TM 10-4610-229-24
2-62. VALVE ADJUSTMENT
This task covers adjustment only
INITIAL SETUP:
Use With
Equipment
Condition
Boost Pump Assembly
Para
Condition Description
Tools
2-61
Valve cover removed.
General Mechanic's Automotive
Tool Kit, item 10, appendix B
NOTE
Valve adjustment is done in firing order. Begin with no. 1 cylinder (located at rear of engine).
Firing order is 1-3-2.
1
Turn engine crankshaft in direction of rotation, bringing engine to tdc. Tdc is one-quarter to one-
half turn after inlet valve closes.
2
Loosen locknut.
NOTE
Valve clearance is correctly adjusted when a slight drag is felt on feeler gage. Intake and exhaust
valve clearance is 0.008 in.
3
Place feeler gage between rocker arm and valve stem end.
4
Turn adjusting screw in or out until slight drag is felt on feeler gage.
5
Tighten locknut. Recheck valve clearance (steps 3 and 4).
6
Repeat steps 3 thru 6 for other valve.
7
Repeat steps 1 thru 7 for remaining cylinders.
8
Install valve cover (para 2-61).
2-135
