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HOMESERVICE MANUALSGMC1984SUBURBAN C2500, 6.2 J, 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)GENERAL SERVICINGA/C COMPRESSOR OVERHAUL - DAV5PULLEY BEARING REPLACEMENT
1984 GMC Suburban C2500, 6.2 J, 400/M40

Pulley Bearing Replacement

1984 GMC Suburban C2500, 6.2 J, 400/M40SECTION Pulley Bearing Replacement
  1. Remove Snap Ring - Perform steps 1-4 of SEAL REPLACEMENT. Using external snap ring pliers, remove retaining ring securing pulley and bearing assembly.
    Fig 1: Installing Puller Pilot - Tool No. 14, Puller Pilot
    G15467
  2. Install Puller Pilot - Install puller pilot to front head.
    Fig 2: Removing Pulley & Bearing - Tool No. 12, Pulley Puller
    G15468
  3. Remove Pulley & Bearing - Install pulley rotor and bearing puller down into inner circle of slots in pulley. Turn puller clockwise to engage puller tangs in segments of pulley between slots. Hold puller in place and tighten puller screw against puller pilot. Remove pulley and bearing assembly from compressor head.
    Fig 3: Removing Bearing - Tool No. 21, Bearing Remover; No. 18, Driver Handle
    G15469
  4. Remove Bearing - Remove forcing screw from puller. Without removing puller from pulley, turn assembly over, and rest pulley on puller. Place puller on wooden support blocks. Drive out bearing with bearing remover and a driver handle.
    NOTE: It is not necessary to remove staking to remove bearing, but staking should be filed away before installing new bearing.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.