Poor Acceleration and/or Lack of Power. (Cont)

TM 5-2410-233-23

TROUBLESHOOTING PROCEDURES - CONTINUED

0006 00

Table 1. Engine Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. If pressures are not equal,

Poor Acceleration and/or Lack of Power -

remove blockage from nozzle-

Continued.

to-pump fuel line or replace

nozzle for suspect cylinder

(WP 0037 00).

8. Check fuel injection timing Adjust timing (WP 0053 00).

(WP 0053 00).

9. Inspect for full governor Adjust governor linkage travel

linkage travel.

(WP 0054 00).

10. Check fuel pressure at fuel 1. If fuel pressure is below 15 psi

injector

housing

inlet.

(105 kPa), replace primary fuel

Pressure must be at least 15

filter (WP 0053 00).

psi (105 kPa).

2. If fuel pressure is still below 15

psi (105 kPa), replace fuel

transfer pump (WP 0039 00).

11. Check valve clearance.

Adjust valve clearance (WP 0017

00).

12. There may be internal failure Replace turbocharger (WP 0045

of turbocharger.

01).

Clean air line with compressed air

Engine Speed Unstable or Surges at All 1. Remove and inspect fuel ratio

air line from between

or sturdy wire. Replace line if

Speeds.

turbocharger and governor

found to be damaged (WP 0050

housing.

00).

2. Disconnect fuel lines between 1. Clean lines with compressed

tank shutoff valve and

air or sturdy wire. Reconnect

primary fuel filter (WP 0050

fuel lines (WP 0050 00).

00) and check for clogs and 2. Replace fuel filters (WP 0055

obstructions.

00 and 0056 00).

3. Prime fuel system (WP 0038

00).

3. Inspect fuel lines and 1. If leak is at a connection,

connections

for

leaks,

tighten connection.

obstructions and damage.

2. Replace damaged fuel lines

(WP 0050 00).

4. Inspect governor linkage for If linkage does not operate

proper

operation

and properly or is not correctly

adjustment.

adjusted,

make

necessary

adjustment (WP 0054 00).

1. Perform cylinder cutout test Replace nozzle for suspect

Excessive Engine Vibration.

(WP 0040 00).

cylinder (WP 0037 00).

0006 00-6