Chevrolet 70 1969 Series, Shop Manual

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G ASO LINE ENGINES 6A-11
1 End Bracket
2 Adjusting Screw
3 Push Rod
4 Rocker A rm Shaft Bracket
5 Intake Manifold
m
6 Rocker A rm Shaft
7 Spring
8 Bracket Bolt
9 Flat Washer
10 Exhaust Manifold
11 Exhaust Manifold Bolt Lock
12 Rocker Arm
13 Special Bolt
TPM-9875
Figure 12— Valve Rocker Arm s and Shaft Installed
CRANKSHAFT PULLEY AND HUB
REPLACEMENT
On some models the crankshaft pulley is not
readily accessible unless the radiator core is first
removed. The special tool typically illustrated in
figure 13 must be used to start the pulley retaining
cone off crankshaft.
R E M O V A L
1. Remove radiator if necessary, to provide
access to crankshaft pulley.
2. Use impact wrench, or hold engine flywheel
and use conventional wrench to remove pulley re­
taining bolt.
3. Assemble puller and center plug in manner
shown in figure 13, then turn puller screw to re­
move pulley from crankshaft.
IN S T A L L A T IO N
1. Clean seal area on crankshaft pulley or
hub thoroughly and apply engine oil on surface con­
tacted by oil seal.
2. Align keyway in pulley with key in crank­
shaft, then start pulley or hub onto front end of
crankshaft. Assemble special installer shown in
Figure 13— Crankshaft Pulley Hub Removal (TypicalI
Figure 14— Tool for Installing Pulley
or Hub on Crankshaft (Typical)
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK SHO P MANUAL