CAMPAIGN: INJ. PUMP GOVERNOR WEIGHT RETAINER ASSEMBLY

THE NATIONAL TRAFFIC AND MOTOR VEHICLE SAFETY ACT, AS AMENDED, PROVIDES THAT EACH VEHICLE WHICH IS SUBJECT TO A RECALL CAMPAIGN OF THIS TYPE MUST BE ADEQUATELY REPAIRED WITHIN A REASONABLE TIME AFTER THE OWNER HAS TENDERED IT FOR REPAIR. FAILURE TO ADEQUATELY REPAIR WITHIN 60 DAYS AFTER TENDER OF A VEHICLE IS PRIMA FACIE EVIDENCE OF FAILURE TO REPAIR WITHIN A REASONABLE TIME. IF THE CONDITION IS NOT ADEQUATELY REPAIRED WITHIN A REASONABLE TIME, THE OWNER MAY BE ENTITLED TO AN IDENTICAL OR REASONABLY EQUIVALENT VEHICLE AT NO CHARGE OR TO A REFUND OF THE PURCHASE PRICE LESS A REASONABLE ALLOWANCE FOR DEPRECIATION.

IN ORDER TO AVOID HAVING TO PROVIDE THESE BURDENSOME SOLUTIONS, EVERY EFFORT MUST BE MADE TO PROMPTLY SCHEDULE AN APPOINTMENT WITH EACH OWNER AND TO REPAIR HIS VEHICLE AS SOON AS POSSIBLE. AS YOU WILL SEE IN READING THE ATTACHED COPY OF THE LETTER WHICH IS BEING SENT TO OWNERS, THE OWNER IS BEING INSTRUCTED TO CONTACT THE NEAREST CADILLAC ZONE OFFICE IF HIS DEALER DOES NOT REMEDY THE CONDITION WITHIN FIVE DAYS OF THE MUTUALLY AGREED UPON SERVICE DATE. IF THE CONDITION IS NOT REMEDIED WITHIN A REASONABLE TIME, HE IS INSTRUCTED ON HOW TO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION.

DEFECT INVOLVED

GENERAL MOTORS HAS DETERMINED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY EXISTS IN SOME EARLY PRODUCTION 1982 CADILLAC VEHICLES EQUIPPED WITH 5.7L V-8 DIESEL ENGINES. UNDER CERTAIN VEHICLE OPERATING CONDITIONS, THE GOVERNOR WEIGHT RETAINER IN THE INJECTION PUMP MAY FAIL AND THE THROTTLE VALVE COULD STICK, PREVENTING RETURN TO IDLE AND SHUT DOWN OF THE ENGINE BY THE OPERATOR OF THE VEHICLE. THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND A VEHICLE CRASH COULD OCCUR WITHOUT PRIOR WARNING.

VEHICLES INVOLVED

1982 CADILLAC VEHICLES EQUIPPED WITH THE 5.7L V-8 DIESEL ENGINE WITHIN THE FOLLOWING VIN RANGE REQUIRE THIS CAMPAIGN (CADILLAC RECORDS INDICATE THAT A TOTAL OF 10,030 VEHICLES ARE AFFECTED):

C-C9100001 THROUGH C9131004 E-CE600001 THROUGH CE613329 K-CE680001 THROUGH CE686275

SOME VEHICLES WITHIN THE VIN RANGE LISTED MAY HAVE HAD THE CAMPAIGN CORREC- TION PERFORMED IN THE ASSEMBLY PLANT BEFORE THE VEHICLE WAS SHIPPED. THESE CORRECTED VEHICLES CAN BE IDENTIFIED BY A RED "C" STICKER ON THE FRONT OF THE LEFT VALVE COVER, OR BY A DAUB OF RED PAINT ON THE PUMP WRENCH TIMING BOSS. (SEE SECTION A OF THE SERVICE PROCEDURE FOR FURTHER DETAILS.)

OWNER NOTIFICATION

OWNERS OF ALL AFFECTED VEHICLES WILL BE NOTIFIED BY CADILLAC OF THIS CAMPAIGN. A COPY OF THE OWNER LETTER IS ATTACHED. A LIST OF THOSE VEHICLES INVOLVED, WHICH OUR RECORDS INDICATE WERE SOLD BY YOU, IS ENCLOSED FOR YOUR FOLLOW UP. THIS LISTING MAY CONTAIN OWNER NAMES AND ADDRESSES OBTAINED FROM STATE MOTOR VEHICLE REGISTRATION RECORDS. THE USE OF SUCH MOTOR VEHICLE REGISTRATION DATA FOR ANY OTHER 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.

