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Home >> Jeep >> 1990 >> Cherokee Laredo, 2D Utility, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 4.0L 6-CYL - VIN [L] & 4.2L 6-CYL - VIN [T] >> Removal & Installation >> Piston Pin >> Installation

Piston Pin: Installation

  1. Insert pin pilot through piston and connecting rod. Place assembly on support. Insert piston pin through the upper piston pin bore and into connecting rod pin bore. See Fig 1.
    Fig 1: Removing & Installing Piston Pin
    G71654Courtesy of CHRYSLER MOTORS.
  2. Position driver inside pin. Using arbor press, press pin through rod and piston bores until pilot indexes with mark on support. Remove piston and connecting rod. Pin should be centered in rod.
  3. Piston pin installation requires a 2000 lb. (906 kg) press fit. Replace connecting rod if noticeably less effort is encountered.
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