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TM 5-4320-308-13
5-2.
REPAIR CYLINDER HEAD AND VALVE ASSEMBLY
This task covers:
a. Cleaning/Inspection
c.
Test
b.
Repair
INITIAL SETUP
Tools
Materials/Parts
Shop set, automotive repair,
Diesel fuel oil (Item 2, Appendix E)
field maintenance, basic
Lapping and grinding compound, 600 grit
Clamping holder to grind valve-valve seat
(Item 5, Appendix E)
604 581 00
Valve reseating tool, 42.5 mm dia
612 103 00
Equipment
Condition
Guiding pin, 7 mm dia
Para
Equipment Condition
(valve reseating tool)
612 104 00
4-14
Injector removed from cylinder
Hand reamer, 7 mm dia
head.
(valve guide)
612 107 00
4-17
Cylinder head removed from
engine. Rocker and valves re-
Press-in mandrel, 7 mm dia
moved from cylinder head.
(valve guide)
669 347 00
General Safety Instructions
Handle for valve reseating tool
670 323 00
Well-ventilated area required.
CLEANING/INSPECTION:
WARNING
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 excessive 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 compressed air always
use chip guards, eye protection, and other personal protective equipment.
1
Clean cylinder head with a clean cloth dampened with diesel fuel oil. Use wire brush where necessary.
Dry with compressed air.
2
Inspect cylinder head for cracks, rust, corrosion, and excessive heat damage. Inspect for accumulated
carbon.
5-2
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