PARTS INFORMATION

ONE GOVERNOR WEIGHT RETAINER ASSEMBLY KIT P/N 22518269 IS REQUIRED FOR EACH VEHICLE INVOLVED AND SHOULD BE OBTAINED FROM THE PARTS DISTRIBUTION CENTERS OF GENERAL MOTORS WAREHOUSING DISTRIBUTION DIVISION IN THE NORMAL MANNER.

IF THERE IS DIFFICULTY IN OBTAINING THIS PART USING NORMAL ORDERING PROCEDURES, THE DEALER MAY PLACE A C.I.O. ORDER USING ADVISE CODE "2" WITH NO SPECIAL INSTRUCTION CODE. THE PART MAY ALSO BE ORDERED ON A V.I.P. ORDER; HOWEVER, UNLESS PRIOR ZONE APPROVAL IS OBTAINED, THE DEALER WILL BE REQUIRED TO ABSORB ANY SURCHARGE INVOLVED UNDER THE V.I.P. SYSTEMS.

IF ANY PROBLEMS ARE ENCOUNTERED IN OBTAINING THIS PART, PLEASE FOLLOW THE THREE STEP PROCEDURE AS STATED IN THE GM PARTS EMERGENCY ORDER FOLLOW UP PROCEDURE (REFER TO GM PARTS POLICY AND PROCEDURE MANUAL, EXHIBIT 20, SECTION IV, PAGE 38).

DEALER CAMPAIGN RESPONSIBILITY

DEALERS ARE TO PERFORM THIS RECALL CAMPAIGN, AT NO CHARGE TO THE OWNER, ON ALL AFFECTED VEHICLES REGARDLESS OF TIME, MILEAGE, OR OWNERSHIP AND ARE TO CORRECT ALL AFFECTED VEHICLES IN DEALER NEW AND USED CAR INVENTORY PRIOR TO THEIR SALE.

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

IN ADDITION, DEALERS ARE TO PERFORM THE CAMPAIGN ON ALL AFFECTED VEHICLES AS THEY ARE BROUGHT IN FOR ANY KIND OF SERVICE UNTIL ALL AFFECTED VEHICLES HAVE BEEN CORRECTED.

SPECIAL INSTRUCTIONS FOR INJECTION PUMP SERVICE

THE ORIGINAL CAMPAIGN BULLETIN WAS WRITTEN WITH THE ASSUMPTION THAT ALL CAMPAIGN CORRECTIONS WOULD BE PERFORMED BY CADILLAC DEALERS. THE PURPOSE OF THIS SECTION IS TO ADDRESS DEALER COMPLETION OR SUBLET OF THE CAMPAIGN CORRECTION. DEALERS SHOULD BE AWARE THAT, IF THE INJECTION PUMP IS PROVIDED TO STANADYNE (ROOSA MASTER), THEY WILL PERFORM THE GOVERNOR WEIGHT RETAINER ASSEMBLY CORRECTION; HOWEVER, ROOSA MASTER WILL CHARGE DEALERS FOR PERFORMING THE CORRECTION. DEALER CREDIT WILL BE ISSUED BY CADILLAC FOR SERVICING INJECTION PUMPS AS OUTLINED BELOW.

A. DEALERS ARE ENCOURAGED TO PERFORM THE CAMPAIGN CORRECTION IN THEIR DEALER SHIP ACCORDING TO THE SERVICE PROCEDURES OUTLINED IN THIS BULLETIN. DEALERS SHOULD SUBMIT A PROPERLY PREPARED WARRANTY CLAIM AS DETAILED IN THE CREDIT SECTION OF THIS BULLETIN.

B. SOME DEALERS MAY FIND IT NECESSARY TO SUBLET THE INJECTIONPUMP TO ROOSA MASTER FOR PERFORMANCE OF THE CAMPAIGN CORRECTION. DEALERS WHO CHOOSE THIS ALTERNATIVE SHOULD PROVIDE THIS PUMP AND A GOVERNOR WEIGHT RETAINER PARTS KIT (P/N 23518269) TO THEIR LOCAL ROOSA MASTER REPAIR STATION FOR SERVICING. UPON COMPLETION OF THE CAMPAIGN CORRECTION, ROOSA MASTER SHOULD RETURN THE ORIGINAL PUMP ALONG WITH THE PARTS REMOVED AND AN INVOICE DETAILING THE SERVICE CHARGE. DEALERS WILL BE CHARGED FOR THE REQUIRED LABOR BASED UPON ROOSA MASTER'S CURRENT SUGGESTED LABOR TIME OF .9 HR. DEALERS SHOULD SUBMIT A PROPERLY PREPARED WARRANTY CLAIM AS DETAILED IN THE CREDIT SECTION OF THIS BULLETIN.

