Piston Ring, Engine

Piston Ring End Gap - First Compression Ring
0.2-0.4 mm
0.0079-0.0157 in

Piston Ring End Gap - Second Compression Ring
0.36-0.51 mm
0.0142-0.0201 in

Piston Ring End Gap - Oil Control Ring
0.250-0.760 mm
0.0098-0.0299 in

Piston Ring to Groove Clearance - First Compression Ring
0.043-0.093 mm
0.0017-0.0037 in

Piston Ring to Groove Clearance - Second Compression Ring
0.053-0.093 mm
0.0021-0.0037 in

Piston Ring to Groove Clearance - Oil Control Ring
0.059-0.215 mm
0.0023-0.0085 in15 mm
0.0023-0.0085 in