Internal leaks (Cont)

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Table 3-63. Anchor Winch Engine High Lubricating Oil Consumption Troubleshooting

TM-55-1905-220-14-3 Landing Craft Unit LCU 1671-1679 (1905-01-009-1056) Manual

Table 3-64. Anchor Winch Engine Excessive Crankcase Pressure Troubleshooting

TM 55-1905-220-14-3

Table 3-63. Anchor Winch Engine High Lubricating

Oil Consumption Troubleshooting (Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Internal leaks (Cont).

Step 2.

Check oil cooler core for leaking.

Inspect the engine coolant for lubricating oil contamination; if contaminated, replace the

oil cooler core. Then use a good grade of cooling system cleaner to remove the oil from

the cooling system. Refer to paragraph 3-169.

Oil control at cylinder.

Step 1.

Check for oil control rings that are worn, broken or improperly installed.

Replace the oil control rings. Refer to paragraph 3-170.

Step 2.

Check piston pin retainer for looseness.

Replace the piston pin retainer and defective parts. Refer to paragraph 3-170.

Step 3.

Check for scored liners, pistons or oil rings.

Remove and replace the defective parts.

Step 4.

Check piston and rod alignment.

Check the crankshaft thrust washers for wear. Replace worn and defective parts. Refer

to paragraph 3-170.

Step 5.

Check for excessive oil in crankcase.

Fill the crankcase to the proper level only.

3-195