TM 5-3805-261-34ENGINE TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONp.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 Support.q.COOLANT IN THE LUBRICATION OIL.Step 1.Check the oil cooler core.If the core is damaged or defective--replace. Refer to paragraph 3-17.Step 2.Check the cylinder head gasket.If the cylinder head gasket is damaged or defective--replace. Refer to paragraph 3-9.Step 3.Check the cylinder head.If the cylinder head is cracked or defective--replace. Refer to paragraph 3-9.Step 4.Check the cylinder block.If the cylinder block is damaged or defective--contact General Support.Step 5.Check the seals of the cylinder lines.If you suspect a problem with the seals--contact General Support.r.TOO MUCH BLACK OR GRAY SMOKE.Step 1.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.Step 2.Check the fuel injection timing.If the fuel injection timing is not correct--adjust. Refer to paragraph 3-24.3-12
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