SMU - SECTION 6B - ENGINE COOLING AND RADIATOR. Chevrolet Chevy K Pickup

SUBJECT: SERVICE MANUAL UPDATE - SECTION 6B - ENGINE COOLING AND RADIATOR - NEW DRIVE BELT SERVICE PROCEDURE

MODELS: 1994-96 CHEVROLET AND GMC C/K MODELS WITH 6.5L DIESEL ENGINES (VINS F, S - RPOS L65, L56)

THIS BULLETIN UPDATES SECTION 6B "COOLING AND RADIATOR" OF THE 1994-96 C/K SERVICE MANUALS. THE CURRENT SERVICE MANUAL INFORMATION HAS BEEN CHANGED TO PREVENT BREAKAGE OF THE ENGINE DRIVE BELT TENSIONER WHEN REMOVING AND REPLACING THE DRIVE BELT. THIS BULLETIN APPLIES ONLY TO VEHICLES EQUIPPED WITH DIESEL ENGINES.

DRIVE BELT SERVICE

REMOVE OR DISCONNECT (FIGURE 1)

1. USE A 1/2 INCH BREAKER BAR IN THE SQUARE HOLE PROVIDED IN THE BELT TENSIONER TO ROTATE TENSIONER COUNTERCLOCKWISE AND RELEASE BELT TENSION.

NOTICE: DO NOT ROTATE THE TENSIONER CLOCKWISE. ALSO, DO NOT ALLOW THE TENSIONER TO SNAP INTO THE "FREE" POSITION. EITHER OF THESE CONDITIONS COULD DAMAGE THE BELT AND/OR THE TENSIONER.

2. BELT.

INSTALL OR CONNECT

1. ROUTE BELT OVER ALL OF THE PULLEYS EXCEPT THE BELT TENSIONER.

2. USE A 1/2 INCH BREAKER BAR IN THE SQUARE HOLE PROVIDED IN THE BELT TENSIONER TO ROTATE THE TENSIONER COUNTERCLOCKWISE TO THE RELEASED POSITION.

3. BELT OVER TENSIONER PULLEY. SLOWLY ALLOW TENSIONER TO MOVE BACK INTO INSTALLED POSITION.

4. CHECK THE BELT FOR CORRECT "V" GROOVE TRACKING INTO EACH PULLEY.

FIGURES: 1 ATTACHMENTS: 0

Object Number: 82631 Size: FS

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.