CAMPAIGN:CLUTCH LINKAGE MECHANISMS SLIPPAGE

GENERAL MOTORS HAS DETERMINED THAT SOME 1980 AND 1981 CHEVROLET CITATION MODELS EQUIPPED WITH MANUAL TRANSMISSIONS, MAY HAVE CLUTCH LINKAGE MECHANISMS WHICH WILL NOT PROPERLY HOLD SELF ADJUSTMENT. THESE MECHANISMS MAY ALLOW CLUTCH LINKAGE SLIPPAGE, OR MAY EXHIBIT AN AUDIBLE CLICKING OR RETCHETING WHEN THE CLUTCH PEDAL IS DEPRESSED. IMPROPER SELF ADJUSTMENT MAY ALLOW QUICKER ENGAGEMENT OF THE CLUTCH THAN THE VEHICLE OPERATOR MIGHT ORDINARILY EXPECT.

TO ELIMINATE THIS CONDITION A NEW CLUTCH ADJUSTING KIT WILL BE INSTALLED ON INVOLVED VEHICLES. INSTALLATION OF THIS KIT ELIMINATES THE SELF ADJUSTING FEATURE. THEREFORE, THE CLUTCH LINKAGE SHOULD BE ADJUSTED EVERY 5000 MILES (8000 KM) OR LESS AS REQUIRED. THIS ADJUSTMENT MAY BE ACCOMPLEISHED BY PULLING THE CLUTCH PEDAL UP LIGHTLY UNTIL IT STOPS AGAINST BUMPER AND THEN DEPRESSING THE PEDAL SLOWLY.

NOTE: TO AVOID CLUTCH LINKAGE DAMAGE, DO NOT CONTINUE TO PULL UP ON THE PEDAL AFTER IT STOPS.

THE CLUTCH ADJUSTING KIT WILL CONTAIN TWO COPIES OF THE INSTRUCTIONS WHICH EXPLAIN MANUAL CLUTCH LINKAGE ADJUSTMENT. THESE COPIES ARE TO BE GIVEN TO THE VEHICLE OWNER, AS EXPLAINED IN THE INSTALLATION INSTRUCTIONS CONTAINED IN EACH KIT.

VEHICLES INVOLVED

INVOLVED ARE ALL 1980 AND CERTAIN 1981 CHEVROLT CITATION MODELS EQUIPPED WITH A MANUAL TRANSMISSION WITHIN THE FOLLOWING VEHICLE IDENTIFICATION NUMBER BREAKPOINTS:

MODEL YEAR PLANT FROM THROUGH

1980 WILLOW RUN START OF PRODUCTION END OF PRODUCTION 1980 TARRYTOWN START OF PRODUCTION END OF PRODUCTION 1980 OKLAHOMA START OF PRODUCTION END OF PRODUCTION 1981 WILLOW RUN START OF PRODUCTION BW123325 1981 TARRYTOWN START OF PRODUCTION BT139934 1981 OKLAHOMA START OF PRODUCTION B6180598

INVOLVED VEHICLES HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBER COMPUTER LISTINGS. COMPUTER LISTINGS CONTAIN THE COMPLETE VEHICLE IDENTIFICATION NUMBER, OWNER NAME AND ADDRESS DATA, AND ARE FURNISHED TO THE INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN. OWNER NAME AND ADDRESS DATA FURNISHED WILL ENABLE DEALERS TO FOLLOW UP WITH OWNERS INVOLVED IN THIS CAMPAIGN.

THESE LISTINGS MAY CONTAIN OWNER NAMES AND ADDRESSES OBTAINED FROM STATE MOTOR VEHICLE REGISTRATION RECORDS. THE USE OF SUCH MOTOR VEHICLE REGISTRATION DATA FOR ANY OTHE PURPOSE IS A VIOLATION OF LAW IN SEVERAL STATES. ACCORDINGLY, YOU ARE URGED TO LIMIT THE USE OF THIS LISTING FOR THE FOLLOW UP NECESSARY TO COMPLETE THIS CAMPAIGN.

