Rocker Arm Studs; Rocker Arm Stud Removal; Slots Filed In Rocker Arm Stud - Pontiac Grand Prix Service Manual

V-8 ENG
Install new intake manifold gasket plastic retainers.
Check rocker arm stud height with stud gage J 23342
as shown in Fig. 6-89.
1.
Thoroughly clean gasket surfaces of head and block.
Place new gasket on block and replace cylinder head.
NOTE: On Firebird models, when replacing right
cylinder head on V-8 equipped with A/C, it will be
necessary to insert the right rear bolt into the head before
replacing the head on the block.
2. Start all bolts.
NOTE: Bolts are three different lengths. When inserted
in proper holes all bolts will project an equal distance
from the head. Do not use sealer of any kind on the
threacis.
3. Tighten bolts evenly to 95 lb. ft. torque.
4. Install push rods in same location from which they
were removed and with the same end up against
rocker arm.
5. Reposition rocker arms and tighten rocker arm ball
retaining nuts to 20 lb. ft. torque.
6. Replace rocker arm cover and tighten screws.
7. Replace push rod cover and tighten screws.
8. Replace battery ground strap and engine ground
strap on left hand or engine ground strap and
automatic transmission oil level indicator tube bracket
on right head. Also replace the engine oil level
indicator on right side.
9. Replace intake manifold using new gaskets.
10. Install exhaust-pipe-to-manifold attaching nuts.
11. On Firebird models, replace right side insulator
to-bracket bolt on A/C equipped V-8's.
ROCKER ARM STUDS
PRESSED IN STUDS
-
REMOVE AND REPLACE
NOTE: Only
.005"
oversize studr are available. This
stud is to be used i f stud has become loose, broken or
because of faulv threaa3.
The procedures shown are for replacement without
removal of cylinder head. If it is found necessary to
remove the cylinder head for another reason, this
procedure can be used with slight modification.
1. Disconnect battery and drain radiator.
2. Remove rocker arm cover.
3. Pack oily rags around stud and engine openings.
4. With rocker arm removed, file two slots 3/32" to
1/8" deep on opposite sides of rocker arm stud (Fig. 6
88). Top of slots should be 1/4" to 3/8" below thread
travel.
5. Place washer at bottom of rocker arm stud.
6. Position rocker arm stud remover J 8934 on rocker
arm stud and tighten screws securely with 5/32" allen
wrench.
7. Place spacer over stud remover J 8934.
8. Thread 7/8" standard nut on stud remover and turn
nut until rocker arm stud is out of cylinder head (Fig. 6
87).
9. After removing stud, carefully ream stud hole using
reamer J 22126. Stud hole must first be reamed with
pilot shaft attached to reamer. Pilot shaft should then
be removed and stud hole must be reamed again.
Fig. 6-87 Rocker Arm Stud Removal Fig. 6-88 Slots Filed in Rocker Arm Stud