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TM 10-3930-664-24
4-8. CYLINDER HEAD ASSEMBLY (WITH VALVES) REPAIR
This task covers: Disassembly, Cleaning, Inspection, Repair, and Assembly
INITIAL SETUP:
Tools and Test Equipment:
Equipment Condition:
General Mechanics Tool Kit (1, App. E)
Cylinder head assembly removed
Nylon Brush (38, App. E)
(para. 3-8)
Caliper Set, Outside (13, App. E)
Caliper, Inside (12, App. E)
Depth Gage (20, App. E)
Valve Grinding Kit (50, App. E)
Soft Head Hammer (23, App. E)
Materials / Parts:
Lubricating Oil (16, App. C)
Crocus Cloth (6, App. C)
Valve Lapping Compound (30, App. C)
Valve Stem Seal, Item 7 (8 ea.)
A. DISASSEMBLY
1.
Mark valves (1, 2) with a grease pencil to identify
their position.
2.
Compress valve spring (3) and remove collets
(4) from cylinder head (5). Release valve spring
and remove retainer (6) and spring.
3.
Remove valves (1, 2) and place in a labeled rack
for identification.
4.
Remove valve system seals (7) from valve
guides and discard.
B. CLEANING
1.
Ensure all gasket material is Removed from
cylinder head assembly and cylinder block
mating surfaces.
2.
Clean carbon from injector nozzle seats using a
nylon brush.
4-10
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