I.. A ‘ICI**.
8
ORDNANCE MAINTENANCE - ENGINE AND ENGINE ACCESSORIES FOR ‘/4-TON
4x4 TRUCK (WILCYS-OVERLAND MODEL MB AND FORD MODEL GPW)
RA PD
in Place
ceeds inch in an intake valve guide (using a new intake valve
as a gage), or 0.005 inch in an exhaust valve guide (using an exhaust
valve as a gage), the valve guides must be replaced (step (6) below).
If the clearance exceeds 0.003 inch between valve tappet and valve
tappet bore, the valve tappet bores must be reamed to 0.004 inch
oversize, and 0.004-inch oversize valve tappets must be installed when
assembling engine. If valve tappet bore will not clean up at 0.004
inch oversize, the cylinder block must be replaced.
(4) REPLACE STUDS. Remove all damaged studs with a standard
stud puller. To remove a broken stud, indent the end of the broken
stud exactly in the center with a center punch.
Drill approximately
two-thirds through the broken stud with a small drill, then follow up
with a larger drill. However, the drill selected must leave a wall
thicker than the depth of the threads. Select an extractor (EZ-Out)
of the proper size, insert it into the drilled hole, and screw out the
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