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Home >> Toyota >> 1988 >> 4Runner Base, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 2.4L 4-CYL & 2.4L 4-CYL Turbo - VIN [R] >> Overhaul >> Piston Pin Replacement >> Inspection

Piston Pin Replacement: Inspection

  1. Measure clearance between rod bushing and piston pin. Replace rod bushing if clearance is greater than .0006" (.015 mm).
  2. At 176°F (80°C), pin should push into piston with thumb pressure. If pin can be installed at lower temperature, replace pin and piston. Inspect connecting rod for misalignment. The maximum rod bend limit is .002" (.05 mm) per 3.94" (100 mm). The maximum rod twist limit is .0059" (.15 mm) per 3.94" (100 mm). If rod is bent or twisted, replace rod.
NOTE: Piston and pin are a matched set. Use new snap rings for reassembly.
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