Crankshaft Vibration Damper And Pulley Installation - Jeep 1987 Wrangler Workshop Manual

ENGINES
I P
4.2 LITER (258 CID) SIX-CYLINDER ENGINE
I P
CRANKSHAFT VIBRATION DAMPER AND
PULLEY INSTALLATION
With the key in position, align the key slot of the
vibration damper hub with the crankshaft key
and tap the damper onto the crankshaft.
Install the vibration damper retaining bolt and
washer. Tighten the bolt with 108 N-m (80 ft-lbs)
torque.
NOTE: If the crankshaft turns before the damper
bolt torque value is attained, the crankshaft can
be prevented from turning by placing two
5/16x1
1
/2-inch bolts into the damper front pulley
holes and wedging a bar between them. Rotate
the bar until it contacts the frame member to
prevent the crankshaft from turning.
Install the damper pulley (V-belt only) and
retaining bolts. Tighten the bolts with 27 N-m
(20 ft-lbs) torque.
Install the drive belt(s) and tighten to the
specified tension. Refer to the Cooling Systems
section.
TIMING CASE COVER REMOVAL
Remove the drive belt(s), engine fan and hub
assembly, fan shroud, vibration damper (1),
pulley, and key- Refer to Vibration
Damper Removal.
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