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TM 10-3930-638-24&P
3-5. ENGINE MAINTENANCE (cont)
a. Engine Tune-up (cont).
(1) Locating Top Dead Center (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
2
k. Seal
Remove
From valve stem
cont)
l. Seat, valve spring and
Install
Position spring with closed damping coil
retainer
end on top of cylinder head as shown
m. Two valve keepers and
Install
Compress valve spring using screwdriver
new seal
as shown, install new seal in lower groove
of valve stem, install two keepers in upper
groove of valve stem, and slowly release
screwdriver. Gently tap end of valve stem
to seat keepers
n. Push rod for No. 1
Install
Push rocker arm down against valve spring
cylinder intake valve
and push rearwards off valve stem, lower
push rod into bore in cylinder head,
release rocker arm, and position push rod
beneath rocker arm adjusting screw
o. No. 1 cylinder intake
Adjust tappet
Para 3-5a(2)
valve
clearance
3-28
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