For 1990-2009 cars

# SMU - SECTION 6A - CLARIFICATION OF VALVE

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 6A - CLARIFICATION OF VALVE SPRING ROTATOR ASSEMBLY (INTAKE VALVE) VERSUS VALVE SPRING SEAT ASSEMBLY (EXHAUST VALVE)

#### MODELS: 1996 BUICK SKYLARK 1996 CHEVROLET CAVALIER 1996 OLDSMOBILE ACHIEVA 1996 PONTIAC GRAND AM, SUNFIRE WITH 2.4L ENGINE (VIN T - RPO LD9)

THIS BULLETIN IS TO CLARIFY THE FOLLOWING PROCEDURES FOUND IN SECTION 6A OF THE SERVICE MANUAL:

- EXHAUST VALVE SPRING, ROTATOR OR VALVE STEM SEAL (HEAD ON ENGINE)

UNDER "DISASSEMBLE" AND "ASSEMBLE" PROCEDURES, REPLACE "ROTATOR, REFER TO FIGURE 47" WITH "VALVE SPRING SEAT".

"N" CAR - PAGE 6A7-32 "J" CAR - PAGE 6A7-33

- VALVE, SPRING, ROTATOR OR VALVE STEM SEAL (WITH HEAD REMOVED)

UNDER "REMOVE OR DISCONNECT" AND "INSTALL OR CONNECT" PROCEDURES, REPLACE "ROTATOR" WITH "ROTATOR ASSEMBLY (INTAKE VALVE), VALVE SPRING SEAT ASSEMBLY (EXHAUST VALVE)".

"N" CAR - PAGE 6A7-40 "J" CAR - PAGE 6A7-39

INCORRECT INSTALLATION OF THE ROTATOR ASSEMBLY AND VALVE SPRING SEAT WILL CAUSE IMPROPER VALVE SPRING INSTALL HEIGHT.

FIGURES: 00 ATTACHMENTS: 00

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.

COPYRIGHT 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.