ENGINE DOES NOT DEVELOP FULL POWER. (Cont) -726250139

TM 9-2320-364-34-1

Allow engine to cool before performing troubleshooting maintenance. If necessary use insulated pads

and gloves. Hot engine components will burn and cause injury to personnel.

VALVE CLEARANCE, ENGINE BRAKE,

INJECTOR TIMING AND INJECTOR

CALIBRATION (DDEC III/IV ONLY)

CHECK

Check exhaust valve clearance, engine

brake retarder adjustment, and injector

timing, and injector calibration (DDEC III/IV

only) (Para 3-2).

(1) If engine exhaust valve clearance,

engine brake retarder adjustment,

injector timing and injector

calibration (DDEC III/IV only) are

not within specifications, perform

engine tune-up, (Para 3-2 and

Para 4-2).

(2) If engine exhaust valve

clearance, engine brake retarder

adjustment, injector timing and

injector calibration (DDEC III/IV

only) are within specifications,

go to Step 9 of this Fault.

CYLINDER LINER PORTS INSPECTION

(1) Remove 14 screws, six engine air box

covers and gaskets. Discard gaskets.

(2) Check for clogged cylinder liner air

inlet ports.

(3) (a) If cylinder liner air inlet ports are

clogged, perform Step (4) below

and replace engine, (Para 3-4).

(b) If cylinder liner air inlet ports are

not clogged, perform Step (4)

below and go to Step 10 of this

Fault.

(4) Install six gaskets and engine air box

covers with 14 screws.