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(5) Remove the belt pulley/vibration damper (Fig. 47). NOTE: If grooves can be felt in the belt pulley/vibra- (6) Inspect hub at belt pulley/vibration damper for wear grooves. (7) Replace front crankshaft seal. INSTALLATION NOTE: Align parallel key, fix in place with grease. NOTE: Front crankshaft seal must be replaced (1) Position the belt pulley/vibration damper. (2) Install crankshaft center bolt and washer. Tighten bolt in two stages. M8.8 bolt to 200N·m (148 (3) Remove the retaining lock for the crankshaft/ ring gear (Fig. 47). NOTE: Inspect accessory drive belt for wear. Replace as necessary. (4) Install accessory drive belt (Refer to 7 - COOL- ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL- (5) Install the additional A/C compressor drive belt (if equipped). (6) Install the coolant module (if equipped with the additional A/C compressor). (7) Reconnect negative battery cable. WARNING: USE EXTREME CAUTION WHEN THE (8) Start vehicle and inspect for leaks. VACUUM PUMP DESCRIPTION The vacuum pump is operated by a slotted exten- sion attached to the vacuum pump shaft. The vac- The vacuum pump is a constant displacement, vane-type pump. Vacuum is generated by vanes The vacuum pump rotating components are inter- nally lubricated. The vacuum pump is not serviceable and must be replaced as a unit. Do not disassemble or attempt to OPERATION Vacuum pump output is transmitted to the Heater, Electronic, Vacuum, Air Conditioner (HEVAC) and Pump output ranges from a minimum of 8.5 to 25 inches vacuum. The pump rotor and vanes are rotated by the pump drive gear. The drive gear is operated by the exhaust Fig. 47 VIBRATION DAMPER/CRANKSHAFT PULLEY 1 - SPECIAL TOOL #8932 9 - 54 ENGINE VA |