Replace/Repair Handhole Cover Group

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FIGURE 2-58. Cylinder Head Tightening Sequence.

TM-55-1905-223-24-1 Main Propulsion Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 2-59. Handhole Cover Group.

TM 55-1905-220-24-1

2-35. Replace/Repair Handhole Cover Group. (FIG. 2-59)

This task covers:

a. Removal

b. Repair

c. Replacement

INITIAL SETUP :

Tools

Equipment Condition

Tool kit, general mechanic's rail

Engine shutdown. TM 55-1905-223-10.

and marine diesel engine

Torque wrench kit P/N 3377216

Materials/Parts

Handhole gaskets P/N 3175856

Preformed packing P/N 108172

NOTE

There are a total of eight handhole covers on the engine (four each side); each one

exposes two connecting rod end caps. The left rear handhole cover contains the

oil fill tube and dipstick. The two covers located second from the rear include the

crankcase ventilation tubes. The remaining five handhole covers are blank access

plates. All use the same type gasket.

REMOVAL

a. Remove blank handhole covers.

(1)

Remove the water pump group (paragraph 2-23) and fuel pump group (paragraph 2-29). (Front

covers only.)

(2)

Remove eleven hexagon head capscrews (23), lockwashers (24), one hexagon head capscrew

(19), and lockwasher (21).

(3)

Remove handhole cover (20) and handhole gasket (22). Discard gasket.

b. Remove handhole cover with dipstick and oil filler tube (15).

(1)

Remove lube oil filter assembly (paragraph 2-24).

(2)

Remove liquid level gage rod (11). If required, remove filler opening cap (14).

2-136