ANY DEALER NOT RECEIVING A COMPUTER LISTING WITH THE CAMPAIGN BULLETIN WAS NOT SHIPPED ANY INVOLVED VEHICLES.

OWNER NOTIFICATION

OWNERS WILL BE NOTIFIED OF THIS CAMPAIGN ON THEIR VEHICLES BY CHEVROLET MOTOR DIVISION (SEE COPY OF OWNER LETTER INCLUDED WITH THIS BULLETIN).

NOTE: OWNERS OF RECORD WHO HAVE PREVIOUSLY HAD P/N 14040523 CLUTCH SELF ADJUSTING KIT INSTALLED WERE NOT SENT OWNER NOTIFICATION.

DEALER CAMPAIGN RESPONSIBILITY

THIS RECALL CAMPAIGN IS TO BE PERFORMED AT NO CHARGE TO OWNERS ON ALL AFFECTED VEHICLES REGARDLESS OF TIME, MILEAGE, OR OWNERSHIP. DEALERS ARE TO INSPECT AND CORRECT ALL AFFECTED VEHICLES IN NEW AND USED VEHICLE STOCK PRIOR TO THEIR SALE.

WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR NEW OR USED VEHICLE INVENTORY, OR IT IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTURE, YOU SHOULD TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE.

SERVICE PROCEDURE

THE NEW CLUTCH ADJUSTING KIT P/N 14047653 INCLUDES A DETAILED INSTRUCTION SHEET AND ILLUSTRATIONS IDENTIFYING THE SERVICE PROCEDURE TO BE FOLLOWED IN MAKING THIS MODIFICATION. IN ADDITION WE ARE INCLUDING INSTRUCTIONS AND ILLUSTRATIONS AS PART OF THIS BULLETIN AS FOLLOWS:

1. RAISE HOOD. INSTALL FENDER COVER. REMOVE CLUTCH CABLE FROM TRANS/ AXLE LEVER AND CLUTCH PEDAL QUADRANT PER SECTION 7C OF SHOP MANUAL. AFTER LIFTING PAWL AND RAISING CABLE OUT OF QUADRANT GROOVE, PUSH CABLE AND FORWARD ON RIGHT SIDE OF QUADRANT SO CABLE IS FREE FROM PEDAL ASSEMBLY. REMOVE NEUTRAL START SWITCH FROM BOTH BRACKET ASSEMBLY. REMOVE PEDAL PIVOT NUT AND BOLT. REMOVE PEDAL ASSEMBLY FROM BRACKET ASSEMBLY AND THEN FROM VEHICLE.

2. CAREFULLY NOTE PART POSITIONS OF SELF-ADJUSTING MECHANISM AND PARTICULARLY LOCATIONS OF PAWL AND QUADRANT SPRINGS. REMOVE "E" RING AND DISASSEMBLE THE MECHANISM. DISCARD QUADRANT, PAWL, PAWL SPRING AND SUPPORT.

3. CLEAN ALL SURFACES OF PEDAL ASSEMBLY THAT CONTACT QUADRANT AND PAWL WITH SPECIAL ATTENTION TO PEDAL STUD WHICH IS PIVOT AXIS FOR PAWL.

4. USING NEW QUADRANT, PAWL, PAWL SPRING, AND SUPPORT CONTAINED IN REPAIR KIT, REASSEMBLE THE SELF ADJUSTING MECHANISM TO PEDAL AS FOLLOWS:

A. INSERT QUADRANT SPRING FULLY INTO QUADRANT POCKET AND ASSEMBLE QUADRANT PART WAY ONTO PEDAL ASSEMBLY WITH SPRING TANG INSERTED INTO PEDAL'S UPPER HOLE PER ILLUSTRATION. ROTATE QUADRANT APPROXIMATELY 90 DEGREES TO WIND UP SPRING AND ALLOW QUADRANT STOP TO CLEAR FRONT SIDE (CAR POSITION) OF PEDAL. THEN PUSH QUADRANT AND PEDAL ASSEMBLY TOGETHER HOOKING QUADRANT STOP ON FRONT OF PEDAL. FACES OF PEDAL AND QUADRANT SHOULD NOW BE IN CONTACT, WITH SPRING LOAD HOLDING STOP AND PEDAL IN CONTACT PER FIGURE 1.

