Structural Cover - Jeep KJ 2005 Service Manual

KJ
VIBRATION DAMPER (Continued)
INSTALLATION
CAUTION: To prevent severe damage to the Crank-
shaft, Damper or Special Tool 8512, thoroughly
clean the damper bore and the crankshaft nose
before installing Damper.
(1) Align crankshaft damper slot with key in
crankshaft. Slide damper onto crankshaft slightly.
CAUTION: Special Tool 8512A, is assembled in a
specific sequence. Failure to assemble this tool in
this sequence can result in tool failure and severe
damage to either the tool or the crankshaft.
(2) Assemble Special Tool 8512–A as follows, The
nut is threaded onto the shaft first. Then the roller
bearing is placed onto the threaded rod (The hard-
ened bearing surface of the bearing MUSTface the
nut). Then the hardened washer slides onto the
threaded rod (Fig. 79). Once assembled coat the
threaded rod's threads with Mopar
Seize or (Loctite No. 771).
Fig. 79 Proper Assembly Method for Special Tool
1 - BEARING
2 - NUT
3 - THREADED ROD
4 - BEARING HARDENED SURFACE (FACING NUT)
5 - HARDENED WASHER
(3) Using Special Tool 8512A, press damper onto
crankshaft (Fig. 80).
(4) Install then tighten crankshaft damper bolt to
175 N·m (130 ft. lbs.).
(5) Install accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL-
LATION).
(6) Connect negative cable to battery.
Nickel Anti-
8512–A
Fig. 80 Crankshaft Damper Installation
1 - SPECIAL TOOL 8512A

STRUCTURAL COVER

DESCRIPTION
The structural dust cover is made of die cast alu-
minum and joins the lower half of the transmission
bell housing to the engine bedplate.
OPERATION
The structural cover provides additional power-
train stiffness and reduces noise and vibration.
REMOVAL
(1) Raise vehicle on hoist.
(2) Remove the bolts retaining structural cover
(Fig. 81).
(3) Remove the structural cover.
INSTALLATION
CAUTION: The structural cover must be installed as
described in the following steps. Failure to do so
will cause severe damage to the cover.
(1) Position the structural cover in the vehicle.
(2) Install all bolts retaining the cover-to-engine.
DO NOT tighten the bolts at this time.
(3) Install the cover-to-transmission bolts. Do NOT
tighten at this time.
ENGINE - 3.7L 9 - 131