Fitting Pistons
- After checking block for distortion, cracks, scratches or other abnormalities, measure bores at 3 levels. If any distortion exceeds.001" (.02 mm) from standard bore size, block must be rebored and oversize pistons installed.NOTE: Replacement pistons are available in standard.25 mm.50 mm.75 mm and 1.0 mm oversizes. Oversize pistons are stamped on crown to indicate oversize.
- Check outside diameter of piston by measuring at a point.079" (2 mm) from bottom of skirt and at 90° to pin bore. Determine amount of cylinder reboring required to meet specified clearance.
NOTE:
Pin-to-rod fit at normal temperature requires 1,102-3,306 lbs. (500-1500 kg) to press pin through rod.