Jeep 1996 Grand Cherokee Service Manual - page 1009
tion/alignment tool 6635, should fit with minimum
interference. If tool does not fit, the cover must be
removed and installed properly.
(4) Place a suitable tool behind the lips of the oil
seal to pry the oil seal outward. Be careful not to
damage the crankshaft seal bore of cover.
(5) Place the smaller diameter of the oil seal over
Front Oil Seal Installation Tool 6635 (Fig. 43). Seat
the oil seal in the groove of the tool.
(6) Position the seal and tool onto the crankshaft
(Fig. 44).
(7) Using the vibration damper bolt, tighten the
bolt to draw the seal into position on the crankshaft
(Fig. 45).
(8) Remove the vibration damper bolt and seal
installation tool.
(9) Inspect
the
seal
flange
on
the
vibration
damper.
(10) Install the vibration damper.
(11) Connect the negative cable to the battery.
CRANKSHAFT REAR OIL SEALS
The service seal is a 2 piece, viton seal. The upper
seal half can be installed with crankshaft removed
from engine or with crankshaft installed. When a
new upper seal is installed, install a new lower seal.
The lower seal half can only be installed with the
rear main bearing cap removed.
UPPER SEAL —CRANKSHAFT REMOVED
REMOVAL
(1) Remove the crankshaft. Discard the old upper
seal.
INSTALLATION
(1) Clean the cylinder block rear cap mating sur-
face. Make sure the seal groove is free of debris.
(2) Lightly oil the new upper seal lips with engine
oil.
(3) Install the new upper rear bearing oil seal with
the white paint facing towards the rear of the engine.
(4) Position the crankshaft into the cylinder block.
(5) Lightly oil the new lower seal lips with engine
oil.
(6) Install the new lower rear bearing oil seal into
the bearing cap with the white paint facing towards
the rear of the engine.
(7) Apply 5 mm (0.20 in) drop of Loctite 518, or
equivalent, on each side of the rear main bearing cap
Fig. 43 Placing Oil Seal on Installation Tool 6635
Fig. 44 Position Tool and Seal onto Crankshaft
Fig. 45 Installing Oil Seal
9 - 72
5.2L ENGINE
ZJ
REMOVAL AND INSTALLATION (Continued)