Pontiac FIREBIRD 1972 Service Manual page 575

V-8 ENGINE 6-63
valve spring retainer cup shield or valve rotator (ex-
haust valves of 307 engine) and valve stem seal.
Fig. 6 - 1 0 2 Compressing Valve Spring
Install air fitting J 22278 in spark plug hole and
attach air line.
Remove rocker arm.
After removing rocker arm, thread valve spring com-
pressor stud J 8929-1 on rocker arm stud and com-
press valve spring, using compressor J 6384-1 and nut
3 8929-2 (Fig. 6-102). Remove valve spring retainer
cup locks and then remdve valve spring compressor,
REPLACE
Install new part or parts, compress springs with valve
spring compressor J 6384-1 and nut J 8929-2. Install
valve stem seal (Fig. 6-103) and retainer cup locks.
Remove spring compressor and valve holder, then
test valve stem seal using suction cup end of tool J
22330 (Fig. 6-104).
Install rocker arm, tighten rocker arm ball retaining
nut to 20 lb. ft.
Remove air fitting J 22278.
I
4. Replace rocker arm cover, spark plug, distributor cap
and connect spark plug wire.
PUSH R O D OR VALVE LIFTER
REMOVE
Remove intake manifold, making sure timing cover
to intake manifold O-ring is saved (all but 307 en-
gine).
Remove push rod cover on all but 307 engine.
Remove rocker arm cover.
Fig. 6 - 1 0 3 Installing Valve Stem Seal
Fig. 6 - 1 0 4 Checking Valve Stem Seal