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HOMESERVICE MANUALSPONTIAC1991FIREBIRD FORMULA, 5.0 F, STANDARD, M39REPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSALTERNATOR & REGULATOROVERHAULDRIVE-END BEARINGCS144
1991 Pontiac Firebird Formula, 5.0 F, Standard, M39

Drive-End Bearing: Cs144

1991 Pontiac Firebird Formula, 5.0 F, Standard, M39SECTION Cs144
  1. Scribe end frames to facilitate reassembly. Remove through bolts and separate end frames. Remove shaft nut while holding rotor with hex wrench inserted into shaft end. Push rotor from housing. Remove retainer plate and press bearing out. On some alternators, drive end bearing cannot be replaced.
  2. To install new bearing, press against outer race until bearing seats. Bearing is sealed; no added lubricant is required. Assemble retainer and press rotor into end frame. Tighten shaft nut to 40-80 ft. lbs. (54-108 N.m).
    NOTE: Manufacturer recommends installing new bearing at slip ring end whenever alternator is reassembled.
  3. To reassemble alternator, reverse disassembly procedure. Retain brushes with brush retaining pin during reassembly. See Figure. Remove retaining pin after tightening through bolts.
RENDER: 1.0x

NO RELATED

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