SERVICE PROCEDURE

THE FRICTION DRIVE GOVERNOR WEIGHT RETAINER ASSEMBLY IS TO BE REPLACED WITH A PELLETHANE GOVERNOR WEIGHT RETAINER ASSEMBLY (SEE FIGURE 1).

A. INSPECTION ONLY:

IF THE VEHICLE IDENTIFICATION NUMBER FALLS WITHIN THE ABOVE RANGE, OPEN THE HOOD AND DETERMINE IF A REC "C" STICKER IS ON THE FRONT OF THE LEFT VALVE COVER OR A DAUB OF RED PAINT IS ON THE PUMP WRENCH TIMING BOSS. IF EITHER OF THESE IDENTIFYING MARKS ARE PRESENT, INSTALL A CAMPAIGN COMPLE- TION LABEL AS DESCRIBED IN THIS BULLETIN.

TO DETERMINE THE LOCATION OF THE DAUB OF RED PAINT THAT IDENTIFIES A CORRECTED PUMP, REFER TO FIGURE 1A. THE PAINT IS LOCATED ON THE TOP OF THE TIMEING WRENCH BOSS WHICH IS ON THE FRONT OF THE HOUSING AS ILLUSTRAT ED. THERE MAY BE RED SEALER ON THE COVER OR OTHER PARTS OF THE HOUSING, BUT THIS DOES NOT INDICATE A CORRECTED PUMP AND SHOULD NOT BE MISTAKEN FOR THE RED PAINT ON THE TIMING WRENCH BOSS. SHOULD THERE STILL BE DOUBT AFTER INSPECTING FOR THE "C" STICKER AND RED PAINT, THE CAMPAIGN CORRECTION SHOULD BE PERFORMED.

B. INSPECTION AND CORRECTION:

IF THE ABOVE DESCRIBED IDENTIFYING MARKS CANNOT BE LOCATED ON THE LEFT VALVE COVER OR ON THE PUMP WRENCH TIMING BOSS, THE SERVICE PROCEDURE MUST BE PERFORMED.

MANY DEALERS HAVE ATTENDED THE ADVANCE DIESEL CLASS OR HAVE OTHERWISE BEEN TRAINED TO CHANGE GOVERNOR WEIGHT RETAINER RINGS. THESE PROCEDURES ARE ALMOST IDENTICAL TO THE TRAINING YOU HAVE PREVIOUSLY RECEIVED: HOWEVER, THERE ARE SOME CHANGES THAT NEED YOUR ATTENTION (REFER TO STEPS 7 AND 15 OF THE ASSEMBLY PROCEDURE).

DEALERS SHOULD FOLLOW THE STEP-BY-STEP PROCEDURES. THERE ARE NO SPECIAL TOOLS REQUIRED; HOWEVER, A PLATE TO MOUNT THE PUMP MAKES THE JOB CONSIDERABLY EASIER. NO ATTEMPT WHATSOEVER SHOULD BE MADE TO MOUNT THE PUMP IN A VISE BY CLAMPING ON THE PUMP ATTACHING FLANGE. A TEMPLATE SHOWING A PUMP MOUNTING PLATE IS INCLUDED IN THE EVENT YOU SHOULD WISH TO HAVE ONE MADE (SEE FIGURE 2). MOUNTING PLATES ARE AVAILABLE FROM KENT MOORE (TOOL NUMBER J-29692A) AND BORROUGHTS TOOL AND EQUIPMENT CO. (TOOL NUMBER BT-8046 OR BT-8046P). AN ALTERNATIVE MOUNTING METHOD USES VACUUM BOOSTER TOOL J-9504-01 (SEE FIGURE 2A) OR DIFFERNETIAL SEAL TOOL J-8614-11.

THE FUEL INJECTION PUMP AND MOUNTING PLATE MUST BE MOUNTED IN THE VISE WITH THE FUEL DISTRIBUTION HEAD END LOWER THAN THE ATTACHING FLANGE END, AS SHOWN IN FIGURE 11. THIS FACILITATES REMOVAL AND INSTALLATION OF THE GOVERNOR ASSEMBLY BY PREVENTING THE WEIGHTS FROM FALLING OUT OF THE RETAINER CAGE.

