GENERATOR BELT DAMAGE BELT CONTACTS BOLT HEAD

Models Affected: 1982-84 Skylark & Centurys Equipped with 2.5L L-4 Engines (Vin Code R)

NOTICE: This Bulletin supersedes Bulletin 84-6-21 dated March 1984 and reflects a new belt part number. Please discard original Bulletin and replace it with this one.

Several causes may cmtribute to, or result in, 2.5L engine alternator belt damge.

1. Non air-conditioned cars use a flat washer under the inboard power steering bolt head (See Illustration). If the vehicle is equipped with air conditioning, this washer should be removed to prevent the bolt head from possible contact with the alternator belt.

2. The power steering pump pulley may have been pressed on too far and the alternator belt is rubbing on the back of the power steering pulley.

3. The alternator pulley may have a sharp edge or ridge in the "V" of the pulley.

If a new belt is required for one of these engines, order service part number 10034799.

NOTE: Replacement belts should be tensioned to 650 N (145 lbs.)

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.