Piston, Engine

Piston
Piston outer diameter 86.7 - 86.70 mm (3.4122 - 3.4134 inch)
Piston to cylinder clearance 0.02 - 0.04 mm (0.0008 - 0.0016 inch)
Ring groove width
No. 1 ring groove 1.23 - 1.25 mm (0.0484 - 0.0492 inch)
No. 2 ring groove 1.22 - 1.24 mm (0.0480 - 0.0488 inch)
Oil ring groove 2.01 - 2.03 mm (0.0791 - 0.0799 inch)
Piston O.S. 0.25 mm (0.0098 inch), 0.50 mm (0.0197 inch)