TM 5-3805-261-23-1
ENGINE TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
Check engine cylinders. Loosen
If the problem still exists, go to Test 7.
8. Engine Misfires, Runs
injection lines, one at a time to find
Rough, or Stalls. -
which cylinder is misfiring.
Continued
CAUTION
When fuel injection lines are loosened or tightened on fuel injection nozzles,
two wrenches must be used. Nozzle must be held with wrench or damage to
nozzle may result.
7.
Check the valve clearance
If the valve clearance is not correct,
(WP 0274 00).
service or replace (WP 0274 00). If the
problem still exists, go to Test 8
8.
Check the push rods (WP 0273 00).
If a push rod is bent or broken, replace
(WP 0273 00). If the problem still exists,
go to Test 9.
9.
Check for worn valves or valve seats
If the valves or valve seats are worn,
(WP 0274 00).
cylinder head should be replaced (WP
0270 00).
1.
Check fuel lines and fittings for
Tighten or replace lines and fittings as
9.
Not Enough Power.
tightness and damage.
necessary (WP 0032 00, WP 0033 00, or
go to Test 2.
2.
Check the fuel pressure at the fuel
1.
If the fuel pressure is below 15 psi
injection pump housing. Fuel
(103 kPa), replace fuel filter element
pressure at high idle should be 15 psi
(103 kPa).
2.
If the fuel pressure is still low, replace
the fuel transfer pump (WP 0281 00).
3.
If the fuel pressure is correct, go to
Test 3.
