REPLACEMENT - TM-55-1905-223-24-50165

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FIGURE 2-51. Exhaust Manifold

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Replace/Repair Cylinder Head Group. (FIGURE 2-53)

TM 55-1905-223-24-5

REPLACEMENT

a. Install drain cock (8).

b. Position preformed packing (1) and gaskets (2) on manifold (7).

c. Install exhaust manifold (7) and secure with twelve capscrews (5) and

d. Tighten the capscrews in two stages in the sequence shown (FIGURE 2-52) to

the following torque values:

(1)

Tighten to 35 ft-lb.

(2)

Tighten to 60 ft-lb.

e. Remove lifting sling.

f. Install a new turbocharger mounting gasket on the turbocharger. Refer to

g. Replace preformed packing (4, FIGURE 2-51) and connect water transfer

connection (3) to engine.

h. Replace oil bypass filter assembly. Refer to paragraph 2-31 .

i. Replace water filter assembly. Refer to paragraph 2-23 .

j. Replace thermostat housing. Refer to paragraph 2-24 .

k. Replace turbocharger. Refer to paragraph 2-26 .

l. Fill system with coolant. Refer to TB 55-1900-207-24.

m. Operate the engine to check for leaks and engine operation.

n. Remove "Out of Service-Do Not Operate" tag.

FIGURE 2-52. Exhaust Manifold Torque Sequence .

2-145