THE DIESEL INJECTION PUMP IS A COMPLEX ITEM, CONTAINING CLOSE TOLERANCE PIECES. CEANLINESS IS ESSENTIAL. YOUR TOOLS AND WORK AREA MUST BE CLEAN. INJECTION PUMP PARTS SHOULD BE PLACED IN CLEAN METAL TRAYS ONLY.

DISASSEMBLY

1. OBSERVE POSITION OF TIMING ALIGNMENT MARKS ON THE ADAPTER AND MOUNTING FLANGE SO THE PUMP CAN BE REINSTALLED IN THE SAME POSITION. REMOVE THE INJECTION PUMP FROM THE VEHICLE FOLLOWING THE PROCEDURE OUTLINED IN SECTION 6C5 OF THE 1982 CADILLAC SERVICE INFORMATION MANUAL AND SERVICE- MAN BULLETIN 82-3.

2. SCRIBE A LINE ON THE VACUUM REGULATOR VALVE AND PUMP BODY SO THE VALVE CAN BE REINSTALLED WITHOUT RESETTING. REMOVE THE VALVE.

3. INSTALL PLUGS IN THE DISCHARGE PORTS, FUEL INLET PORT AND RETURN LINE PORT. CLEAN THE PUMP THOROUGHLY ON THE OUTSIDE. ANY CLEANER THAT DOES NOT IRRITATE THE SKIN SHOULD BE SATISFACTORY. IF A CLEANER IS NOT AVAILABLE, IMMERSE THE PUMP IN DIESEL FUEL, BRUSH CLEAN, AND BLOW DRY.

4. INSTALL THE PUMP ON THE MOUNTING PLATE. SECURE THE PUMP AND MOUNTING PLATE IN A VISE WITH THE REAR OF PUMP TILTED DOWNWARD (SEE FIGURE 11).

5. REMOVE THE THREE GOVERNOR COVER SCREWS AND REMOVE THE COVER. REFER TO FIGURE 3. CATCH DIESEL FUEL IN DRAIN PAN WHEN COVER IS REMOVED.

6. REMOVE THE GUIDE STUD AND GUIDE STUD WASHER. REMOVE THE MIN-MAX GOVERNOR ASSEMBLY. SEE FIGURES 4 AND 5. IF THE GUIDE STUD WASHER HAS A RUBBER INSERT IN IT, DO NOT DISCARD; IF IT IS A SOLID ALUMINUM TYPE, DISCARD.

7. INSTALL TOOL J-29601 ON THE THROTTLE SHAFT AND TIGHTEN THUMB SCREW. REMOVE THE TOOL (SEE FIGURE 6). NOTE: THIS SETTING IS USED TO POSITION THE ADVANCE CAM DURING REASSEMBLY.

8. REMOVE THE VACUUM REGULATOR VALVE DRIVE PIN AND ADVANCE CAM SCREW. REMOVE THE THROTTLE SHAFT AND ADVANCE CAM BEING CAREFUL NOT TO LOSE THE MYLAR WASHER BETWEEN THE CAM AND HOUSING. SEE FIGURE 7 AND 19.

9. REMOVE THE GOVERNOR LINKAGE ASSEMBLY AND THE METERING VALVE. SEE FIGURE 8.

10. USING A 1/8" ALLEN WRENCH, REMOVE THE HOUSING VENT SCREW. REFER TO FIGURE 9.

11. REMOVE ONE HEAD LOCKING SCREW AND LOOSEN THE OTHER, TURN PUMP UPSIDE DOWN AND DRAIN THE REMAINING FUEL. REMOVE THE HEAD LOCATING SCREW. SEE FIGURE 10.

12. REMOVE THE ADVANCE SCREW HOLE PLUG, LIFT OUT THE CAM ADVANCE PIN, USING A PAIR OF NEEDLE NOSE PLIERS. SEE FIGURE 11.

13. ROTATE THE PUMP UPRIGHT AND REMOVE ONE REMAINING HEAD LOCKING SCREW. REMOVE THE HEAD AND ROTOR ASSEMBLY FROM THE PUMP HOUSING BY GRASPING THE HEAD WITH BOTH HANDS AND ROTATING BACK AND FORTH WHILE PULLING. REFER TO FIGURE 12.

