Fitting Pistons
- Measure cylinder bore diameter. Measure piston diameter 90° from piston pin and 2.36" (60 mm) from top of piston.
- Subtract piston diameter from cylinder bore diameter to obtain clearance. If clearance is excessive, piston should be replaced.
- Oversize pistons are available in .020" (.50 mm) oversize. Measure new piston and hone cylinder to correct clearance.