For 1990-2009 cars

# GM GOODWRENCH 350 DIESEL ENGINE P/N'S

A GM-GOODWRENCH 350 DIESEL ENGINE IS NOW AVAILABLE THROUGH WDDGM FOR CERTAIN CURRENT AND PAST MODEL VEHICLES EQUIPPED WITH A 5.7 LITER V-8 DIESEL ENGINE. ALL GM-GOODWRENCH 350 DIESEL ENGINES ARE MANUFACTURED WITH NEW COMPONENTS. THEY ALL CONTAIN ROLLER LIFTER VALVE TRAINS AND INCORPORATE ALL PARTS, EXCEPT AS NOTED BELOW: APPLICATION - GM-GOODWRENCH 350 DIESEL ENGINE ENGINE PART NUMBER 22520957 (I.D. CODE MG1) ENGINE PART NUMBER 22523103 (I.D. CODE MG2) ENGINE PART NUMBER 22522089 (I.D. CODE MG3) PASSENGER CAR: OLDSMOBILE, BUICK, CADILLAC, CHEVROLET, AND PONTIAC 1978-79 ENGINE PART NUMBER 22520957 1980 ALL 1981 CALIFORNIA ENGINE PART NUMBER 22523103 1981 EXCEPT CALIFORNIA 1982-83 ALL ENGINE PART NUMBER 22522089 LIGHT DUTY TRUCK: CHEVROLET AND GMC 1978-79-80 ENGINE PART NUMBER 22520957 1981 CALIFORNIA ENGINE PART NUMBER 22522089 NOTICE: 1981 MODEL CANADIAN AND EXPORT PASSENGER CARS AND 1981 MODEL LIGHT DUTY TRUCKS BUILT WITH PENCIL TYPE NOZZLES AND INTERNAL EGR CYLINDER HEADS CANNOT UTILIZE A GM-GOODWRENCH 350 DIESEL ENGINE. IT WILL BE NECESSARY TO UTILIZE A PARTIAL ENGINE OR FITTED BLOCK CURRENTLY AVAILABLE FROM WDDGM. DESCRIPTION 1.ENGINE 22520957 (CODE MG1) CONTAINS CYLINDER HEADS MACHINED FOR PENCIL TYPE NOZZLES. THERE ARE NO PROVISIONS FOR EGR. 2.ENGINE 22523103 (CODE MG2) CONTAINS CYLINDER HEADS MACHINED FOR POPPET TYPE NOZZLES. THESE CYLINDER HEADS ARE MANUFACTURED TO MATCH INTAKE MANIFOLDS WITH EXTERNAL EGR. 3.ENGINE 22522089 (CODE MG3) CONTAINS CYLINDER HEADS MACHINED FOR POPPET TYPE NOZZLES. THESE CYLINDER HEADS ARE MANUFACTURED TO MATCH INTAKE MANIFOLDS WITH INTERNAL EGR. WHAT'S INCLUDED CYLINDER BLOCK ASSEMBLY, CONNECTING ROD AND PISTON ASSEMBLIES, CRANKSHAFT, CRANKSHAFT BALANCER, CAMSHAFT, CYLINDER HEAD ASSEMBLIES INCLUDING VALVE TRAINS, CAMSHAFT AND CRANKSHAFT SPROCKETS WITH CHAIN, TIMING GEARS AND TIMING COVER, OIL PUMP AND SCREEN, OIL PAN AND INSTALLATION INSTRUCTION SHEET. WHAT'S NOT INCLUDED MOST OFTEN YOU CAN TRANSFER THESE FROM THE ENGINE THAT IS BEING REPLACED. THESE PARTS ARE: THE INTAKE MANIFOLD AND RELATED PLUMBING, EXHAUST MANIFOLDS, ALTERNATOR, POWER STEERING, VACUUM PUMP, INJECTION PUMP, INJECTION NOZZLES AND PIPES, FUEL PUMP, FILTER AND PIPES, WATER PUMP, BLOCK HEATER, FLYWHEEL, PULLEYS, BRACKETS AND BELTS. WHAT MUST BE ORDERED SEPARATELY GUIDE - OIL LEVEL INDICATOR GASKET KIT - INTAKE MANIFOLD GASKET - WATER PUMP BODY GASKET - OIL FILTER BASE GASKET - FUEL PUMP SEAL - INJECTION NOZZLE CARBON STOP. 8 REQUIRED (PENCIL TYPE NOZZLE ONLY) SEAL - INJECTION NOZZLE COMPRESSION. 