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 84 of 1258
TM 9-2320-280-34
3-11.
LEFT ROCKER ARM COVER MAINTENANCE
This task covers:
a.
Removal
c.
Installation
b.
Repair
INITIAL SETUP:
Tools
Equipment Condition
General mechanic's tool kit:
Fuel injection lines removed (para.
4-4).
automotive (Appendix G, Item 1)
Left fuel injection lines bracket removed
(TM 9-2320-280-20).
Materials/Parts
RTV sealant (Appendix B, Item 43)
Maintenance Level
Valve cover gasket (Appendix E, Item 37)
Direct support
Manual References
TM 9-2320-280-20
TM 9-2815-237-34
TM 9-2815-237-34P
a.
Removal
NOTE
In some cases, flanged head fasteners may be present instead of standard fasteners and
washers.
In all cases, washers should be used when replacing a flanged head fastener with
a standard fastener.
1.
Remove nut (2), washer (1), clamp (8), and fuel drain back tube (9) from rocker arm cover stud (3).
2.
Remove a combination of five capscrews (5), three studs (3), eight washers (6), and rocker arm cover
(4) from cylinder head (7).
b.
Repair
For rocker arm cover repair procedures, refer to TM 9-2815-237-34.
c.
Installation
NOTE
When applying RTV sealant, keep sealant out of capscrew holes.
During installation, RTV sealant or new gasket is approved.
If applying RTV sealant, perform step 1.
If installing new gasket, RTV sealant may be applied with the gasket, but is not
required.
1.
Apply a .06 in.
(1.5 mm) bead of RTV sealant around rocker arm cover (4) sealing surface.
2.
Install rocker arm cover (4) on cylinder head (7) with eight washers (6), five capscrews (5), and three
studs (3) following assembly diagram.
3.
Tighten capscrews (5) and studs (3) to 13-25 lb-ft (18-34 Nm).
4.
Install fuel drain back tube (9) and clamp (8) on stud (3) with washer (1) and nut (2).
3-24
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