Piston Ring, Engine

Piston Ring End Gap
First Compression Ring - Measured in Cylinder Bore - Production 0.20 mm 0.41 mm 0.008 in 0.016 in
First Compression Ring - Measured in Cylinder Bore - Service 0.20 mm 0.41 mm 0.008 in 0.016 in
Second Compression Ring - Measured in Cylinder Bore - Production 0.37 mm 0.69 mm 0.015 in 0.027 in
Second Compression Ring - Measured in Cylinder Bore - Service 0.37 mm 0.69 mm 0.015 in 0.027 in
Oil Control Ring - Measured in Cylinder Bore - Production 0.22 mm 0.79 mm 0.009 in 0.031 in
Oil Control Ring - Measured in Cylinder Bore - Service 0.22 mm 0.79 mm 0.009 in 0.031 in
Piston Ring to Groove Clearance
First Compression Ring - Production 0.030 mm 0.10 mm 0.0012 in 0.0040 in
First Compression Ring - Service 0.030 mm 0.10 mm 0.0012 in 0.0040 in
Second Compression Ring - Production 0.035 mm 0.078 mm 0.0014 in 0.0031 in
Second Compression Ring - Service 0.035 mm 0.078 mm 0.0014 in 0.0031 in
Oil Control Ring - Production 0.013 mm 0.201 mm 0.0005 in 0.0079 in
Oil Control Ring - Service 0.013 mm 0.201 mm 0.0005 in 0.0079 in