TM 5-3825-230-14&P
5-25.
VALVE ADJUSTMENT.
This task covers:
Adjustment
INITIAL SETUP
Tools
General Safety Instructions
Tool Kit, General Mechanic's: Automotive
Be sure engine is cool before starting this
procedure or injury to personnel may result.
Equipment Condition
TM or Para
Condition Description
Para 4-28
Rocker arm covers
removed.
Para 4-98
Rear panel removed.
Adjustment.
(1)
Turn flywheel until piston is in TDC (top dead center) position and piston is in compression stroke (para 5-7).
(2)
Loosen nut (1) slightly with a 11 mm box end wrench. Insert a feeler gage between rocker arm (2), and top of
valve (3).
(3)
Adjust valve clearance by turning adjusting screw (4) while holding nut (1) with a 11 mm box end wrench. Adjust
channel to between 0.005 to 0.007 in. (0.15 to 0.20 mm). Repeat step for other valve.
(4)
Repeat steps (1) thru (3) for other cylinder.
NOTE
Follow-on maintenance:
•
Install rear panel (para 4-98)
•
Install rocker arm covers (para 4-28)
END OF TASK
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