NEW CAMSHAFT SPROCKET/WRENCH DESIGN - INFORMATION

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ENGINE APPLICATIONS: SUBJECT: 2.3L (RPOS LG0, LD2, L40) NEW CAMSHAFT SPROCKET AND CAMSHAFT SPROCKET WRENCH DESIGN

ENGINE VIN (MODELS): VEHICLE APPLICATIONS: A, D, 3 1992 MODEL YEAR L AND N CARS ______________________________________________________________________

SERVICE INFORMATION:

LATER PRODUCTION 1992 2.3L ENGINES HAVE A POWDERED METAL DESIGN CAMSHAFT SPROCKET. TO SERVICE THE NEW CAMSHAFT SPROCKET REQUIRES THE CAMSHAFT SPROCKET WRENCH J 39579. THE CAMSHAFT SPROCKET WRENCH J 39579 IS USED IN THE SAME MANNER AS THE PREVIOUS DESIGN, J 36013. REFER TO THE FIGURE FOR NEW SPROCKET AND TOOL DESIGN.

THE CAMSHAFT SPROCKET WRENCH J 39579 WILL BE DELIVERED TO DEALERS IN SEPTEMBER 1992. UNTIL J 39579 IS AVAILABLE, IT CAN BE LOANED FROM KENT-MOORE BY CALLING 1-800-345-2233.

NOTE: TOOL AVAILABILITY IS LIMITED TO DEALERS WITH AN EMERGENCY SITUATION, SUCH AS A DOWN VEHICLE.

WHEN SERVICING AN EARLY 1992 PRODUCTION CAMSHAFT SPROCKET, REPLACE IT WITH THE NEW DESIGNED CAMSHAFT SPROCKET, GM P/N 24570973.

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER." THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS OCCURRING 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 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.

COPYRIGHT 1992, GM POWERTRAIN DIVISION, GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.