Magnetic Clutch Adjustment

2004 Oldsmobile Bravada RWDSECTION Magnetic Clutch Adjustment
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure the clearance around the entire circumference between the pressure plate and A/C compressor pulley using a thickness gauge.
  2. Verify that the clearance.
    • If not within the specification, remove the pressure plate and adjust the clearance by changing the shim (0.2 mm {0.008 in}, 0.5 mm {0.02 in}  ) or the number of shims.
      Fig 1: Measuring Clearance Between Pressure Plate & A/C Compressor Pulley Using Thickness Gauge
      G00975600Courtesy of MAZDA MOTORS CORP.
    1. Clearance 0.3-0.5 mm {0.012-0.019 in} 
    Fig 2: Adjusting Clearance By Replacing Shim
    G00975601Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

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.