B. ASSEMBLE PAWL SPRING OVER PAWL ENDS PER FIGURE 2, AND INSTALL AS UNIT ONTO STUD AT TOP OF PEDAL AS SHOWN. WIDE HOOK END OF SPRING MUST BE ASSEMBLED OVER FRONT OF PEDAL AS PAWL IS PUSHED ONTO PEDAL STUD WITH PAWL AND QUADRANT TEETH IN MESH. NOTE: AS ASSEMBLED, SPRING MUST FORCE PAWL TEETH INTO TEETH OF QUADRANT TO PREVENT FORWARD ROTATION OF QUADRANT.

C. PLACE SUPPORT ON UPPER PEDAL STUD AND ROTATE CLOCKWISE TO ENGAGE NARROW HOOK END OF PAWL SPRING, LOADING OUTER END OF PAWL SPRING. CONTINUE TO ROTATE UNTIL LARGE HOLE IN SUPPORT FITS ONTO LARGE HUB OF PEDAL AND SEATS AGAINST QUADRANT FACE. INSTALL "E" RING IN PEDAL STUD GROOVE.

CAUTION:

SUPPORT MUST BE ASSEMBLED WITH FLANGED EDGE AWAY FROM QUADRANT AS SHOWN IN FIGURE 3. ENDS OF PAWL SPRING MUST BE HOOKED AS SHOWN IN FIGURE 4.

D. LUBRICATE ONLY THE INNER AND OUTER DIAMETER SURFACES OF EACH BUSHING AND INSTALL BUSHINGS AND SPACER INTO PEDAL ASSEMBLY.

CAUTION:

INSURE THAT LEFT HAND BUSHING IS INSERTED INTO PEDAL ASSEMBLY HOLE AFTER SUPPORT IS INSTALLED ON PEDAL HUB AS FLANGE OF BUSHING ALSO RETAINS SUPPORT ON PEDAL HUB.

5. CHECK BRACKET IN VEHICLE TO INSURE THAT BUMPER, SHOWN IN FIGURE 5, IS IN PLACE ON PEDAL STOP. INSTALL IF MISSING. ASSEMBLE PEDAL TO MOUNTING BRACKET BY INSTALLING BOLT AND NUT AND TIGHTENING NUT TO 30-50 N.M. (22-37 LBS. FT.). NUT IS ASSEMBLED ON STEERING COLUMN SIDE OF BARCKET.

6. CHECK OPERATION OF PAWL AND QUADRANT BY OBSERVING THAT PAWL DISENGAGES WHEN PEDAL IS RAISED TO RELEASED POSITION (PEDAL AGAINST BRACKET BUMPER) AND THAT QUADRANT CAN BE ROTATED FORWARD OFF STOP WITH PAWL DISENGAGED. DO NOT LET QUADRANT SNAP BACK AS QUADRANT CAN BE DAMAGED. CHECK THAT PEDAL ASSEMBLY SWINGS FREELY ON ITS PIVOT BOLT.

7. ROUTE CABLE END BACK ON RIGHT SIDE BETWEEN QUADRANT AND PEDAL ASSEMBLY. LIFT PAWL AND RAISE CABLE INTO QUADRANT GROOVE AND CONNECT CABLE END TO QUADRANT AS SHOWN IN FIGURE 6. INSURE THAT CABLE IS ROUT- ED UNDER TANG ON BRACKET THAT CONTACTS PAWL, AS SHOWN IN ILLUSTRATION.

8. HOLD PEDAL ASSEMBLY AGAINST BUMPER TO DISENGAGE PAWL AND DETENT TEETH DURING REASSEMBLY OF LOWER END OF CABLE INTO TRANS/AXLE LEVER AND MOUNTING BRACKET BEING CAREFUL NOT TO PULL MORE THAN 20 KG (44 LBS.) ON CABLE OR SELF ADJUSTING QUADRANT CAN BE DAMAGED.

