Camshaft Removal - Jeep 1987 Wrangler Workshop Manual

mi
ENGINES
mi
mi
2.46 LITER (150 CID) FOUR-CYLINDER ENGINE
mi
NOTE: To verify correct installation of the timing
chain, turn the crankshaft to position the
camshaft sprocket timing mark at approximately
the one o'clock position. This positions the
crankshaft sprocket timing mark where the
adjacent tooth meshes with the chain at the
three o'clock position. Count the number of
chain pins between the timing marks on both
sprockets. There must be 20 pins .
41937A
Tighten the camshaft sprocket bolt with 108 N-m
(80 ft-lbs) torque.
Remove the tool wedged in the fuel pump
opening.
Check the valve timing. Refer to the timing
procedure.
Install the crankshaft oil slinger.
Pry the crankshaft oil seal from the timing case
cover with a large pry tool and clean the cover.
Install the timing case cover and a replacement
crankshaft oil seal. Refer to the installation
procedure.
With the key inserted in the keyway on the
crankshaft, install the vibration damper, washer
and bolt.
Lubricate and tighten the damper 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 / 1 6 x 1
1
/
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 vibration damper pulley.
Install the drive belts on the pulleys and tighten.
Refer to the Cooling Systems section for the
specifications.
Install the radiator. Connect the radiator hoses.
Fill the cooling system.
Install the fan and shroud.
Tighten the fan assembly nuts with 24 N-m (18
ft-lbs) torque.
Connect the battery negative cable.
CAMSHAFT REMOVAL
WARNING: The coolant in a recently operated
engine is hot and pressurized. Release the
pressure before removing the draincock, cap
and drain plugs.
B-72