Air from blower or air box - TM-55-1905-220-14-30115

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Table 3-27. Generator Engine - Excessive Crankcase Pressure Troubleshooting

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

Table 3-28. Generator Engine - Low Oil Pressure - Troubleshooting.

TM 55-1905-220-14-3

Table 3-27.

Generator Engine - Excessive Crankcase Pressure

Troubleshooting (Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Air from blower or air box.

Step 1.

Check for damaged blower-to-block gasket.

Replace the blower-to-block gasket. Refer to paragraph 3-68.

Step 2.

Check cylinder block end plate gasket for leaking.

Replace the end plate gasket. Refer to paragraph 3-98.

Excessive exhaust back pressure.

Step 1.

Check for excessive muffler resistance.

Check the exhaust back pressure and repair or replace the muffler if an obstruction

is found. Refer to Direct Support Maintenance.

Step 2.

Check for faulty exhaust piping.

Check the exhaust back pressure. Refer to Direct Support Maintenance.

3-104