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PLASTIGAGE METHOD—ENGINE OUT-OF-VEHICLE (1) With engine in the inverted position (crank- shaft up) and mounted on a repair stand, remove (2) Remove oil from journal and bearing shell. bearing and place it in parallel with the journal axis (4) Carefully install the main bearing cap and tighten the bolts to specified torque. CAUTION: Do not rotate crankshaft or the Plasti- (5) Carefully remove the bearing cap and measure the width of the Plastigage at the widest part using REMOVAL - CRANKSHAFT MAIN BEARINGS (1) Remove the oil pan. (Refer to 9 - ENGINE/LU- BRICATION/OIL PAN - REMOVAL) (2) Identify main bearing caps before removal. upper half of bearing by inserting Special Main Bear- ing Tool C-3059 (Fig. 74) into the oil hole of crank- (4) Slowly rotate crankshaft clockwise, forcing out upper half of bearing shell. INSTALLATION - CRANKSHAFT MAIN NOTE: One main bearing should be selectively fit- (1) For main bearing fitting procedure, (Refer to 9 - ENGINE/ENGINE BLOCK/CRANKSHAFT MAIN (2) Start bearing in place, and insert Main Bearing Tool C-3059 into oil hole of crankshaft (Fig. 74). (3) Slowly rotate crankshaft counterclockwise slid- ing the bearing into position. Remove Special Main (4) Inspect main cap bolts for stretching (Fig. 75). Replace bolts that are stretched. NOTE: The main cap bolts should be examined (5) Install each main cap and tighten bolts finger tight. (6) Tighten number 1, 3 and 4 main cap bolts to 41 N·m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn). Fig. 72 Plastigage Placed in Lower 1 - PLASTIGAGE Fig. 73 Clearance Measurement Fig. 74 Upper Main Bearing Removing/Installing With Special Tool C-3059 1 - SPECIAL TOOL C-3059 RS ENGINE 3.3/3.8L 9 - 129 CRANKSHAFT MAIN BEARINGS (Continued) |