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TM 5-4320-304-14
TM 08922A-14/1
6-2. REPAIR CYLINDER HEAD AND VALVE ASSEMBLY
This task covers:
a. Cleaning/Inspection
c. Test
b. Repair
INITIAL SETUP
Tools
Shop set, automotive repair,
field maintenance, basic
Clamping holder to grind valve-valve seat
604
581
00
Valve reseating tool, 42.5 mm dia
612
103
00
Guiding pin, 7 mm dia
(valve reseating tool)
612
104
00
Hand reamer, 7 mm dia
(valve guide)
612
107
00
Press-in mandrel, 7 mm dia
(valve guide)
669
347
00
Handle for valve reseating tool
670
323
00
Materials/Parts
Diesel fuel oil (Item 2, Appendix E)
Lapping and grinding compound, 600 grit
(Item 5, Appendix E)
Equipment
Condition
Para
Equipment Condition
5-5
Injector removed from cylinder
head.
5-7
Cylinder head removed from
engine. Rocker and valves re-
moved from cylinder head.
General Safety Instructions
Well-ventilated area required.
CLEANING/lNSPECTION:
1
2
6-2
Death or serious injury could occur if fuel is not handled
carefully. Use in a well-ventilated area away from open
flame, arcing equipment, ignition sources, heaters, or exces-
sive heat. Always store fuel in proper, marked containers.
DO NOT SMOKE.
Death or serious injury could occur if. compressed air is
directed against the skin.
Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced
to 30 psi (2.06 bar) or less. When working with com-
pressed air always use chip guards, eye protection, and other
personal protective equipment.
Clean cylinder head with a clean cloth dampened with diesel fuel oil. Use wire brush where
necessary. Dry with compressed air.
Inspect cylinder head for cracks, rust, corrosion, and excessive heat damage. Inspect for accumu-
lated carbon.
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