TM 10-4320-344-24
SECTION II. GENERAL SUPPORT MAINTENANCE PROCEDURES
ENGINE ASSEMBLY MAINTENANCE .
4.4
4.4.1 Cylinder Head Assembly, Intake Valve, and Exhaust Valve Maintenance, Model 609-A.
This task covers:
4 .4 . 1 . 1 D i s a s s e m b ly
4.4.1.3 Assembly
4 .4 . 1 . 2 R e p a ir
INITIAL SETUP
Tools
General Mechanic’s Automotive
Tool Kit, Appendix B, Section
I I I ,
Item 1
Goggles,
Industrial,
Appendix B,
Section III, Item 2
Depth Gauge, Appendix B, Section III,
Item 3
Inside Micrometer, Appendix B, Section
III, Item 3
Valve Cleaner, Appendix B, Section III,
Item 3
Valve Spring Compressor, Appendix B,
Section III, Item 3
Vernier Calipers, Appendix B, Section
111,
Item 3
Material/Parts
Brush, Appendix C, Item 6
Gloves, Appendix C, Item 11
Material/Parts (Continued)
Oil, Appendix C, Item 15
Rags, Appendix C, Item 20
Solvent, Dry Cleaning, Appendix C,
Item 26
Tags, Appendix C, Item 31
Gasket (TM 10-4320-344-24P)
Lock Washers (TM 10-4320-344-24P)
Equipment Conditions
Cylinder Head Assembly removed, paragraph
3 .
8 .
1
9.
General Safety Instructions
Do not work on equipment that is not
securely stabilized to prevent rolling
o r s l i d i n g.
To prevent burns do not work on hot
engine components.
Allow engine to cool.
DO not work on equipment without follow-
ing standard shop safety practices.
4.4.1.1 Disassembly.
a .
Remove four screws (Figure 4-1, 1), lock washers (2), pipe plug (3), water
o u t l e t c o v e r ( 4 ), and gasket (5) from cylinder head (6).
Discard lock washers
(2) and gasket (5).
b.
Remove seat lock (7), valve spring seat (8), valve spring (9), and valve
insert (10) for each intake valve (11) to be removed.
c .
Remove seat lock (12), valve rotator (13), and valve spring (14) for each
exhaust valve (15) to be removed.
To prevent equipment malfunction,
install valves in same position in cylinder
from which they were removed.
d.
Remove intake valves (11) and exhaust valves (15) and tag location in cylinder
head (6).
4-3
