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 TM 10-3930-638-24&P
4-2. ENGINE MAINTENANCE (cont)
b. Cylinder Head and Valves (cont).
LOCATION
STEP
ITEM
ACTION
REMARKS
INSPECTION AND REPAIR (cont)
8
d. Valve face
Measure
Check as shown below. If runout exceeds
(cont)
and stem runout
0.002 inch, replace valve
9
Cylinder head
a. Intake valve (7)
Install and
Check as shown below. If exhaust valve
(8)
and exhaust
recession is more than 0.005 inch, re-
check valve
valve (6)
recession
place valve or valve seat insert. If intake
valve recession is more than 0.005 inch,
replace intake valve and recheck recession
If recession is still more than 0.005 inch,
replace or resurface cylinder head (mini-
mum cylinder head thickness of 3.968
inches must be maintained)
4-14
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