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Page Title: Section VII. OIL PAN, OIL PUMP, AND FILLER BLOCKS
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TM 10-3930-632-34
times, the clearance is insufficient.
(4)  Hold valve lifter with an open end wrench while
using a second wrench to turn adjusting screw one-
quarter to one-half turn clockwise.  Repeat clearance
check and adjustment until proper clearance is obtained.
The adjustable-type valve lifters have self-locking
adjusting screws that require no locknuts.
(5)  If an 0.013-inch feeler gage moves freely when
valve is not being lifted, the clearance is too great. Hold
valve lifter with an open end wrench while using a
second wrench to turn valve lifter adjusting screw
counterclockwise one-quarter to one-half turn. Repeat
the clearance check and adjustment until proper
clearance is obtained.
(6)  Repeat clearance check and adjustment for
remaining intake valves.
(7)  Check exhaust valve clearance for proper
0.020-inch clearance by alternately passing an 0.019-
inch and an 0.02-inch flat feeler gage between the head
of the adjusting screw and the valve stem cap.
(8)  If  necessary,  adjust  the  exhaust  valve
clearance in the same manner as the intake valves
described in (1) through (5) above.
(9)  Install the valve tappet cover using a new
Figure 9-12.1. Valve Adjustment
gasket. Secure with two cover nuts and gaskets.
all times, the clearance requires no adjustment.
(3)  If an 0.011-inch feeler gage is gripped at all
Section VII. OIL PAN, OIL PUMP, AND FILLER BLOCKS
cylinder block to provide a sump for the engine oil as it
9-14. General
drains from the operating parts of the engine.
The oil pan is mounted at the bottom of the
Change 1 9-10

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