TM-9-2320-387-24-2
TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 2
DECEMBER 1997
CHANGE 1
TM-9-2320-387-24-2 - Page 540 of 1555
TM 9-2320-387-24-2
15-4. LEFT CYLINDER HEAD REPAIR
This task covers:
a.
Removal
b.
Repair
c.
Installation
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Gasket (Appendix G, Item 74)
Antiseize compound (Appendix C, Item 16)
Pipe sealing compound (Appendix C, Item 62)
Personnel
Required
One mechanic
One assistant
Manual
References
TM S-2320-387-24P
TM 9-2815-237-34
Equipment Condition
l
Fuel drain-back tube removed (pax-a. 3-38).
l
Alternator/power steering mounting bracket
removed (para. 4-3).
Equipment
Condition
(Cont’d)
l
Left
exhaust manifold removed (para. 3-57).
l
I_.& intake manifold removed (para. 15-16).
l
Water crossover removed (para. 3-79).
l
Rocker arm shafts and pushrods removed
(para. 15-8).
l
Fuel injection return hoses removed (para. 3-37).
l
Fuel injection nozzles removed (para. 16-3).
l
Glow plugs removed (para. 3-391.
l
Oil pressure sending unit removed (para. 4-29).
General Safety Instructions
Cylinder head must be supported during removal
and installation.
Maintenance Level
Direct support
WARNING
Cylinder head must be supported during removal and installation.
Failure to support cylinder head may cause injury to personnel or
damage to equipment.
1
a. Removal
]
1.
Disconnect harness lead 33B (5) from engine temperature sending unit (4).
CAUTION
Cover or plug all hoses, connections, and openings immediately
after disconnection to prevent contamination. Remove all covers or
plugs prior to connection.
2.
Remove seventeen capscrews (2) from cylinder head (11 and cylinder block (6).
3.
Remove cylinder head (1) and gasket (3) from cylinder block (6). Discard gasket (3).
4.
For cylinder head (1) and valve repair procedures, notify general support (TM g-2815-237-34).
(1
1.
Extract broken portion of bolt (8) from cylinder head (1).
NOTE
If threaded hole cannot be repaired, the left cylinder head can be
interchanged with the right cylinder head.
2.
If threads are unserviceable, use threaded inserts to repair threaded hole (7) in cylinder head (1).
15-8
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