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 TM 55-1905-223-24-1
2-34. Replace/Repair Cylinder Head Group.
This task covers:
a. Removal
b. Repair
c. Replacement
INITIAL SETUP :
Tools
Equipment Condition
Tool kit, general mechanic's rail
Engine shutdown and coole to 120
d
F
(50 ). TM 55-1905-223-10.
and marine diesel engines
C
Coolant drained. TM 55-1905-223-10.
Torque wrench kit P/N 3377216
Rocker lever cover and assembly
Lifting sling P/N 3375958
removed, para. 2-30.
Air intake manifold group removed,
Fuel manifold loosened, para. 3-20.
Exhaust manifold loosened, para. 2-33.
Materials/Parts
Cylinder head gasket P/N 3022340
Preformed packing P/N 207448, 205852,
205855, 205858
Rust preventive lubricant, Item 9,
Diesel engine cylinder head P/N 3021692
REMOVAL
CAUTION
The cylinder head capscrews and washers are special parts. Do not damage parts
by throwing them against each other or in a container. Damage to the parts could
result in engine failure.
a. Remove six hexagon head capscrews (2, FIG. 2-56), and flat washers (1).
WARNING
The cylinder head is heavy and could easily be dropped causing injury to
personnel or damage to equipment.
b. Attach a lifting sling to the cylinder head (FIG. 2-57).
c. Lift diesel engine cylinder head (3, FIG. 2-56) straight away from the block to clear the dowels.
d. Remove and discard gasket (7) and preformed packings (4, 5, 6 and 8).
Change 1
2-132
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