Piston Ring, Engine

Piston and Piston ring
Piston ring groove clearance 0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Piston ring end gap
STD No. 1 0.25 - 0.35 mm (0.0098 - 0.0138 inch)
No. 2 0.35 - 0.50 mm (0.0138 - 0.0197 inch)
Oil 0. 10 - 0.35 mm (0.0039 - 0.0138 inch)
Maximum No. 1 0.91 mm (0.0358 inch)
No. 2 1.06 mm (0.0417 inch)
Oil 0.82 mm (0.0323 inch)