Piston Ring: Specifications

PISTON RING END GAP

Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore
Production 0.17-0.38 mm (0.0067-0.0150 in)
Service 0.17-0.44 mm (0.0067-0.0173 in)

Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
Production 0.32-0.63 mm (0.0126-0.0248 in)
Service 0.32-0.69 mm (0.0126-0.0272 in)

Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore
Production 0.22-0.79 mm (0.0086-0.0311 in)
Service 0.22-0.85 mm (0.0086-0.0335 in)

PISTON RING TO GROOVE CLEARANCE

Piston Ring to Groove Clearance - First Compression Ring
Production 0.030-0.083 mm (0.0012-0.0033 in)
Service 0.030-0.083 mm (0.0012-0.0033 in)

Piston Ring to Groove Clearance - Second Compression Ring
Production 0.040-0.083 mm (0.0016-0.0033 in)
Service 0.040-0.083 mm (0.0016-0.0033 in)

Piston Ring to Groove Clearance - Oil Control Ring
Production 0.013-0.201 mm (0.0005-0.0079 in)
Service 0.013-0.201 mm (0.0005-0.0079 in)