remove starter and inspect assembly.
Repair or replace starter (WP 0049, Starter
Motor Replacement).
b. Starter drive gear damaged.
(1) With starter removed, inspect engine starter
driven gear (WP 0157, Starter Drive
Mechanism Repair).
c. Starter failure.
(1) Replace starter assembly (WP 0049, Starter
Motor Replacement).
d. Engine hydrostatic lock.
(1) Investigate as follows:
PROCEDURE
OBSERVATION
ANALYSIS
With Master switch
"ON," hold fuel shut-
off (engine "stop")
switch in the off
position.
Press starter switch
Audibly note normal starter
Starter energized and
momentarily (about
engagement action.
engagement proper.
3 seconds).
Engine does not crank.
Fluid in cylinder chamber
causing hydrostatic lock.
Hydrostatic damage to engine
may exist.
PROBABLE CAUSE
CORRECTIVE ACTION
d. (Continued) Engine hydrostatic lock.
(2) Remove shroud and access covers for
access to injector nozzles (WP 0090, Engine
and Transmission Oil Cooler Access Covers
and Frames Replacement, and WP 0055,
Top Shroud and Mounting Brackets
Replacement).
(3) Remove all fuel injector nozzles (WP 0114,
Fuel Injector Nozzles and Holder Repair).
(4) Clear intake manifolds as follows:
PROCEDURE
OBSERVATION
ANALYSIS
Hold fuel shut-off
If knock occurs, cease cranking.
Connecting rod or piston
(engine "stop") switch,
damage exists.
and crank engine
Note fluid blown from cylinders.
Combustion chamber clear.
several revolutions
(5-10 seconds).
WP 0006 00-3

 


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