Piston, Engine

Piston
Diameter (Standard) 86.68 - 86.71mm (3.413 - 3.414in.)
Clearance (Piston-to-cylinder) 0.01 - 0.03mm (0.0004 - 0.0012in.)
Ring groove width
No.1 1.230 - 1.250mm (0.0484 - 0.0492in.)
No.2 1.220 - 1.250mm (0.0480 - 0.0488in.)
Oil 2.515 - 2.535mm (0.0990 - 0.0998in.)
Piston for service 0.25mm (0.010in.), 0.50mm (0.020in.)