Front Crankshaft Oil Seal-Replacement; Timing Chain Cover In Place; Timing Chain Cover Removed - Jeep cherokee 1989 Owner's Manual

12.2 The front crankshaft seal can be removed with a seal
removal tool or a large screwdriver (V6 engine shown
cylinder similar)
9 Slide the vibration damper onto the crankshaft. Note that the slot
in the hub must be aligned with the Woodruff key in the end of the
crankshaft. Once the key is aligned with the slot, tap the damper onto
the crankshaft with a soft-face hammer. The retaining bolt can also
be used to press the damper into position.
1 0 Tighten the vibration damper-to-crankshaft bolt to the specified
torque.
11 Install the crankshaft pulley (if equipped) on the hub and tighten
the bolts to the specified torque. Use Locktite on the bolt threads.
12 Install the drivebeltM (Chapter 1
equipped).
-
1 2 Front crankshaft oil seal
Note: The front crankshaft oil seal can be replaced with the timing chain
cover in place. However, due to the limited amount of room available,
you may conclude that the procedure would be easier if the cover were
removed from the engine first. If so, refer to Section 13 for the cover
removal and installation procedure.

Timing chain cover in place

Refer to illustration 12.2
1 Disconnect the negative battery cable from the battery, then
remove the vibration damper (see Section 1 1
2 Note how the seal is installed
direction! Carefully pry the oil seal out of the cover with a seal puller
or a large screwdriver (see illustration). Be very careful not to distort
the cover or scratch the crankshaft!
3 Apply clean engine oil or multi-purpose grease to the outer edge
of the new seal, then install it in the cover with the lip (open end) facing
in. Drive the seal into place with a large socket and a hammer (if a
large socket isn't available, a piece of pipe will also work). Make sure
the seal enters the bore squarely and stop when the front face is flush
with the cover.
4
Install the vibration damper (see Section 11

Timing chain cover removed

Refer to illustrations 12.6, 12.8a and 12.8b
5 Remove the timing chain cover as described in Section 13.
6 Using a large screwdriver, pry the old seal out of the cover (see
illustration). Be careful not to distort the cover or scratch the wall of
the seal bore. If the engine has accumulated a lot of miles, apply
penetrating oil to the seal-to-cover joint and allow it to soak in before
attempting to remove the seal.
7 Clean the bore to remove any old seal material and corrosion. Sup-
port the cover on a block of wood and position the new seal in the
The Motor Manual Guy
Chapter 2 Part A
-
and replace the fan shroud (if
replacement
-
the new one must face the same
Four-cylinder engine
12.6 Once the timing chain cover is removed, place
surface and gently pry the old seal out with a large screwdriver
Clean the bore, then apply a small amount of oil to
the outer edge of the new seal and drive
the opening with a large socket
. . .
or a block of wood and a hammer
damage the seal in the process!
it on a flat
squarely into
it
. . .
don't