Jeep Wrangler 1997 Manual page 737

TJ
REMOVAL AND INSTALLATION (Continued)
Camshaft end play is maintained by the load
placed on the camshaft by the sprocket preload bolt
tension spring and thrust pin.
INSTALLATION
(1)
Clean the camshaft pin hole.
(2) Compress the center of the replacement spring
pin with vise grips .
(3) Carefully drive the pin into the camshaft pin
hole until it is seated .
(4) Install the camshaft sprocket, crankshaft
sprocket and timing chain with the timing marks
aligned (Fig. 36).
(5) Install the crankshaft oil slinger.
(6) Tighten the camshaft sprocket preload bolt to
108 N-m (80 ft. lbs .) torque .
(7) Check the valve timing.
(8) Lubricate the tension spring, the thrust pin
and the pin bore in the preload bolt with Mopar
Engine Oil Supplement, or equivalent. Install the
spring and thrust pin in the preload bolt head.
(9) Coat both sides of the replacement timing case
cover gasket with gasket sealer. Apply a 3 mm (1/8
inch) bead of Mopar Silicone Rubber Adhesive Seal-
ant, or equivalent to the joint formed at the oil pan
and cylinder block .
(10) Position the timing case cover on the oil pan
gasket and the cylinder block.
(11) Place Timing Case Cover Alignment and Seal
Installation Tool 6139 in the crankshaft opening in
the cover (Fig. 37) .
TIMING CASE
COVER ALIGNMENT
AND SEAL INSTALLATION_
TOOL
J9009-23
Fig. 37 Timing Case Cover Alignment and Seal
Installation Tool 6139
(12) Install the timing case cover-to-cylinder block
bolts . Install the oil pan-to-timing case cover bolts.
(13) Tighten the 1/4 inch cover-to-block bolts to 7
N-m (60 in . lbs .) torque . Tighten the 5/16 inch front
cover-to-block bolts to 22 N-m (192 in. lbs.) torque .
Tighten the oil pan-to-cover 1/4 inch bolts to 14 N-m
4 .OL ENGINE 9 - 75
(120 in. lbs .) torque. Tighten the oil pan-to-cover 5/16
inch bolts to 18 N-m (156 in. lbs .) torque .
(14) Remove the cover alignment tool and install a
replacement oil seal into the cover.
(15) Install the vibration damper on the crank-
shaft.
(16) Lubricate and tighten the damper bolt to 108
N-m (80 ft. lbs .) torque.
(17) If equipped with air conditioning:
(a) Install the A/C compressor serpentine drive
belt idler pulley.
(b) Install the generator.
(c) Install the A/C condenser and receiver/drier
assembly.
(18) Install the serpentine drive belt on the pulleys
and tighten (refer to Group 7, Cooling System for the
specifications and procedures) .
(19) Install the radiator . Connect the radiator
hoses and automatic transmission fluid cooler pipes,
if equipped . Fill the cooling system .
(20) Install the fan and shroud .
(21) Connect negative cable to battery.
OIL PAN
REMOVAL
(1)
Disconnect negative cable from battery.
(2) Raise the vehicle .
(3) Remove the oil pan drain plug and drain the
engine oil .
(4) Disconnect the exhaust pipe at the exhaust
manifold .
(5) Disconnect the exhaust hanger at the catalytic
converter and lower the pipe.
(6) Remove the starter motor.
(7) Remove the engine flywheel and transmission
torque converter housing access cover.
(8) If equipped with an oil level sensor, disconnect
the sensor.
(9) Position a jack stand directly under the engine
vibration damper.
(10) Place a piece of wood (2 x 2) between the jack
stand and the engine vibration damper.
(11) Remove the engine mount through bolts .
(12) Using the jack stand, raise the engine until
adequate clearance is obtained to remove the oil pan .
(13) Remove the oil pan bolts . Carefully slide the
oil pan and gasket to the rear. If equipped with an oil
level sensor, take care not to damage the sensor.
INSTALLATION
(1)
Clean the block and pan gasket surfaces.
(2) Fabricate 4 alignment dowels from 1 1/2 x 1/4
inch bolts . Cut the head off the bolts and cut a slot
into the top of the dowel . This will allow easier
installation and removal with a screwdriver (Fig. 38) .