14. REMOVE THE GOVERNOR WEIGHTS, THRUST SLEEVE AND THRUST WASHER AND REMOVE THE SNAP RING. REMOVE THE GOVERNOR WEIGHT RETAINER ASSEMBLY. SEE FIGURE 13 AND 14. NOTE: DO NOT REMOVE ANY OTHER PARTS FROM THE HEAD AND ROTOR.

ASSEMBLY

1. REMOVE OLD HYDRAULIC HEAD SEAL AND INSTALL A NEW HYDRAULIC HEAD SEAL PROVIDED IN KIT. SEE FIGURE 12 FOR LOCATION OF HEAD SEAL.

2. INSTALL THE NEW GOVERNOR WEIGHT RETAINER ASSEMBLY PROVIDED IN THE KIT.

3. INSTALL GOVERNOR WEIGHT RETAINER SNAP RING.

4. WITH HEAD AND ROTOR ASSEMBLY STANDING UPRIGHT ON WORK BENCH, INSTALL GOVERNOR WEIGHTS AND THRUST WASHER IN CAGE. MAKE SURE WASHER IS POSITION ED IN SLOTS OF EACH GOVERNOR WEIGHT. SEE FIGURE 15.

5. POSITION THRUST SLEEVE ONTOP OF THRUST WASHER.

6. APPLY A COAT OF GREASE FROM GREASE PACK IN KIT TO THE HYDRAULIC HEAD SEAL.

7. LOCATE THE TOP OF THE HEAD AND ROTOR BY FINDING THE TRANSFER PUMP TAP SCREW. SEE FIGURE 10. ROTATE THE CAM RING UNTIL THE SMALLEST HOLE IS AT THE BOTTOM. NOTE: THIS IS DONE TO PROPERLY INDEX THE CAM RING.

8. ROTATE THE DRIVE SHAFT UNTIL THE "T" MARK IS POSITIONED UPWARD. SEE FIGURE 16. OBSERVE THE DOT ON THE OPPOSITE END OF THE DRIVE SHAFT TANG, AND LOCATE THE DOT IN THE DRIVE SHAFT SLOT. HOLD THE CAM RING AND ROTATE THE RETAINER TO ALIGN THE DOTS. SEE FIGURE 17.

9. INSERT THE HEAD AND ROTOR ASSEMBLY INTO THE HOUSING. ROTATE THE DRIVE SHAFT BACK AND FORTH SLIGHTLY UNTIL IT IS ENGAGED. COMPLETE THE INSER- TION OF THE HEAD AND ROTOR INTO THE HOUSING USING A TWISTING MOTION UNTIL THE HEAD LOCKING SCREW HOLES LINE UP.

NOTICE: INSERTION OF THE HEAD TOO FAR INTO THE PUMP MAY CUT THE HEAD SEAL. IF THE HEAD GOES IN FURTHER THAN THE LOCATING SCREW HOLES, CHECK THE HOUSING TO SEE IF SEAL IS EXPOSED IN THE OPENING FOR THE VENT SCREW; IF IT IS, REMOVE AND REPLACE THE SEAL.

10. RETAIN THE HEAD AND ROTOR ASSEMBLY INTO THE HOUSING BY INSTALLING THE TWO HEAD LOCKING SCREWS (HAND TIGHT). REFER TO FIGURE 10.

11. TURN PUMP UPSIDE DOWN AND INSTALL HEAD LOCATING SCREW USING A NEW HEAD LOCATING SCREW SEAL. TIGHTEN LOCATING SCREW TO 17 FT.LBS. OR 24.4 N.M; THEN TIGHTEN THE TWO HEAD LOCKING SCREWS TO 17 FT.LBS. OR 24.4 N.M.

12. INSTALL CAM PIN USING NEEDLE NOSE PLIERS. REFER TO FIGURE 11.

NOTE: WITH A SMALL SCREWDRIVER, LINE UP THE HOLE IN THE POSITION AND CAM RING. MOVE THE SERVO PISTON OUT OF THE WAY.

13. INSTALL ADVANCE PIN HOLD PLUG. TIGHTEN TO 8 FT.LBS. OR 10.8 N.M.

NOTE: INSPECT FOR "O" RING SEAL DAMAGE AND REPLACE IF NECESSARY. THE SEAL IS NOT INCLUDED IN THE PARTS KIT; HOWEVER, IT IS AVAILABLE THROUGH ROOSA MASTER. REFER TO CREDIT SECTION FOR FURTHER DETAILS.

