Piston Pin Inspection
- Measure diameter of piston pin. Zero dial indicator to piston pin diameter. Insert gauge into piston boss to measure piston pin-to-piston clearance.
- Piston pin clearance must be .0004-.0009" (.010-.022 mm). If piston pin clearance is greater than .0009" (.022 mm), install an oversize piston pin and recheck clearance.
- Determine difference between piston pin diameter and connecting rod small end diameter. Interference fit between piston and connecting rod must be .0005-.0013" (.013-.032 mm).