Pistons And Connecting Rods - Jeep cherokee 2000 Service Manual

9 - 108 4.0L ENGINE
REMOVAL AND INSTALLATION (Continued)
(3) Install two dowels in the timing case cover.
Install the other two dowels in the cylinder block
(Fig. 73).
Fig. 73 Position of Dowels in Cylinder Block
1 – DOWEL HOLES
2 – CYLINDER BLOCK
3 – 5/16 HOLES
4 – 5/16 HOLES
(4) Apply Mopar Silicone Rubber Adhesive Seal-
ant on cylinder block to rear main bearing cap cor-
ners and cylinder block to front cover joints (four
places) (Fig. 74).
(5) Slide the one-piece gasket over the dowels and
onto the block and timing case cover.
(6) Position the oil pan over the dowels and onto
the gasket. If equipped with an oil level sensor, take
care not to damage the sensor.
(7) Install the 1/4 inch oil pan bolts. Tighten these
bolts to 9.5 N·m (84 in. lbs.) torque. Install the 5/16
inch oil pan bolts (Fig. 75). Tighten these bolts to 15
N·m (132 in. lbs.) torque.
Fig. 74 Oil Pan Sealer Location
1 – SEALER LOCATIONS
Fig. 75 Position of 5/16 inch Oil Pan Bolts
1 – OIL PAN
2 – OIL PAN DRAIN PLUG
(8) Remove the dowels. Install the remaining 1/4
inch oil pan bolts. Tighten these bolts to 9.5 N·m (84
in. lbs.) torque.
(9) Lower the engine until it is properly located on
the engine mounts.
(10) Install the through bolts and tighten the nuts.
(11) Lower the jack stand and remove the piece of
wood.
(12) Install the engine flywheel and transmission
torque converter housing access cover.
(13) Install the engine starter motor.
(14) Connect the exhaust pipe to the hanger and to
the engine exhaust manifold.
(15) Install transmission
equipped) and oxygen sensor wiring supports that
attach to the oil pan studs.
(16) Install the oil pan drain plug (Fig. 75).
Tighten the plug to 34 N·m (25 ft. lbs.) torque.
(17) Lower the vehicle.
(18) Connect negative cable to battery.
(19) Fill the oil pan with engine oil to the specified
level.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR FAN. DO
NOT WEAR LOOSE CLOTHING.
(20) Start the engine and inspect for leaks.

PISTONS AND CONNECTING RODS

REMOVAL
(1) Remove the engine cylinder head cover.
(2) Remove the rocker arms, bridges and pivots.
(3) Remove the push rods.
(4) Remove the engine cylinder head.
(5) Position the pistons one at a time near the bot-
tom of the stroke. Use a ridge reamer to remove the
XJ
oil cooling lines (if