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ENGINE 6-20
Fig. 11 L - J-21742 Centering Tool in Cover
tion from walking off the hub during installation
of damper.
2.
3.
Attach damper installer Tool J-22197 to damper.
Tighten fingers of tool to prevent weight from moving
(fig. 10L).
Position damper on crankshaft and drive into posi-
tion, using J-5590, until it bottoms against crankshaft
gear (fig. 10L). Remove installer tool.
4. Install fan belt and adjust using strand tension gauge.
5. If so equipped, install accessory drive pulley and
belt.
6. Install radiator core as outlined in Section 13.
7. Fill cooling system and check for leaks.
CRANKCASE FRONT COVER
Fig. 121 - Installing Oil Seal (Cover Removed)
Fig. 13L- Installing Oil Seal (Cover installed)
Removal
1. Remove oil pan as outlined.
2. Remove crankshaft pulley and hub or torsional
damper as outlined.
3. Remove crankcase front coyer attaching bolts, re-
move cover and gasket.
Installation
1. Clean gasket surfaces on block and crankcase front
cover.
2. Install centering Tool J-996 or Tool J-21742 in
crankcase front cover seal (fig. 11L).
3. Coat the gasket with gasket sealer and place in posi-
tion on cover, then install crankcase front cover to
block and torque bolts to specifications.
4. Remove centering tool.
NOTE:
It is important that centering tool be
used to align crankcase front cover so that
crankshaft hub or torsional damper installation
will not damage seal and to position seal evenly
around the balancer or hub surface.
5. Install crankshaft hub and/or torsional damper as
outlined.
6. Install oil pan with new gaskets and seals as outlined.
OIL SEAL (FRONT COVER)
Replacement
With Cover Removal
1. With cover removed, pry old seal out of cover from
the front with screw driver being careful not to
distort cover.
2. Install new seal so that open end of the seal is toward
the inside of cover and drive it into position with
ToolJ-995 (fig. 12L).
CHEVROLET CHASSIS SERVICE MANUAL
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