Replace/Repair Exhaust Manifold Group

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FIGURE 2-54. Capscrew Tightening Sequence.

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

FIGURE 2-55. Exhaust Manifold Group.

TM 55-1905-220-24-1

2-33. Replace/Repair Exhaust Manifold Group. (FIG. 2-55)

This task covers:

a. Removal

b. Repair

c. Replacement

INITIAL SETUP :

Tools

Equipment Condition

Engine shutdown and cooled o 120 (50 ),

Tool kit, general mechanic's rail

and marine diesel engine

coolant drained; (TM 55-1905-223-10).

Intake manifold group removed,

Lifting sling P/N 3375958

Torque wrench kit P/N 3377216

Turbocharger group removed,

Materials/Parts

Anti-seize compound, Item 5, Appendix C

Gasket P/N 3037821

REMOVAL

a. Remove exhaust manifold group.

WARNING

Due to the weight of the exhaust manifold, a lifting sling should be used to prevent

personal injury or equipment damage.

b. Attach lifting sling to manifold assembly (1) so that the cable/chain is just barely taut.

c. Remove the thirty two hexagon head capscrews (4) and flat washers (3) attaching exhaust manifold

group (1) to the cylinder heads.

CAUTION

The gaskets between block and heads may stick. To prevent damage to the manifolds

or head, apply a slight prying pressure between head and manifold until manifold is free

of block.

Upon removal and replacement of this component, block, cover, or otherwise protect all

openings to prevent foreign matter from entering and damaging the system.

d. Lift the exhaust manifold group clear of the engine.

Change 1

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