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6A2-8
1977 PONTIAC SERVICE MANUAL
BOLT TORQUE 35 LB.FT.
Fig.
6 A 2 - 1 2
Manifold Bolt Torque Sequence
Replace
1. Install new gasket on cover
-
glue gasket to cover.
2. Install cover bolts (torque to 7 lb. ft.). Reinforcements
must be installed with bow up.
3. Install air cleaner.
4. Install fuel line clips and PCV system.
ROCKER ARM, PUSH ROD AND/OR
ROCKER STUD
Remove
1 . Remove rocker cover.
2. Remove rocker arm nut and ball.
3. Remove rocker arm.
NOTE: If only the push rod is to be replaced, loosen
rocker nut and swing arm away from pushrod. Remove
pushrod by pulling it up through the hole in the head.
4. Remove rocker stud using a deep socket and turning
stud out of head.
Replace
1. Install rocker stud in head and torque to 60 lb. ft.
2. Install pushrod through the hole in the head and into
lifter seat.
3. Install rocker arm, arm ball and nut. Torque nut to
20 lb. ft.
4. Install rocker cover.
VALVE SPRINGS, SHIELD AND/OR
SEALS
Remove
1. Remove rocker arm cover.
2. Remove rocker arms on cylinder to be serviced.
3. Remove spark plug from cylinder of valve(s) to be
serviced.
4. Install air hose adapter 5-22794 into spark plug hole
and apply air pressure to hold valves in place.
5. After removing rocker arm, thread rocker arm nut on
rocker arm stud. Insert slotted end of tool 5-5892-1 under
rocker arm nut. Compress valve spring (Fig. 6A2-13) and
hold to allow removal of valve spring retainer cup locks.
Remove tool, valve spring retainer cup shield and valve stem
seal.
Fig.
6 A 2 - 1 3
Compressing Valve Springs
Replace
1 . Install any new parts by reversing removal procedure
steps 2-5. Torque rocker nuts to 20 lb. ft.
NOTE: Always install a new valve stem oil seal
whenever spring locks have been disturbed.
2. Install spark plug and rocker cover.
PUSH ROD COVER OR GASKET
Remove
1 . Remove fuel line clip.
2. Remove push rod cover bolts and remove cover.
Replace
1 . Glue new gasket on push rod cover.
2. Install cover and cover to block bolts.
3. Install fuel line clip.
VALVE LIFTER
Remove
1. Remove rocker arm cover.
2. Loosen rocker arm and rotate it for clearance from
push rod.
3. Remove push rod.
4. Remove push rod cover.
5. Remove lifter. Hydraulic valve lifter remover 5-3049
may facilitate removal of lifter.
If new lifter is to be installed, be sure to remove all sealer
coating from inside o f new lifter and check leak-down rate.
Replace
1 . Place lifter in lifter boss.
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