SUPPLEMENT: VARIABLE DISPLACEMENT A/C 'O' RING. Chevrolet Celebrity 1985

Model and Year: 1985-1986 CAVALIER AND CELEBRITY

TO: ALL CHEVROLET DEALERS

The following information provides a revised Page 2, attachment 1 for Chevrolet Dealer Service Bulletin 86-87 (Section 1B) dated May, 1986. This supplement should be attached to bulletin 86-87. Changes are indicated by asterisk on the left side of the page.

HARRISON RADIATOR DIV., GMC V5 COMPRESSOR SERVICE PARTS LIST

Complete Compressor Models

1 of 3 1 1 1 1 1 1 1 1 1 1 Date: 17MY85 3 3 3 3 3 1 1 1 1 1 Part Number 4 4 5 5 5 4 5 1 2 4 QTY. Description AMP AC-Delco 1 1 5 0 3

Compressor Service (W/O Clutch)

* 1 9.2CU.IN.,HPCO,HSLP,3.0 AMP 2724327 15-2348 * * 1 9.2CU.IN.,HPCO,HSLP,11.6 MA. 2724328 15-2349 * 1 8.3CU.IN.,HPCO,HSLP,3.0 AMP 2724345 15-2382 * *

Head,Compressor Rear, Kit-2 Switch 1 Type 2724329 15-2350 * * * * *

1K Head,rear (NAS 6557619) 1K O-Ring, Head 6557662 6K Gasket, Bolt (NAS 6557379) 1K Gasket, Rear Head (NAS 6557626) 1K O-Rings Kit,Control Valve 2724330 2K Ring, Retainer-Switch 6556408 2K O-Ring,Switch 6556407 1K Instruction Sheet (NAS 2722121)

O-Rings & Retainer-Control Valve 1 Kit 2724330 * * * * * 1K O-Rings (NAS 6557658,6557659,6557661,6557662) 1K Ring, Retainer 6556408

* 1 O Ring, Front and Rear Head 6557662 15-2343 * * * * *

1 Control Valve Asm.Kit 2724331 15-5310 * * * * *

1K Control Valve Asm. (NAS 6551918) 1K Ring, Retainer 6556408

K = Part of Kit

NAS = Not Available Seperately

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.