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Home › Acura › 1993 › Integra GS-R › Repair and Diagnosis › Engine Mechanical › Mechanical › 1.7L 4-CYL › Overhaul › Piston Pin Inspection

Piston Pin Inspection

  1. Measure diameter of piston pin. Zero dial indicator to piston pin diameter. Insert gauge into piston boss to measure piston pin-to-piston clearance.
  2. Piston pin clearance must be 0.0004-0.0009" (0.010-0.022 mm). If piston pin clearance is greater than 0.0009" (0.022 mm), install an oversize piston pin and recheck clearance.
  3. Determine difference between piston pin diameter and connecting rod small end diameter. Interference fit between piston and connecting rod must be 0.0005-0.0013" (0.013-0.032 mm).
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