TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

  TM-9-2815-220-24 - Page 107 of 1563

TM 9-2815-220-24
ENGINE FAILS TO START AT NORMAL CRANKING SPEED
0008 00
MALFUNCTION 1:
(Continued)
Cylinders not firing (insufficient fuel or incomplete combustion).
PROBABLE CAUSE
CORRECTIVE ACTION
g. Electric fuel shut-off defective.
(1) Activate electrical shut-off and listen for
audible click.
If click is heard, shut-off is
good.
If not, replace fuel injection pump
(WP 0115, Fuel Injection Pump Assembly
Replacement).
h. Manual fuel shut-off defective.
(1) Check manual fuel shut-off (WP 0122,
Injection Pump Throttle Linkage and
Associated Parts Repair).
(WP 0123 for
2DR)
MALFUNCTION 2:
Cylinders partially firing (insufficient fuel).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Air in fuel system
(1) Bleed and purge system (WP 0020, Fuel
System Abnormal Conditions).
b. Water contaminated fuel.
(1) Check automatic drain system (WP 0020,
Fuel System Abnormal Conditions).
c. Cylinder too cold.
Applies in cold weather.
(1) Operate engine intake manifold heater to
assist starting (refer to pertinent vehicle
technical manual).
d. Induction air restricted or blocked.
(1) Inspect, repair and replace as required
(WP 0037, Induction Leak Test).
e. Low cylinder compression.
(1) Check cylinder compression (WP 0033,
Cylinder Compression Check).
f.
Injection pump timing improper.
(1) Check timing (WP 0036, Injection Pump
Timing).
END OF WORK PACKAGE
WP 0008 00-5 (6 blank)


Back to Top