ENGINE TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)
TEST OR INSPECTION
LITTLE VALVE CLEARANCE.
Check the valve seat and face of valve.
If the valve seat or face of valve is worn--the cylinder head should be reconditioned. Contact General
COOLANT IN THE LUBRICATION OIL.
Check the oil cooler core.
If the core is damaged or defective--replace. Refer to paragraph 3-17.
Check the cylinder head gasket.
If the cylinder head gasket is damaged or defective--replace. Refer to paragraph 3-9.
Check the cylinder head.
If the cylinder head is cracked or defective--replace. Refer to paragraph 3-9.
Check the cylinder block.
If the cylinder block is damaged or defective--contact General Support.
Check the seals of the cylinder lines.
If you suspect a problem with the seals--contact General Support.
TOO MUCH BLACK OR GRAY SMOKE.
Check the fuel injection nozzles. Refer to Test procedure, paragraph 3-24.
If a fuel injection nozzle is bad--replace. Refer to paragraph 3-24.
Check the fuel injection timing.
If the fuel injection timing is not correct--adjust. Refer to paragraph 3-24.