14. TURN PUMP RIGHT SIDE UP AND REMOVE THE TIMING LINE COVER AND GASKET. SEE FIGURE 18.

NOTE: A NEW GASKET IS NOT INCLUDED IN THE PARTS KIT; THEREFORE, USE CARE IN REMOVING THE COVER TO AVOID DAMAGING THE GASKET. 15. CHECK INTERNAL PUMP TIMING BY VIEWING THROUGH THE TIMING LINE OPENING. THE LINE ON THE CAM RING SHOULD BE VISIBLE. USING A FLASHLIGHT, ROTATE THE DRIVE SHAFT UNTIL THE HEAD OF THE SCREW (ALLEN HEAD) IS VISIBLE THROUGH THE HOLE IN THE CAM RING. THE "T" ON THE DRIVE SHAFT SHOULD BE POSITIONED AT APPROXIMATELY A "5 O'CLOCK POSITION" VIEWING FROM THE DRIVE END OF THE SHAFT, IF PROPERLY TIMED. IF BOTH CONDITIONS ARE NOT MET, THE CAM RING OR THE HEAD COULD BE INSTALLED IMPROPERLY. DIS- ASSEMBLE AND CORRECT. REFER TO FIGURE 18.

16. INSTALL TIMING LINE GASKET AND COVER.

17. INSTALL HOUSING VENT SCREW AND METERING VALVE. REFER TO FIGURE 8.

18. ROTATE THRUST SLEEVE SO THAT FLAT ON SLEEVE IS UP.

19. INSTALL GOVERNOR LINKAGE ASSEMBLY, MAKING SURE THE FEET ON THE PIVOT ARE FORWARD OF THE THRUST SLEEVE. CONNECT THE LINKAGE TO THE METERING VALVE.

20. ROTATE THE METERING VALVE BACK AND FORTH; THE LINKAGE SHOULD NOT RESTRICT THE MOVEMENT OF THE VALVE.

21. POSITION ADVANCE CAM BETWEEN ADVANCE LEVER ARM AND HOUSING, MAKING SURE THAT MYLAR WASHER IS IN POSITION BEHIND THE CAM. SEE FIGURE 19.

22. USING NEW THROTTLE SHAFT SEALS, LUBRICATE SEALS AND SHAFT AND INSTALL THROTTLE SHAFT INTO HOUSING AND ADVANCE CAM.

23. INSTALL ADVANCE CAM SCREW (HAND TIGHT).

24. INSTALL NEW THROTTLE SHAFT DRIVE PIN PROVIDED IN KIT.

25. INSTALL TOOL J-29601 ON THROTTLE SHAFT OVER DRIVE PIN TO PROPERLY ALIGN CAM. REFER TO FIGURE 6.

26. INSERT A .005" FEELER GAUGE BETWEEN THE WHITE WASHER ON THE THROTTLE SHAFT AND THE PUMP HOUSING. SQUEEZE THE CAM AND THROTTLE SHAFT TOGETHER AND TIGHTEN THE ADVANCE CAM SCREW. TIGHTEN TO 30 IN.LBS. OR 3.4 N.M. SECURE WITH LOCTITE 290 OR EQUIVALENT. REMOVE TOOL 1J-29601. REFER TO FIGURE 20.

27. PIVOT THE MIN MAX GOVERNOR ASSEMBLY INTO POSITION. REFER TO FIGURE 5.

28. INSTALL THE GUIDE STUD AND NEW GUIDE STUD WASHER IF NEEDED, MAKING CERTAIN THAT THE UPPER EXTENSION OF THE METERING VALVE SPRING RIDES ON TOP OF THE GUIDE STUD. TIGHTEN THE GUIDE STUD TO 7 FT.LBS. OR 9.5 N.M. DO NOT OVER TORQUE THE GUIDE STUD.

29. INSTALL A NEW PUMP COVER GASKET ON THE COVER. MAKE SURE THE SCREWS ARE NOT IN THE COVER AND POSITION THE COVER ABOUT 1/4 INCH FORWARD (TOWARD SHAFT END) AND ABOUT 1/8 INCH ABOVE THE PUMP.

30. MOVE THE COVER REARWARD AND DOWNWARD INTO POSITION, BEING CAREFUL NOT TO CUT THE GASKET AND REINSTALL THE COVER SCREWS. BE CAREFUL NOT TO DROP FLAT WASHER AND INTERNAL LOCK WASHER WITH EACH SCREW. FLAT WASHER MUST BE AGAINST PUMP COVER. TIGHTEN TO 33 IN. LBS. OR 3.5N.M. REMOVE PUMP FROM MOUNTING BRACKET.

