REAR MAIN OIL SEAL REPLACEMENT INFORMATION

THE FOLLOWING PROCEDURE SHOULD BE FOLLOWED WHENEVER REPLACING A REAR MAIN SEAL ON ALL CHEVETTE MODELS. 1.DISCONNECT BATTERY CABLES. 2.REMOVE TRANSMISSION. REFER TO SECTION 7 OF THE CHEVETTE SHOP MANUAL FOR TRANSMISSION REMOVAL PROCEDURES. 3.REMOVE FLYWHEEL OR FLEX PLATE AS APPLICABLE. 4.REMOVE RACK AND PINION BRACKET BOLTS. 5.REMOVE STRUT (LEFT SIDE ONLY). 6.REMOVE RAG JOINT (FLEXIBLE COUPLING) AND PULL GEAR DOWN. 7.DRAIN ENGINE OIL. 8.REMOVE OIL PAN BOLTS AND ALLOW OIL PAN TO DROP DOWN. 9.WITH PAN PULLED DOWN FROM BLOCK, REMOVE OIL PUMP SUCTION PIPE AND SCREEN, AND ALLOW TO LAY IN THE OIL PAN. 10.RAISE ENGINE SLIGHTLY (ENGINE MOUNTS IN PLACE) AND REMOVE OIL PAN. 11.REMOVE REAR MAIN CAP, AND REMOVE OIL SEAL. INSTALLATION 1.CLEAN BEARING CAP AND CASE. 2.INSPECT CRANK SEAL SURFACE FOR EXCESSIVE WEAR OR KNICKS. 3.INSTALL NEW SEAL IN CASE, TAKE CARE TO SEAT SEAL AGAINST REAR MAIN BEARING BULKHEAD. INSTALL BEARING CAP. 4.TORQUE BEARING BOLTS TO 14-16 N.M (10-12LB. FT.). TAP END OF CRANKSHAFT, FIRST REARWARD THEN FORWARD. RETORQUE MAIN BEARING CAP TO 54-70 N.M (40-52 LB. FT.). 5.INSTALL 2 PART RTV SEALER (OR EQUIVALENT) IN VERTICAL GROOVES UNTIL EXCESS EXITS FROM SLOTS ADJACENT TO REAR SEAL. 6.CLEAR EXCESS SEALER. 7.RAISE ENGINE SLIGHTLY (ENGINE MOUNTS IN PLACE). 8.BEFORE INSTALLING OIL PAN IT IS IMPORTANT TO REMOVE OLD RTV THAT IS LOOSE OR IT WILL CAUSE INSTALLATION INTERFERENCE. THE NEW SEALANT MAY BE PLACED ON TOP OF THE REMAINING RTV. 9.LAY SUCTION PIPE AND SCREEN IN OIL PAN. 10.APPLY 3MM DIAMETER BEAD OF RTV, 1052366 OR EQUIVALENT, TO OIL PAN. 11.POSITION OIL PAN ON ENGINE CROSSMEMBER. 12.LOWER ENGINE. 13.INSTALL SUCTION PIPE AND SCREEN. 14.RAISE OIL PAN TO BLOCK AND ATTACH BOLTS. TORQUE TO 6 N.M (55 LB. IN.).

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.