Mazda Trucks 1987-1993 Repair Guide

Crankshaft Pulley (Vibration Damper)



See Figures 1, 2 and 3

  1. Remove the fan shroud, as required.
  3. On those engines with a separate pulley, remove the retaining bolts and separate the pulley from the vibration damper.

Click image to see an enlarged view

Fig. Fig. 1: Loosen the crankshaft pulley center nut by installing a small bolt on the outside of the pulley, using a prybar for holding force and a socket and breaker bar

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Fig. Fig. 2: Remove the crankshaft pulley retaining bolt

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Fig. Fig. 3: Remove the crankshaft pulley, keep the small bolt in for installation purposes

  1. Remove the vibration damper/pulley retaining bolt from the crankshaft end.
  3. Using a puller, remove the damper/pulley from the crankshaft.
  5. Upon installation, align the key slot of the pulley hub to the crankshaft key. Complete the assembly in the reverse order of removal. Tighten the crankshaft pulley/damper retaining bolt(s) to the following specifications:

    4.0L engine: 30-37 ft. lbs. (30-50 Nm), plus an additional 80-90°
    3.0L engine: 116-123 ft. lbs. (158-167 Nm)
    2.6L engine (1987-88):80-94 ft. lbs. (109-128 Nm)
    2.6L engine (1989-93): 145 ft. lbs. (197 Nm)
    2.2L engine: 9-13 ft. lbs. (12-18 Nm)