Pontiac FIREBIRD 1972 Service Manual page 588

6-76 1972 PONTIAC SERVICE MANUAL
Fig. 6-1 28 Timing Marks Aligned at No. 1 T.D.C.
-
3 0 7
Engine
1 1. Install timing chain cover, water pump and harmonic
balancer making sure O-ring seal is in place.
CAMSHAFT AND/OR CAMSHAFT
BEARING
Fig. 6-1 29 Removing Crankshaft Sprocket
Fig. 6-130 Installing Crankshaft Sprocket
I
The camshaft and camshaft bearings can be replaced with
engine installed in car or with engine removed and disas-
sembled for overhaul; however, to replace the rear cam-
shaft bearing without removing and completely
disassembling engine, the propeller shaft, transmission
and clutch housing must first be removed.
To replace the camshaft and/or the rear center, center,
front center or front camshaft bearing without removing
and completely disassembling the engine, proceed as fol-
lows:
CAMSHAFT
REMOVE
1. Drain radiator.
2. Remove carburetor air cleaner.
3. Disconnect all water hoses, vacuum hose and spark
plug wires.
4. Disconnect carburetor linkage, fuel lines and wires to
thermogauge unit.
5. Remove hood latch brace.
6. Remove radiator.
7. On air-conditioned cars, remove generator mounting
bracket and generator.
8. Remove crankcase ventilator hose, and remove both
rocker arm covers and gaskets.
9. ~ e k o v e distributor hold-down clamp and remove
distributor.
10. Remove intake manifold and gaskets.
Make certain O-ring seal between intake manifold