Timing Chain Removal - Jeep 1987 Wrangler Workshop Manual

ENGINES
2.46 LITER (150 CID) FOUR-CYLINDER ENGINE
Apply a light film of engine oil on the vibration
damper hub contact surface of the seal.
With the key inserted in the keyway on the
crankshaft, install the vibration damper, washer
and bolt.
Lubricate and tighten the bolt with 108 N-m
(80 ft-lbs) torque.
NOTE: If the crankshaft turns before the damper
bolt tightening torque value is attained, the
crankshaft can be prevented from turning by
placing two 5/16x1 y
2
inch bolts into the damper
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. 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 CHAIN REMOVAL
N O T E : The timing chain tensioner reduces
noise and prolongs timing chain life. In addition,
it compensates for slack in a worn or stretched
chain and helps to maintain the correct valve
timing.
Remove the fan and shroud.
Remove the drive belt(s).
Remove the crankshaft vibration damper and
pulley.
Remove the timing case cover. Refer to the
removal procedure.
Remove the crankshaft oil slinger.
84874
Rotate the crankshaft until the zero degree (0°)
timing mark on the crankshaft sprocket is
closest to and on the center line with the timing
mark on the camshaft sprocket (A).
84184
B-67