Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting or Will Not Start. (CONTINUED)

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Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting or Will Not Start. (CONTINUED)

TM-55-1905-219-14-8 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

Table 4-2A. Portable Fire Pump (PE-250) - Running Troubles

TM 55-1905-219-14-8

4-5. GENERAL (Continued).

Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting

or Will Not Start (Continued).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

5. Poor compression.

Step 1.

Loose spark plug.

Torque tighten spark plug to 20 ft-lb (27.lNm).

Step 2.

Cylinder head loose.

Torque tighten cylinder head nuts to 16 ft-lb

(21.7 Nm).

Step 3.

Blown cylinder head gasket.

Replace gasket.

Step 4

Piston rings broken.

Replace engine.

Step 5.

Piston and cylinder badly worn.

Replace engine.

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