Air from blower or air box

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

TM-55-1905-219-14-3 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

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

TM 55-1905-219-14-3

Table 3-27. Generator Engine - Excessive Crankcase Pressure

Troubleshooting (Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

3. 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.

4. 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.

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