TM 9-6115-730-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
MALFUNCTION
Piston Rings Defective/Excessive Blowby.
CORRECTIVE ACTION
STEP 1.
If piston ring wear or damage is suspected, replace the engine (WP 0096).
STEP 2.
Verify the problem has been resolved.
SYMPTOM
41.
Excessive Valve Lash.
MALFUNCTION
Lack of Lubrication to Rocker Shaft Assembly.
CORRECTIVE ACTION
Remove valve cover (WP 0100) and inspect for adequate engine oil at rocker shaft assembly
and valves. If rocker shaft assembly or valves lack engine oil, troubleshoot low engine oil
pressure (SYMPTOM 45).
MALFUNCTION
Valve Lash Adjustment Incorrect.
CORRECTIVE ACTION
STEP 1.
Visually inspect rocker shaft and valve components for excessive wear. Replace
worn components as required (WP 0119).
STEP 2.
If rocker shaft and valve components are not excessively worn, adjust valve lash
STEP 3.
Verify the problem has been resolved.
SYMPTOM
42.
Exhaust Temperature is Too High.
MALFUNCTION
Air Inlet and Exhaust Malfunctions.
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Inspect for air inlet for restrictions or leaks. Clear restrictions and repair leaks
STEP 3.
Inspect for exhaust restrictions. Inspect for leaks between exhaust manifold and
turbocharger. Clear restrictions and repair leaks (WP 0115).
STEP 4.
Verify the problem has been resolved.
0011-55
