Chapter
2
Part
A
Four-cylinder engine
12.2 The front crankshaft seal can be removed w i t h a seal
removal tool or a large screwdriver (V6 engine shown
-
cylinder similar)
12.6 Once the timing chain cover is removed, place
it
on a flat
surface and gently pry the old seal out w i t h a large screwdriver
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 t o press the damper into position.
1 0 Tighten the vibration damper-to-crankshaft bolt t o the specified
torque.
11 Install the crankshaft pulley (if equipped) on the hub and tighten
the bolts t o the specified torque. Use Locktite on the bolt threads.
1 2 Install the
(Chapter 1 and replace the fan shroud (if
equipped).
1 2 Front crankshaft oil seal
-
replacement
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.
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
-
the new one must face the same
direction! Carefully pry the oil seal out of the cover with a seal puller
or a large screwdriver (see illustration). Be very careful not t o distort
the cover or scratch the crankshaft!
3
Apply clean engine oil or multi-purpose grease t o 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,
and
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 t o distort the cover or scratch the wall of
the seal bore. If the engine has accumulated a lot of miles, apply
penetrating oil t o the seal-to-cover joint and allow
it t o soak in before
attempting t o remove the seal.
7
Clean the bore t o remove any old seal material and corrosion. Sup-
port the cover on a block of wood and position the new seal in the
Clean the bore, then apply a small amount of oil t o
the outer edge of the new seal and drive
it
squarely into
the opening w i t h a large socket
. . .
. . .
or a block of wood and a hammer
don't
damage the seal in the process!
The Motor Manual Guy
Summary of Contents for cherokee 1989
Page 2: ...The Motor Manual Guy...
Page 3: ...The Motor Manual Guy...
Page 32: ...The Motor Manual Guy...
Page 191: ...The Motor Manual Guy...
Page 266: ...The Motor Manual Guy...
Page 267: ...The Motor Manual Guy...