Piston Ring: Specifications

Piston Ring End Gap
First Compression Ring - Measured in Cylinder Bore - Production 0.17-0.38 mm 0.0067-0.0150 in
First Compression Ring - Measured in Cylinder Bore - Service 0.17-0.44 mm 0.0067-0.0173 in
Second Compression Ring - Measured in Cylinder Bore - Production 0.32-0.63 mm 0.0126-0.0248 in
Second Compression Ring - Measured in Cylinder Bore - Service 0.32-0.69 mm 0.0126-0.0272 in
Oil Control Ring - Measured in Cylinder Bore - Production 0.22-0.79 mm 0.0086-0.0311 in
Oil Control Ring - Measured in Cylinder Bore - Service 0.22-0.85 mm 0.0086-0.0335 in
Piston Ring to Groove Clearance
First Compression Ring - Production 0.030-0.083 mm 0.0012-0.0033 in
First Compression Ring - Service 0.030-0.083 mm 0.0012-0.0033 in
Second Compression Ring - Production 0.040-0.083 mm 0.0016-0.0033 in
Second Compression Ring - Service 0.040-0.083 mm 0.0016-0.0033 in
Oil Control Ring - Production 0.013-0.201 mm 0.0005-0.0079 in
Oil Control Ring - Service 0.013-0.201 mm 0.0005-0.0079 in