Repair 7

How to Change a Harmonic Balancer in a 1989 Olds

Oldsmobile is a brand of car manufactured by General Motors. The Oldsmobile models that were in production in 1989 include the 88, 98, Cutlass Supreme and Toronado. All of these vehicles use a harmonic balancer, or crankshaft balancer, to keep the crankshaft stable as it rotates. The crankshaft balancer is a weighted disc mounted on the end of the crankshaft. The procedure for replacing the harmonic balancer in a 1989 Oldsmobile is generally the same for all models, except for the components you need to remove to access the crankshaft.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench to avoid starting the engine during the crankshaft balancer installation. Turn the drive belt tensioner counterclockwise to relieve the tension on the drive belt. Detach the drive belt from the crankshaft pulley.

2

Remove any additional components needed to access the crankshaft. This can include the shroud for the cooling fan, the cooling fan and the radiator, depending on the specific Oldsmobile model.

3

Disconnect the attaching bolt for the crankshaft damper with a socket wrench. Attach a puller to the crankshaft damper, and pull the damper from the crankshaft. Release the puller from the damper.

4

Mount the new crankshaft damper to the crankshaft, and fasten the mounting bolt for the damper with a socket wrench.

5

Install the components you removed in step two to access the crankshaft. Mount the drive belt to the crankshaft pulley, and turn the belt tensioner clockwise to apply tension to the drive belt. Connect the cable to the negative battery terminal with a socket wrench.