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Direct Clutch Inspection

    Fig 1: Identifying Direct Clutch Inspection Points
    GM1246026Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Safety Glasses Caution .
  1. Check to see if the sliding surface of the disc, plate, and flange are worn or burnt. If necessary, replace them.
    • If the lining of the disc is peeling off or discolored, or even if a part of the printed number is defaced, replace all discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
    2. Fig 2: Measuring Free Length Of Direct Clutch Return Spring
    GM1246027Courtesy of GENERAL MOTORS CORP.
  2. Using vernier calipers, measure the free length of the direct clutch return spring together with the spring sheet.

    Specifications:  Standard free length is 36.04 mm (1.4189 in).

    3. Fig 3: Applying Low-Pressure Compressed Air To Direct Clutch Piston
    GM1246029Courtesy of GENERAL MOTORS CORP.
  3. Check that the check ball is free by shaking the direct clutch piston.
  4. Check that the valve does not leak by applying low-pressure compressed air.
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