Piston Ring, Engine

PISTON RING END GAP

Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore
Production 0.19-0.50 mm (0.0075-0.0197 in)
Service 0.19-0.56 mm (0.0075-0.0220 in)

Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
Production 0.37-0.69 mm (0.0146-0.0272 in)
Service 0.37-0.75 mm (0.0146-0.0295 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 0.025-0.083 mm (0.0010-0.0033 in)
Service 0.025-0.083 mm (0.0010-0.0033 in)

Piston Ring to Groove Clearance - Second Compression Ring
Production 0.020-0.060 mm (0.0008-0.0024 in)
Service 0.020-0.060 mm (0.0008-0.0024 in)

Piston Ring to Groove Clearance - Oil Control Ring
Production 0.023-0.207 mm (0.0009-0.0081 in)
Service 0.023-0.207 mm (0.0009-0.0081 in)