Cadillac 60 Series 1963 Shop Manual page 223

9-30
ENGINE MECHANICAL
14. Rotate crankshaft one complete turn to
make sure crankshaft is not binding.
15. Install oil pan as described in Note 19b.
16. Install spark plugs and tighten to 25 foot-
pounds. Connect spark plug wires at plugs.
17. Remove stands and lower car.
31. Timing Chain and Sprockets
Removal and Installation
a. Removal
1. Remove engine front cover as described in
Note 2a.
. 2. Remove two cap screws with lock washers
that hold camshaft sprocket to camshaft.
3. Remove camshaft sprocket with chain from
camshaft.
4. Remove crankshaft sprocket from crankshaft.
b. Installation
1. Install crankshaft sprocket over crankshaft
key with timing mark toward the front.
2. Install camshaft sprocket in timing chain
with timing mark toward the front.
3. Place chain over crankshaft sprocket and
line up timing marks on both sprockets as shown
in Fig. 9-34.
Dowel Holes in Camshaft
When Installing
Timing Chain,
Marks Must Line Up,
As Shown
Fig. 9-34 Timing Gear Locating Marks
4. Hold camshaft sprocket in position against
end of camshaft and press sprocket on camshaft
by hand, being sure index hole in camshaft is
lined up with index hole in sprocket.
5. Install two cap screws with lock washers that
hold camshaft sprocket to camshaft. Tighten
screws to 18 foot-pounds.
6. Install engine front cover as described in
Note 2h.
32. Camshaft Removal
1. If car is equipped with Air Conditioner, re-
move condenser as described in Section 13, Note
62a.
2. Remove hood lock plate support as described
in Section 14, Note 1.
3. Remove timing chain and sprockets as des-
cribed in Note 31a.
4. Remove valve lifters as described in Note
16.
5. Slide camshaft forward carefully until it is
out of engine.
CAUTION: Extreme care must be exercised
to keep cam lobes from scratching camshaft
bearings.
33. Camshaft Checking
The camshaft on 1963 engines is made of alloy
cast iron. It must be handled with particular care
to avoid damage.
Whenever camshaft has been removed from en-
gine, or faulty camshaft action is suspected in
diagnosing engine conditions, the camshaft lobes
should be checked for wear. This may be done
visually, with camshaft installed in engine, by re-
moving hydraulic lifters and noting condition of
camshaft lobes. Excessive wear, scoring, or
flaking of the lifter will usually denote camshaft
wear. Camshaft: should then be removed and cam
lobes checked with a micrometer.
Bearing journals should not be scored or
burned. Cam lobes should be smooth and free of
burrs and grooves. Fuel pump eccentric should
not show any evidence of wear. If abnormal wear
or grooves are noted, camshaft should be re-
placed. Camshaft bearings should be visually
inspected, in their bores, for excessive wear.
34. Camshaft Installation
NOTE: Before installing camshaft, apply a