MANUAL UPDATE-A/C COMPRESSOR OVERHAUL (REPLACEMENT PG.)

VEHICLES AFFECTED: 1990 PONTIAC J-CAR

Page 1D3-6 attached should be inserted in the 1990 Pontiac Sunbird Service Manual in place of 1D2-6 which was placed in this Section in error.

Page 1D2-6 is correct for 1D2-6, but 1D2-6 was mistakenly entered in 1D3. Please correct your Service Manual.

3. Install pulley rotor and bearing puller guide J-33023 to the front head and install J-33020 pulley rotor and bearing puller down into the inner circle of slots in the rotor. Tum the J-33020 puller clockwise in the slots to engage the puller tangs with the segments between the slots in the rotor.

4. Hold the J-33020 puller in place and tighten the puller screw against the puller guide to remove the pulley rotor and bearing assembly.

5. To prevent damage to the pulley rotor during bearing removal the rotor hub must be properly supported.

Remove the forcing screw from J-33020 puller and, with the puller tangs still engaged in the rotor slots, invert the assembly onto a solid flat surface or blocks.

6. Drive the bearing out of the rotor hub with rotor bearing remover J-9398-A and J-29886 universal handle.

It is not necessary to remove the staking in front of the bearing to remove the bearing, however, it will be necessary to file away the old stake metal for proper clearance for the new bearing to be installed into the rotor bore or the bearing may be damaged.

Install or Connect

1. Place the pulley rotor on the J-35372 support block to fully support the rotor hub during bearing installation.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.