Pontiac firebird 1968 - Page 228

SIX CYLINDER ENGINE
6-11
J 22262-2
• SEAL
Fig. 6-14 Installing Camshaft Seal
6. Install sprocket retaining bolt. Tighten finger
tight.
7. Align timing marks (Fig. 6-7) and install timing
belt
8. Adjust timing belt tension.
9. Tighten camshaft sprocket retaining bolt to 40
lb. ft.
10. Install top front cover.
ROCKER ARM COVER ASSEMBLY AND GASKET-
REMOVE AND REPLACE
REMOVE
1. Drain cooling system.
2. Remove water outlet fitting from rocker arm
cover assembly, leaving hose attached, and position
out of way. Remove thermostat.
3
0
Remove timing belt top front cover.
4. Loosen accessory drive housing bolts.
5
0
Align timing marks (Fig. 6-7) and remove tim-
ing belt from camshaft sprocket,,
6. Disconnect necessary fuel and vacuum lines.
7. Remove rocker arm cover assembly to cylinder
head attaching bolts and nuts.
8. Lift rocker arm cover assembly up to clear
four mounting studs.
9. Remove rocker arm cover to cylinder head
gasket and clean gasket flanges.
REPLACE
1. Install new rocker arm cover gasket on cylinder
head.
2. Check all rocker arms for correct position on
hydraulic valve lash adjusters and valves.
3. Install rocker arm cover assembly on four
mounting studs.
4. Install rocker arm cover assembly retaining
bolts. Tighten to 15 lb. ft.
5
0
Install timing belt rear upper cover and four
rocker arm cover to cylinder head retaining nuts.
Tighten to 15 lb. ft.
6
0
Reverse steps one through five of Removal to
complete installation procedure.
NOTE: Install camshaft belt following procedure
as previously outlined.
CAMSHAFT, ROCKER ARM COVER AND/OR ROCKER
ARM COVER CORE PLUG-REMOVE AND REPLACE
REMOVE
1. Remove camshaft sprocket and seal.
2. Remove rocker arm cover assembly.
3. Using J 22284 adapter and slide hammer J 2619
carefully drive camshaft rearward from rocker arm
cover (Fig. 6-15).
CA UTION; Do not allow camshaft to damage bear-
ing surfaces of rocker arm cover.
Fig. 6-15 Removing Camshaft From Cover