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ENGINE 6-35
Fig. 19V - installing Oil Seal (Cover Installed)
396 and 427
TIMING CHAIN AND/OR SPROCKETS
Replacement
1. Remove torsionai damper and crankcase front cover
as outlined.
2. Crank engine until marks on camshaft and crankshaft
sprockets are in alignment (fig. 20V).
3. Remove three camshaft sprocket to camshaft boltg.
4. Remove camshaft sprocket and timing chain together.
Fig. 21V - Removing Crankshaft Sprocket
(283, 327 and 350)
NOTE:
Sprocket is a light press fit on cam-
shaft. To dislodge, tap lightly on lower edge of
camshaft sprocket with a plastic hammer.
5. If crankshaft sprocket is to be replaced, remove
sprocket using Tool J-5825 on 283, 327 and 350
cu. in. engines (fig. 21V) or Tool J-1619 on 396 and
427 cu. in. engines (fig. 22V). Install new sprocket
using Tool J-5590 on 283, 327 and 350 cu. in. engines
-
(fig. 23V) or Tool J-21058 on 396 and 427 cu. in.
engines (fig. 24V).
6. Install timing chain on camshaft sprocket. Hold the
sprocket vertical with the chain hanging below, and
orient to align marks on camshaft and crankshaft
sprockets (fig. 20V).
7. Align dowel in camshaft with dowel hole in camshaft
sprocket and install sprocket on camshaft (fig. 25V).
NOTE:
Do not attempt to drive cam sprocket
on shaft as welsh plug at rear of engine can be
dislodged.
WASHER
(TORSIONAL DAMPER)
Fig. 20V - Timing Sprocket Marks
Fig. 22V - Removing Crankshaft Sprocket (396 and 427)
CHEVROLET CHASSIS SERVICE MANUAL
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