Jeep 1996 Grand Cherokee Service Manual - page 1006
(1) Rotate crankshaft until No.1 cylinder is at top
dead center on the firing stroke.
(2) When in this position, the timing mark of
vibration damper should be under “0” on the timing
indicator.
(3) Install the shaft so that after the gear spirals
into place, it will index with the oil pump shaft. The
slot on top of oil pump shaft should be aligned
towards the left front intake manifold attaching bolt
hole (Fig. 37).
(4) Install distributor, refer to Group 8D, Ignition
Systems for the proper procedure.
After the distributor has been installed, its rota-
tional position must be set using the SET SYNC
mode of the DRB scan tool. Refer to Checking Dis-
tributor Position following the Distributor Installa-
tion section in Group 8D, Ignition system.
Do not attempt to adjust ignition timing by
rotating the distributor. It has no effect on igni-
tion timing. Adjusting distributor position will
effect fuel synchronization only.
OIL PAN
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Raise the vehicle.
(3) Remove the oil pan drain plug and drain the
engine oil.
(4) Remove the oil filter.
(5) Remove the starter (refer to Group 8B, Battery/
Starter/Generator Service).
(6) If equipped with an oil level sensor, disconnect
the sensor.
(7) Position the cooler lines out of the way.
(8) Disconnect the oxygen sensor.
(9) Remove exhaust pipe.
(10) 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) Fabricate 4 alignment dowels from 5/16 x 1 1/2
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).
(2) Install the dowels in the cylinder block (Fig.
39).
Fig. 36 Burnishing Distributor Driveshaft Bushing
Fig. 37 Position of Oil Pump Shaft Slot
Fig. 38 Fabrication of Alignment Dowels
Fig. 39 Position of Dowels in Cylinder Block
ZJ
5.2L ENGINE
9 - 69
REMOVAL AND INSTALLATION (Continued)