Table 3-9. Propulsion Engine - Low or High Exhaust Valve Opening Pressure Troubleshooting (Cont).

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Table 3-8. Propulsion Engine - Abnormal Engine Coolant Operating Temperature Troubleshooting-cont.

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

Table 3-10. Marine Gear Troubleshooting

TM 55-1905-219-14-3

Table 3-9. Propulsion Engine - Low or High Exhaust Valve Opening

Pressure Troubleshooting (Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Low exhaust valve opening pressure (Cont)

Step 4.

Check for worn valve or valve locks.

Replace the valve or valve lock. Refer to para-

graph 3-33.

Step 5.

Check for worn or broken valve spring.

Replace the spring. Check the valve cage and

valve stop for wear; replace them if necessary.

Refer to paragraph 3-33.

Step 6.

Check for dirt or foreign material in injector.

Replace the injector. Refer to paragraph 3-15.

Step 7.

Check for worn valve spring stop seat.

Replace the valve spring stop seat. Refer to

paragraph 3-34.

2. High valve opening pressure.

Step 1.

Check for carbon or foreign material in injector

spray tip.

Replace injector. Refer to paragraph 3-15.

3-57