8 REQUIRED (PENCIL TYPE NOZZLE ONLY) SPACER - NOZZLE SPRING CLAMP NO. 22505830 (PENCIL TYPE NOZZLE ONLY - SEE NOTE) CLAMP ASSEMBLY - FUEL INJECTION NOZZLE NO. 22505829 (PENCIL TYPE NOZZLE ONLY - SEE NOTE) SEAL - VACUUM PUMP "O" RING PUMP ASSEMBLY - VACUUM NO. 7839413 (REQUIRED ONLY ON 1978 MODELS UNLESS CAMSHAFT PACKAGE NO. 22502676 HAS PREVIOUSLY BEEN INSTALLED) GASKET - OIL PAN PACKAGE REQUIRED ON ALL TORONADO MODELS ONLY NOTE: SECOND DESIGN NOZZLE SPACERS AND CLAMPS WILL BE REQUIRED UNLESS A CYLINDER HEAD HAS PREVIOUSLY BEEN REPLACED. THE SECOND DESIGN CLAMP USES A 3/8" BOLT, THE FIRST DESIGN WAS 5/16". REMOVE ONE BOLT FROM EACH CYLINDER HEAD TO DETERMINE WHICH STYLE IS INSTALLED ON THE ENGINE. ORDER SEPARATELY AS REQUIRED. SERVICE PARTS THE GM-GOODWRENCH 350 DIESEL ENGINE USES CURRENT MODEL PARTS EXCEPT AS LISTED IN THE CHART BELOW. WHEN SERVICING A VEHICLE WITH A 5.7 LITER DIESEL ENGINE, IT WILL BE NECESSARY TO DETERMINE IF A GM -GOODWRENCH 350 DIESEL ENGINE HAS BEEN INSTALLED. EACH GM-GOODWRENCH 350 DIESEL ENGINE WILL HAVE A DISTINCTIVE LABEL ON EACH VALVE COVER FOR EASY IDENTIFICATION. IN ADDITION, YOU WILL BE SUPPLIED AN ADDITIONAL LABEL TO ATTACH TO THE FRONT OF THE AIR CLEANER. THESE VISUAL AIDS WILL ALLOW YOU TO READILY IDENTIFY THIS ENGINE AND ORDER THE PROPER PARTS FOR SERVICE. SERVICE REPAIR FOR SERVICE REPAIR, THE FOLLOWING PART NUMBERS ARE SPECIFIC: ENGINE NUMBER 22520957 22523103 22522089 CYLINDER HEADS 22523637 22523638 1983 MODEL (REFER TO PARTS CATALOG FOR PART NUMBER) PISTONS 1978 THROUGH 1981 MODELS (REFER TO PARTS CATALOG FOR PART NUMBER) PISTONS 1978 THROUGH 1981 MODELS (REFER TO PARTS CATALOG FOR PART NUMBER) PISTONS 1983 MODEL (REFER TO PARTS CATALOG FOR PART NUMBER) ALL OTHER PARTS CONTAINED IN THE GM-GOODWRENCH 350 DIESEL ENGINE ARE 1983 MODEL PARTS AND SHOULD BE ORDERED FROM THE CURRENT 1983 PARTS CATALOG. WARRANTY INFORMATION ANY WARRANTY CLAIMS SUBMITTED TO OLDSMOBILE FOR THE INSTALLATION OF A GM-GOODWRENCH 350 DIESEL ENGINE WILL REQUIRE ZONE AUTHORIZATION, AND ARE TO BE SUBMITTED USING THE FOLLOWING LABOR OPERATION NUMBER. LIST THE APPLICABLE ENGINE PART NUMBER IN THE "FAILED PART NUMBER" COLUMN. LABOR TIME ALLOWANCE: 1978-79 MODELS J7-9150-01 TORONADO 8.4 ALL OTHERS 7.7 1980-81-82-83 MODELS J1840 TORONADO 8.4 ALL OTHERS 7.7 ADD: WITH CRUISE CONTROL .1 HR. WITH A/C .5 HR. REPLACE GOVERNOR WEIGHT RETAINER RING (IF REQUIRED) .7 HR. INCLUDES: R&R HOOD, BELTS, FAN AND FLYWHEEL COVER. D&C EXHAUST PIPES, FUEL AND VACUUM LINES, LINKAGE, STARTER AND HOSES. DRAIN AND REFILL ENGINE OIL (IF REQUIRED) AND COOLANT. TRANSFER OIL PAN AND PUMP ON TORONADO. CHECK INJECTION PUMP GOVERNOR WEIGHT RETAINER RING. MAKE ALL NECESSARY ADJUSTMENTS INCLUDING TIMING. ALSO INCLUDES TIME TO TRANSFER ALL REQUIRED PARTS.

---SECOND BULLETIN--- DEALER MANAGEMENT BULLETIN 83-I-20 (GM GOODWRENCH 350 DIESEL ENGINE) LISTS INCORRECT VACUUM PUMP ASSEMBLY INFORMATION UNDER "WHAT MUST BE ORDERED SEPARATELY". THIS INFORMATION SHOULD READ: PUMP ASSEMBLY-VACUUM NO. 7839413 (REQUIRED ONLY ON 1978 MODELS UNLESS CAMSHAFT PACKAGE NO. 22502664 OR 22510754 HAVE PREVIOUSLY BEEN INSTALLED). IF EITHER ONE OF THESE PACKAGES HAVE BEEN INSTALLED AN ALUMINUM I.D. TAG SHOULD BE PRESENT UNDER THE BOLT HEAD CLAMPING THE PUMP DRIVE ASSEMBLY.

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.