Dimension & Clearance Specifications - Piston

Allowance for Honing 0.02 mm (0.0008 inches)
Piston Diameter Measurement Point 24.5 mm (0.965 inches) from top
Piston Diameter
Standard (Mark 1) 80.905-80.915 mm (3.1852-3.1856 inches)
Standard (Mark 2) 80.915-80.925 mm (3.1856-3.1860 inches)
Standard (Mark 3) 80.925-80.935 mm (3.1860-3.1864 inches)
0.50 Undersize 81.405-81.435 mm (3.2049-3.2061 inches)
Piston Oil Clearance
Standard 0.085-0.105 mm (0.0033-0.0041 inches)
Maximum 0.13 mm (0.0051 inches)