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Piston

Piston-to-Cylinder Clearance Standard 0.039-0.052 mm (0.0015-0.0020 in.)
Maximum 0.15 mm (0.006 in.)
Piston Pin Hole Diameter 18.988-19.000 mm (0.7476-0.7480 inch)
Piston Outer Diameter
Measure the outer diameter of each piston at a right angle (90 degrees) to the piston pin and 16.5 mm (0.650 inch) below the oil ring groove.
Standard Piston 82.954-82.974 mm (3.2659-3.2667 inches)
Oversize Piston [0.25 mm (0.010 in)] 83.204-83.224 mm (3.2757-3.2765 inches)
Oversize Piston [0.50 mm (0.020 in)] 83.454-83.474 mm (3.2856-3.2864 inches)