Replace/Repair Cylinder Head Group. (FIGURES 2-40 and 2-41)

TM 55-1905-223-24-4

2-40. Replace/Repair Cylinder Head Group. (FIGURES 2-40 and 2-41)

This task covers:

a. Removal,

b. Repair,

c. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's

Power supply disconnected and tagged

rail and marine diesel engines,

"Out of Service".

Starter motor cable disconnected.

Torque wrench kit P/N 3377216

Fuel supply shut off. Fuel drained.

Lifting sling P/N 3375958

Coolant drained.

Combination wrench set, metric

Air cleaner removed (para. 2-25).

10mm thru 24mm,

Turbocharger removed (para. 2-26).

5120-01-046-4979

Fuel plumbing removed (para. 2-30).

Valve covers removed (para. 2-37).

Materials/Parts

Rocker levers removed (para. 2-38).

Fuel injectors removed (para. 2-39).

Gasket P/N 3907054

Warning tags, Item 21, Appendix C

Coolant, Item 4, Appendix C

WARNING

This procedure requires two soldiers.

REMOVAL

a. Remove the remaining 14 head bolts (1, 2, FIGURE 2-41) working from the center to the ends of the cylinder

head.

b. Remove cylinder head (3). Weight 80 lb (36 kg).

Remove cylinder head gasket (4) from the block. Discard gasket.

REPLACEMENT

CAUTION

Make sure the cylinder head and block surface are clean and not nicked or gouged.

Change 1

2-102