S15/T15 4WD Jimmy V6-173 2.8L (1988)
Harmonic Balancer - Crankshaft Pulley: Service and Repair
HARMONIC BALANCER
REPLACEMENT
CAUTION The inertial weight section of the Harmonic Balancer is assembled to the hub with a rubber sleeve. The removal and installation procedures
must be followed (with proper tools) or movement of the inertia weight section of the hub will destroy the tuning of the Harmonic Balancer and the
engine timing reference.
The Harmonic Balancer has three timing notches on the inertia ring. The number one cylinder timing reference mark will be identified by a dab of white
paint. If a new damper assembly is installed, mark the new assembly in the same place for future reference. Number one cylinder reference is the first
clockwise mark from the keyway when viewing the engine from the front.
REMOVE OR DISCONNECT
Tool Required: J 23523-E or J 24420-B, Puller
1. Negative battery cable.
2. Accessory drive belt.
3. Harmonic Balancer retaining bolt.
4. Drive pulley from the damper.
5. Raise the vehicle. Support with suitable safety stands.
6. Damper using J 23523-E or J 24420-B.
INSTALL OR CONNECT
Tool Required: J 29113, Harmonic Balancer Installer
1. Engine oil to the front cover seal contact area on the damper.
2. Sealant (GM Part No. 1052366 or equivalent) on the key and the key way.
3. Clean the key and the key way.
4. Damper over the key on the crankshaft.
5. Pull the damper onto the crankshaft.
^ Install J 29113 into the crankshaft so at least 6 mm (0.236-inch) of thread is engaged.
^ Pull damper into position and remove J 29113 from the damper.
6. Drive pulley to the damper.
7. Harmonic Balancer retaining bolt.
Tighten
^ Bolt to 95 Nm (70 ft. lbs.).
8. Lower the vehicle.
9. Drive belt.
10. Battery negative cable.