Quantcast MALFUNCTION 3: Grinding or squeaking sound.

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TM 9-2815-220-24
ENGINE NOISY OPERATION
0015 00
MALFUNCTION 2: (Continued)
Diesel knock ("ping," usually at low-idle speed).
PROBABLE CAUSE
CORRECTIVE ACTION
b. Return fuel line disconnected or restricted.
(1) Inspect fuel line (WP 0080, Fuel Injection
Nozzle Return Hoses and Related Parts
Replacement).
c. Engine fuel-injection pump.
(1) Check timing (WP 0036, Injection Pump
Timing).
MALFUNCTION 3:
Grinding or squeaking sound.
PROBABLE CAUSE
CORRECTIVE ACTION
a. Cooling fan interference (fan housing vane
(1) Inspect fan for proper clearance (WP 0053,
or foreign material).
Cooling Fan Inspection). Repair or replace
damaged parts.
b. Engine accessories.
(1) Replace damaged accessory.
c. Worn or damaged gears, camshaft, rocker
(1) Check for damage (WP 0178, Disassembly/
arm bearing or bushings.
Assembly Procedure Sequence for the
AVDS 1790-2 Engine).
END OF WORK PACKAGE
WP 0015 00-4

 


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