9. REINSTALL NEUTRAL START SWITCH TO PEDAL AND BRACKET AND RECONNECT WIRE CONNECTOR TO SWITCH.

10. CHECK OVERALL CLUTCH OPERATION PER SECTION 7C IN SHOP MANUAL. PRIOR TO VEHICLE DELIVERY TO CUSTOMER, LIFT CLUTCH PEDAL AGAINST BUMPER STOP TO RESET LINKAGE AND DEPRESS PEDAL SEVERAL TIMES FOR FINAL ADJUSTMENT.

11. PLACE ONE COPY OF NOTICE 14047652 IN "OWNER'S MANUAL" AND ATTACH SECOND COPY OF 14047652 TO OWNER'S COPY OF "REPAIR ORDER."

12. INSTALL "CAMPAIGN IDENTIFICATION LABEL", ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS BULLETIN.

PARTS INFORMATION

CLUTCH ADJUSTING KITS P/N 14047653 REQUIRED TO COMPLETE THIS MODIFICATION ARE TO BE OBTAINED BY THE DEALER FROM GENERAL MOTORS WAREHOUSING AND DISTRIBUTION CENTERS. GMWDD WILL ISSUE A SALES INFORMATION BULLETIN ON THE AVAILABILITY OF PARTS.

EACH PARTS KIT P/N 14047653 CONSISTS OF THE FOLLOWING:

PART NUMBER QUANTITY DESCRIPTION

14040589 1 PER KIT SPRING,(LIGHT GREEN)

474690 1 PER KIT PAWL

14036183 1 PER KIT QUADRANT

14004822 1 PER KIT SUPPORT

14047654 1 PER KIT INSTRUCTION SHEET

14047652 2 PER KIT OWNERS NOTICE

CLAIM INFORMATION

SUBMIT A PRODUCT CLAIM WITH THE INFORMATION INDICATED BELOW:

PARTS FAILED **PARTS FAILURE LABOR LABOR *OTHER COUNT PART NO. ALLOWANCE CODE OPERATION HOURS HOURS

1 14047653 00 V0960 .4 .1

DESCRIPTION: INSTALL CLUTCH ADJUSTING KIT P/N 14047653 ACCORDING TO THE INSTRUCTIONS CONTAINED IN THE PARTS KIT.

* CAMPAIGN ADMINISTRATIVE ALLOWANCE

** THE PARTS ALLOWANCE SHOULD BE THE SUM TOTAL OF THE CURRENT GMWDD DEALER NET PLUS 30% OF ALL PARTS REQUIRED FOR THE REPAIR.

DEALERS WILL AUTOMATICALLY RECEIVE THE CORRECT PARTS AND LABOR ALLOWANCE BASED ON THE LABOR OPERATION PERFORMED.

REFER TO THE CHEVROLET CLAIMS PROCESSING MANUAL FOR DETAILS ON PRODUCT CAMPAIGN CLAIM SUBMISSION.

CAMPAIGN IDENTIFICATION LABEL

EACH VEHICLE MODIFIED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS PRODUCT CAMPAIGN BULLETIN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL". EACH LABEL PROVIDES A SPACE TO INCLUDE THE FIVE DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR BALLPOINT PEN.

EACH "CAMPAIGN IDENTIFICATION LABEL" IS TO BE LOCATED ON THE RADIATOR CORE SUPPORT IN AN AREA WHICH WILL BE VISIBLE WHEN THE VEHICLE IS BROUGHT IN FOR PERIODIC SERVICING BY THE OWNER.

APPLY "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN DRY SURFACE.

ADMINISTRATIVE PROCEDURE

REFER TO THE CURRENT CHEVROLET SERVICE POLICIES AND PROCEDURES MANUAL AND CLAIMS PROCESSING MANUAL FOR CAMPAIGN HANDLING AND ADMINISTRATIVE PROCEDURES.

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.