A/T Clutch Inspection

  1. Inspect the 4th and 5th clutch pistons and clutch piston check valves (A).
  1. If the clutch piston check valve is loose or damaged, replace the clutch piston.
  1. Check the spring retainer for wear and damage.

  1. Check the oil seal (A) on the spring retainer of the 1st, 2nd, and 3rd clutches for wear, damage, and peeling.
  1. If the oil seal is worn, damaged, or peeling, replace the spring retainer.
  1. Inspect the clutch discs, clutch-plates, and clutch end plate for wear, damage, and discoloration.
    Standard Thickness
    Clutch Discs
    K20Z2 engine model:
    1.94 mm (0.076 in.)
    K24A3 engine model:
    1st and 3rd clutches:
    1.96 mm (0.077 in.)
    2nd, 4th, and 5th clutches:
    1.94 mm (0.076 in.)

    Clutch Plates
    K20Z2 engine model:
    1st clutch (waved-plates):
    2.0 mm (0.079 in.)
    2nd clutch
    Waved-plates:
    2.0 mm (0.079 in.)
    Flat-plate:
    2.0 mm (0.079 in.)
    3rd clutch
    Waved-plates:
    2.0 mm (0.079 in.)
    Flat-plate:
    2.0 mm (0.079 in.)
    4th clutch (waved-plates):
    2.3 mm (0.091 in.)
    5th clutch (waved-plates):
    2.3 mm (0.091 in.)
    K24A3 engine model:
    1st clutch (flat-plates):
    1.6 mm (0.063 in.)
    2nd clutch:
    Waved-plates:
    2.0 mm (0.079 in.)
    Flat-plate:
    2.0 mm (0.079 in.)
    3rd clutch (flat-plates):
    1.6 mm (0.063 in.)
    4th clutch (waved-plates):
    2.0 mm (0.079 in.)
    5th clutch (waved-plates):
    2.0 mm (0.079 in.)


  1. If the clutch discs are worn or damaged, replace them as a set. If the clutch discs are replaced, inspect the clutch end-plate-to-top-disc clearance.
  1. If any plate is worn, damaged, or discolored, replace the damaged plate with the new plate, and inspect the other waved-plates for a phase difference. If the clutch plate is replaced, inspect the clutch end-plate-to-top-disc clearance.
  1. If the clutch end plate is worn, damaged, or discolored, inspect the clutch end-plate-to-top-disc clearance, then replace the clutch end plate.