2007 Wrangler JK Factory Service Manual 9 - ENGINE

DAMPER-VIBRATION

REMOVAL




1. Disconnect negative cable from battery.
2. Raise vehicle on hoist.
3. Remove the accessory drive belt.
(Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL)
4. Remove vibration damper bolt.
5. Insert Special Tool 8450 into crankshaft nose .
6. Position 3-jaw puller Special Tool 1026 on damper as shown in . Turn puller forcing screw until damper releases from crankshaft.
7. Remove the crankshaft vibration damper.

INSTALLATION




1. Install crankshaft vibration damper using the forcing screw, nut, and thrust bearing/washer from Special Tool 8452 .

NOTE: To minimize friction and prolong tool life, lubricate the threads on the forcing screw of Special Tool 8452.


2. Position vibration damper on crankshaft.
3. Screw Special Tool 8452 into crankshaft until the bolt seats. Turn the nut to install damper until it seats fully.
4. Remove Special Tool 8452.
5. Install vibration damper bolt. Torque bolt to 54 N·m (40 ft. lbs.).
6. Install the accessory drive belt.
(Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION)
7. Connect negative cable to battery.