TM 10-4320-344-24
4.4.16 Camshaft Maintenance, Model 609-A.
This task covers:
4.4.16.1 Removal
4 .
4 .1 6 . 3 I n s t a l l a t i o n
4 .
4 .1 6 . 2 R e p a ir
INITIAL SETUP
Tools
General Mechanic’s Automotive Tool Kit,
Appendix B, Section III, Item 1
Goggles, Industrial, Appendix B,
Section III, Item 2
Gun, Air Blow, Appendix B, Section III,
Item 2
Torque Wrench, Appendix B, Section III,
Item 2
Arbor Press, Appendix B, Section III,
Item 3
Micrometer, Appendix B, Section III,
Item 3
Material/Parts
Abrasive Cloth (Emery), Appendix C,
Item 8
Gloves, Appendix C, Item 11
Grease (Engine Assembly), Appendix C,
Item 13
Oil, Appendix C, Item 15
Rags, Appendix C, Item 20
Material/Parts (Continued)
Solvent, Dry Cleaning, Appendix C,
Item 26
Tags, Appendix C, Item 31
Camshaft Gear (TM 10-4320-344-24P)
Lock Washers (TM 10-4320-344-24P)
Woodruff Key (TM 10-4320-344-24P)
Equipment Conditions
Oil Pump Assembly removed, paragraph
3 .
8 .
1
3.
Rocker Arm Assembly removed, paragraph
3 .
8 .
1
7.
Gear Housing Cover removed, paragraph
4 .
4 .
4 .
Bellhousing removed, paragraph 4.4.11.
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.
Do not work on equipment without follow-
ing standard shop safety practices.
4.4.16.1 Removal.
a .
Place engine upside down, and support with suitable blocks so cylinder head
studs will clear.
b .
Push valve tappets (Figure 4-27, 1) down from camshaft assembly (2) and into
engine block (3).
c .
Rotate engine crankshaft (4) until two thrust plate mounting bolts (5) show
through two holes in camshaft gear (6).
d .
Remove two bolts (5) and lock washers (7) that secure camshaft thrust plate
(8) to engine block (3). Discard lock washers (7).
Carefully remove camshaft assembly through bearings located in engine block.
Failure to obey this caution may result in damage to the equipment.
e .
Pull camshaft assembly (2) forward out of engine block (3).
f .
Remove twelve valve tappets (1) from engine block (3). As each valve tappet
(1) is removed, tag valve tappet (1) for location in engine block (3).
g.
Remove nut (9) that secures camshaft gear (6) to camshaft (10).
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