Piston

DIMENSIONS
Diameter:
STD
Mark 1 80.905 - 80.915 mm (3.1852 - 3.1856 inch)
Mark 2 80.915 - 80.925 mm (3.1856 - 3.1860 inch)
Mark 3 80.925 - 80.935 mm (3.1860 - 3.1864 inch)
O/S 0.50 81.405 - 81.435 mm (3.2049 - 3.2061 inch)

Oil Clearance:
STD 0.085 - 0.105 mm (0.0033 - 0.0041 inch)
Maximum 0.20 mm (0.0079 inch)

Ring Groove Clearance:
No. 1 0.045 - 0.085 mm (0.0018 - 0.0033 inch)
No. 2 0.030 - 0.070 mm (0.0012 - 0.0028 inch)