Piston, Engine

Piston
Diameter (Standard) 86.68 - 86.71 mm (3.413 - 3.414 inch)
Ring groove width
No.1 1.230 - 1.250 mm (0.0484 - 0.0492 inch)
No.2 1.220 - 1.250 mm (0.0480 - 0.0488 inch)
Oil 2.515 - 2.535 mm (0.0990 - 0.0998 inch)
Piston for service 0.25 mm (0.010 inch), 0.50 mm (0.020 inch)