Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Production 0.23-0.44 mm 0.009-0.017 in
Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore - Service 0.23-0.5 mm 0.009-0.0196 in
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Production 0.44-0.7 mm 0.017-0.027 in
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore - Service 0.44-0.76 mm 0.0173-0.03 in
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production 0.18-0.75 mm 0.007-0.029 in
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service 0.18-0.81 mm 0.007-0.032 in
Piston Ring to Groove Clearance - First Compression Ring - Production 0.04-0.085 mm 0.00157-0.00335 in
Piston Ring to Groove Clearance - First Compression Ring - Service 0.04-0.085 mm 0.00157-0.00335 in
Piston Ring to Groove Clearance - Second Compression Ring - Production 0.04-0.078 mm 0.00157-0.0031 in
Piston Ring to Groove Clearance - Second Compression Ring - Service 0.04-0.078 mm 0.00157-0.0031 in
Piston Ring to Groove Clearance - Oil Control Ring - Production 0.012-0.2 mm 0.0005-0.0078 in
Piston Ring to Groove Clearance - Oil Control Ring - Service 0.012-0.2 mm 0.0005-0.0078 in