31. PRESSURE TEST THE INJECTION PUMP FOR LEAKS AS FOLLOWS:

A. ASSURE DISCHARGE PORTS ARE CAPPED (STEP 3 OF DISASSEMBLY).

B. REMOVE THE FUEL RETURN ELBOW AND INSTALL A 1/8" PIPE PLUG IN FUEL RETURN CHECK VALVE CONNECTOR.

C. WITH SELECTED FITTINGS, CONNECT A LENGTH OF 1/4" COPPER TUBING (AT LEAST 12" IN LENGTH) TO THE PUMP FUEL INLET CONNECTION; CONNECT THE OTHER END OF THE COPPER TUBING TO A REGULATED CLEAN, DRY AIR SUPPLY.

D. COMPLETELY IMMERSE THE PUMPIN A BTH OF CLEAN DIESEL FUEL.

E. RAISE AIR PRESSURE TO A MAXIMUM OF 137.9 KPA (20 PSI) AND OBSERVE FOR LEAKS.

NOTE: IF EXCESSIVE LEAKAGE IS OBSERVED AT ANY OF THE DISCHARGE PORTS ROTATE THE DRIVE SHAFT SLIGHTLY UNTIL IT STOPS. SLIGHT LEAKAGE AT THE DISCHARGE PORTS IS NORMAL.

F. LOWER AIR PRESSURE TO 13.8 KPA (2 PSI) AND OBSERVE FOR LEAKS. RAISE AIR PRESSURE AGAIN TO 137.9 KPA (20 PSI) AND OBSERVE FOR LEAKS. IF NECESSARY, CORRECT LEAKS BEFORE INSTALLING PUMP ON VEHICLE.

REFER TO CREDIT SECTION FOR FURTHER DETAILS.

32. REINSTALL VACUUM REGULATOR VALVE ON PUMP, LINING UP VALVE TO SCRIBE MARK MADE IN STEP 4 OF DISASSEMBLY (TIGHTEN BOLTS TO 4 FT.LBS. OR 5.4 N.M.). REINSTALL PUMP IN VEHICLE FOLLOWING THE PROCEDURE IN SECTION 6C5 OF THE 1982 CADILLAC SERVICE INFORMATION MANUAL AND SERVICE- MAN BULLETIN 82-3. TIMING ALIGNMENT MARKS SHOULD BE ALIGNED IN SAME POSITION NOTED IN STEP 1 OF DISASSEMBLY PROCEDURE.

NOTE: IT SHOULD NOT BE NECESSARY TO ADJUST THE THROTTLE LINKAGE, RESET PUMP TIMING, OR ADJUST VACUUM REGULATOR VALVE AS DESCRIBED IN THE SERVICE INFORMATION MANUAL.

33. AFTER PUMP IS REINSTALLED IN THE VEHICLE, TURN THE IGNITION SWITCH TO THE RUN POSITION AND TOUCH THE PINK FUEL SOLENOID WIRE TO THE SOLENOID. A CLICKING NOISE SHOULD BE HEARD AS THE WIRE IS CONNECTED AND DISCONNECT- ED. IF THIS CLICKING IS NOT OBSERVED, THE LINKAGE MAY BE JAMMED IN A WIDE OPEN THROTTLE POSITION AND THE ENGINE MUST NOT BE STARTED. IF CLICK ING IS OBSERVED, CONNECT THE ELECTRICAL CONNECTOR(S), THEN PROCEED TO STEP 35.

34. IF CLICKING IS NOT OBSERVED, REMOVE THE COVER. GROUND THE SOLENOID LEAD (OPPOSITE THE HOT LEAD) AND CONNECT THE PINK WIRE. WITH THE IGNITION SWITCH IN THE RUN POSITION, THE SOLENOID IN THE COVER SHOULD MOVE THE LINKAGE. IF NOT, THE SOLENOID MUST BE REPLACED. MINIMUM VOLTAGE ACROSS SOLENOID TERMINALS MUST BE 12.0 VOLTS

35. START THE ENGINE AND CHECK FOR LEAKS. (USING A JUMPER TO ENERGIZE THE HOUSING PRESSURE COLD ADVANCE SOLENOID WILL REDUCE STARTING TIME.)

36. IDLE ROUGHNESS MAY BE OBSERVED DUE TO THE AIR IN THE PUMP; GIVE IT TIME TO PURGE BY ALLOWING THE ENGINE TO IDLE. IT MAY BE NECESSARY TO STOP THE ENGINE FOR SEVERAL MINUTES TO ALLOW AIR BUBBLES TO RISE TO THE TOP OF THE PUMP WHERE THEY WILL BE PURGED.

