INFO. ON NEW VALVE STEM SEALS REQUIRE NEW INST. TOOL. Buick LeSabre 1996

SUBJECT: INFORMATION ON NEW VALVE STEM SEALS REQUIRE NEW INSTALLATION TOOL (USE J-42863)

ENGINE VIN CODE MODELS: 1995-97 BUICK PARK AVENUE, RIVIERA (VIN K) 1996-97 BUICK LESABRE, REGAL (VIN K) 1996-97 BUICK PARK AVENUE, RIVIERA (VIN 1) 1997 BUICK REGAL (VIN 1) 1995-97 CHEVROLET CAMARO (VIN K) 1995-96 OLDSMOBILE NINETY EIGHT (VIN K) 1995-97 OLDSMOBILE EIGHTY EIGHT, LSS (VIN K) 1996-97 OLDSMOBILE LSS (VIN 1) 1997 OLDSMOBILE REGENCY (VIN K) 1995-97 PONTIAC BONNEVILLE, FIREBIRD (VIN K) 1996-97 PONTIAC GRAND PRIX (VIN K) 1996-97 PONTIAC BONNEVILLE (VIN 1) 1997 PONTIAC GRAND PRIX (VIN 1) WITH 3800 ENGINE (VIN 1, K - RPO L67, L36)

INFORMATION:

POWERTRAIN ENGINEERING HAS DEVELOPED IMPROVED VALVE STEM SEALS FOR 3800 SERIES II ENGINES. THE IMPROVED VALVE STEM SEALS SUPERSEDE ORIGINAL EQUIPMENT TYPE SEALS AND THEREFORE ARE THE ONLY REPLACEMENT SEALS AVAILABLE FROM SPO. VALVE SEAL INSTALLATION TOOL J-42863 (BLUE COLOR) HAS BEEN DEVELOPED TO PROPERLY INSTALL THE IMPROVED SEALS. TOOL J-41512 (BLACK COLOR) WILL NOT INSTALL THE NEW STYLE SEALS PROPERLY AND SHOULD BE DISCARDED. TOOL J-42863 IS AN ESSENTIAL TOOL AND WILL AUTOMATICALLY BE SHIPPED TO APPROPRIATE DEALERS/RETAILERS VIA KENT-MOORE COMPANY BEGINNING JUNE 19, 1997.

VALVE SEAL INSTALLER J-42863 SERVICE PROCEDURE: 1. LUBRICATE THE VALVE GUIDE TOWER AND VALVE STEM WITH MOTOR OIL BEFORE INSTALLING THE SERVICE SEALS.

2. START VALVE SEAL ON THE VALVE STEM WITH A TWISTING MOTION AND PUSH THE SEAL DOWN UNTIL THE RUBBER JACKET TOUCHES THE TOP OF THE GUIDE.

3. PLACE TOOL J-42863 OVER THE VALVE SEAL (FLAT SURFACE TOWARD VALVE SEAL).

4. TAP THE TOP (TAPERED END) OF J-42863 WITH A PLASTIC MALLET UNTIL THE SEAL IS RESTING FLUSH ON TOP OF THE VALVE GUIDE. REPEAT THE TAPPING PROCEDURE A SECOND TIME TO INSURE THAT THE SEAL IS SEATED PROPERLY.

PARTS INFORMATION:

MODEL VIN SEAL PART YEAR CODE DESCRIPTION COLOR NUMBER 1995-97 K SEAL - INTAKE VALVE BLUE 24507690 1995-97 K SEAL - EXHAUST VALVE GREEN 24507691 1996-97 1 SEAL - INTAKE VALVE BLUE 24507690 1996-97 1 SEAL - EXHAUST VALVE GREEN 24507691

WARRANTY INFORMATION:

LABOR OPERATION DESCRIPTION LABOR TIME SPRING, CAP AND/ OR SEAL, VALVE - REPLACE J0540 ONE CYL - RIGHT BANK USE PUBLISHED LABOR TIMES J0541 ONE CYL - LEFT BANK USE PUBLISHED LABOR TIMES J0547 BOTH BANKS USE PUBLISHED LABOR TIMES ADD-A EACH ADDITIONAL CYL USE PUBLISHED LABOR TIMES ADD-B REPLACE ALL USE PUBLISHED LABOR TIMES

FIGURES: 0 ATTACHMENTS: 0

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. DISCLAIMER