TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 67 of 1258
3 - 4 . LEFT CYLINDER HEAD REPAIR (Cont’d)
TM 9-2320-280-34
3 - 1 0
Change 1
c. Installation
CAUTION
Head gasket must be used without a sealer. Sealant may cause
leaks or damage to engine.
1.
Install head gasket (3) over dowel pins (5) on cylinder block (6).
NOTE
Use of cylinder head lifting device is optional.
1.1. Install cylinder head lifting device on center of cylinder head (1) with two washers (2.2) and
capscrews (2.1).
2.
Apply pipe sealing compound to threads of seventeen capscrews (2).
3.
Install cylinder head (1) on cylinder block (6).
3.1
Remove two capscrews (2.1), washers (2.2), and cylinder head lifting device from center of cylinder
head (1), if installed.
CAUTION
Failure to tighten cylinder head capscrews in proper torque
sequence may result in leaks or damage to cylinder head.
3.2. Install seventeen capscrews (2) and tighten to 20 lb-ft (27 N
•
m) following torque sequence.
4.
Tighten seventeen capscrews (2) to 50 lb-ft (68 N
•
m) following torque sequence.
NOTE
Mark capscrews after torque turn to prevent retightening.
5.
Tighten seventeen capscrews (2) an additional 90° following torque sequence and mark capscrews (2).
6.
Apply antiseize compound to two leads 3A (10) and 58A (9) and install on cylinder head (1) with
capscrew (8).
7.
Connect harness lead 33B (7) to engine temperature sending unit (4).
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