TM 9-6115-664-13&P
5-9. CYLINDER HEAD MAINTENANCE
This task covers removal, inspection, repair, and installation
INITIAL SETUP
Tools:
Equipment Condition:
Shop Equipment, Automotive Maintenance
Engine Exhaust Bellows Removed (Para. 4-42)
and Repair (Item 4, App. B)
Engine Air Filter Removed (Para. 4-43)
Rocker Cover Removed (Para. 4-47)
Parts/Materials:
Fuel Injector Removed (Para. 4-48)
Loctite Adhesive (Item 1, App. E)
Mechanical Fuel Pump Removed (Para. 4-55)
Cleaning Solvent, PD-680 (Item 9, App. E)
Grease (Item 5, App. E)
A. REMOVAL.
1. Disconnect oil line (17, Figure 5-3) from cylinder
head (7) by removing banjo bolt (15) and washers
(16). Disconnect crankcase pressure line.
2. Turn engine flywheel to top dead center (TDC)
position, matching marks on the flywheel and
crankcase.
3. Loosen nut (6) on inlet rocker arm (2).
4. Remove retaining washers (1) from rocker bolt (4).
Press rocker bolt out of cylinder head (7) and
remove rocker arms (2, 3).
NOTE
Adjusting screw (5), nut (6), and
rocker arm (2 or 3) are supplied as a
set. Replace entire assembly if
required.
WARNING
Spring
plates
are
under
spring
pressure and can act as projectiles
when released. Use caution when
removing valve cotters to prevent
injury. Eye protection is required.
Figure 5-3. Cylinder Head
(Sheet 1 of 7)
5-24
