Piston, Engine

DIMENSIONS





Piston Diameter
Standard diameter 82.485 mm (3.2474 inch)
Maximum deviation from nominal diameter 0.04 mm (0.0016 inch)

NOTE: Measure approx. 10.00 mm (0.4000 inch) from lower edge of piston skirt at right angle (90°) to piston pin.

Ring To Groove Clearance
New:
1st Compression Ring 0.02-0.05 (0.0008-0.0020 inch)
2nd Compression Ring 0.02-0.05 (0.0008-0.0020 inch)
Oil Scraper Ring 0.02-0.05 (0.0008-0.0020 inch)

Wear Limit:
1st Compression Ring 0.15 (0.0059 inch)
2nd Compression Ring 0.15 (0.0059 inch)
Oil Scraper Ring 0.15 (0.0059 inch)

Oversize diameters
1st oversize 82.735 mm (3.2572 inch)
2nd oversize 82.985 mm (3.2671 inch)

NOTE: Only pistons and piston rings of the same type and pistons of the same weight class may be installed.