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 TM 55-1905-220-14-3
Table 3-26.
Generator Engine - High Lubricating Oil Consumption
Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3.
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 3-96.
Step 2.
Check piston pin retainer for looseness.
Replace the piston pin retainer and defective parts. Refer to paragraph 3-96.
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 para- graph 3-96.
Step 5.
Check for excessive oil in crankcase.
Fill the crankcase to the proper level only.
Table 3-27.
Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
Cylinder blow-by.
Step 1.
Check cylinder head gasket for leaks.
Check the compression pressure and, if only one cylinder has low compression,
remove the cylinder head and replace the head gaskets. Refer to para- graph 3-
89.
3-102
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