37. USING MAG TAC (J-26925), SET IDLE SPEEDS ACCORDING TO EMISSION LABEL.

38. INSTALL CAMPAIGN IDENTIFICATION LABEL DESCRIBED BELOW.

CAMPAIGN COMPLETION LABEL

UPON COMPLETION OF THIS CAMPAIGN, A WHITE CAMPAIGN LABEL (CAT. NO. S-1015) SHOULD BE AFFIXED ON A CLEAN, DRY SURFACE OF THE RADIATOR SUPPORT TIE BAR IN AN AREA CLEARLY VISIBLE WHEN THE VEHICLE'S HOOD IS RAISED. EACH LABEL PROVIDES SPACE TO PRINT IN INK OR TYPE CAMPAIGN 82-C-2 AND YOUR FIVE-DIGIT DEALER CODE. DEALERS ARE TO TAKE THE STEPS NECESSARY TO INSURE THAT THE NUMBERS ARE PROPERLY RECORDED ON THE LABEL.

CREDIT

CREDIT FOR THIS CAMPAIGN WILL BE ISSUED UPON RECEIPT OF A PROPERLY PREPARED WARRANTY CLAIM AS DETAILED BELOW.

A. VEHICLE REQUIRES INSPECTION ONLY (INJECTION PUMP CORRECTED PRIOR TO SHIPMENT TO DEALER).

PART PART FAILURE LABOR LABOR QTY. NO. CODE OPERATIONS TIME

- - 96 V2200 .2 HR.

B. VEHICLE REQUIRES CAMPAIGN CORRECTION ONLY - DEALER PERFORMS CAMPAIGN CORRECTION.

PART PART FAILURE LABOR LABOR QTY. NO. CODE OPERATIONS TIME

1 22518269 96 V1101 2.0 HR.

NOTE: (1) IF IT IS DETERMINED THAT A NEW ADVANCE PIN HOLE PLUG SEAL IS REQUIRED (REFER TO STEP 13 OF ASSEMBLY) INCLUDE THE PART COST AS A NET AMOUNT IN THE "MATERIAL SUBLET TOWING" FIELD OF THE CLAIM.

(2) IF PRESSURE TESTING REVEALS THAT LEAKS MUST BE CORRECTED (REFER TO STEP 31 OF ASSEMBLY), UP TO .3 HR. ADDITIONAL LABOR CAN BE CLAIMED BY LISTING AS "OTHER LABOR HOURS". INCLUDE THE PART COST OF ANY REQUIRED SEALS AS A NET AMOUNT IN THE "MATERIAL-SUBLET-TOWING" FIELD OF THE CLAIM. DEALERS MUST OBTAIN ZONE APPROVAL PRIOR TO SUB- MITTING FOR THIS ADDITIONAL .3 HR. LABOR AND/OR PART COST.

C. VEHICLE REQUIRES CAMPAIGN CORRECTION ONLY - DEALER SUBLETS CAMPAIGN CORRECTION TO ROOSA MASTER.

PART PART FAILURE LABOR LABOR MATERIAL QTY. NO. CODE OPERATION TIME SUBLET - TOWING 1 22518269 96 V1102 1.3 HRS. * XXX

* LIST THE COST OF THE CAMPAIGN CORRECTION LABOR CHARGED BY ROOSA MASTER AS INDICATED ON THEIR INVOICE AS ONE NET AMOUNT.

NOTE: ANY CHARGES FROM ROOSA MASTER FOR REPAIRS NOT RELATED TO OR COVERED BY THIS CAMPAIGN MUST BE HANDLED ACCORDING TO THE NORMAL WARRANTY PROCEDURES ON A SEPARATE CLAIM.

THE LABOR TIME LISTED ABOVE REPRESENTS THE TIME REQUIRED TO PERFORM THE CORRECTION. DEALERS SHOULD APPLY FOR 0.1 ADDITIONAL HOUR FOR CAMPAIGN ADMINISTRATIVE ALLOWANCE AS "OTHER LABOR HOURS" FOR A OR B ABOVE. DEALERS SHOULD APPLY FOR 0.3 ADDITIONAL HOUR FOR CAMPAIGN AND SUBLET ADMINISTRATIVE ALLOWANCE AS "OTHER LABOR HOURS" FOR C ABOVE.

REPLACED PARTS SHOULD BE RETAINED FOR SCRAPPING IN THE NORMAL MANNER.

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.