TM 5-3805-261-23-1
ENGINE TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
Check the valve springs and locks.
If the valve springs or locks are damaged
11. Clicking Noise in Rocker
Arm Cover.
or defective, replace (WP 0274 00). If the
problem still exists, go to Test 2.
2.
Check the lubrication in the rocker
1.
If the oil flow is very low, check oil
arm cover. There must be a strong
pressure.
flow of oil at the high RPM and a
2.
If oil pressure is low, replace engine
small flow at a low RPM.
oil pump (WP 0276 00).
3.
If oil pressure is correct, go to Test 3.
3.
Check the valve clearance.
1.
If the valve clearance is too much,
adjust (WP 0273 00).
2.
If the valve clearance is correct, go to
Test 4.
4.
Check the valves.
1.
If the valves are damaged or
defective, replace valves (WP 0274
00).
2.
If the valve are not damaged, replace
cylinder head (WP 0270 00).
Check for connecting rod and bearing
If noise is heard, replace engine (WP 0267
12. Mechanical Noise in
noise.
Engine.
00).
1.
Check the fuel injection nozzles.
If the fuel injection nozzles are damaged
13. Fuel Consumption Is Too
High.
or defective, service or replace (WP 0278
00). If the problem still exists, go to Test 2.
2.
Inspect fuel system for leaks.
Replace defective fuel lines and bleed fuel
lines (WP 0035 00, WP 0041 00, and WP
1.
Check the valve springs.
If the valve springs are damaged or
14. Loud Noise from Valves or
Valve Drive Components.
defective, replace (WP 0274 00). If the
problem still exists, go to Test 2.
2.
Check the valves.
If the valves are damaged or defective,
replace (WP 0274 00).
1.
Check the valve clearance.
If there is too much valve clearance,
15. Limited Rocker Arm
Movement or Too Much
adjust (WP 0274 00). If the problem still
Valve Clearance.
exists, go to Test 2.
2.
Check the face of the rocker arms
If a rocker arm is worn, damaged, or
contacting valve.
defective, replace (WP 0273 00). If the
problem still exists, go to Test 3.
3.
Check the valve stems.
If a valve stem is worn, damaged, or
defective, replace (WP 0274 00). If the
problem still exists, go to Test 4.
4.
Check the push rods.
If the push rods are worn, damaged, or
defective, replace (WP 0273 00). If the
problem still exists, go to Test 5.
