Dimension & Clearance Specifications - Piston Rings

Piston Ring Compression
Top Groove Side Clearance 0.05-0.027 mm (0.0019-0.0011 inch)
Second Groove Side Clearance 0.05-0.027 mm (0.0019-0.0011 inch)
Top Ring Gap 0.25-0.50 mm (0.010-0.020 inch)
Second Ring Gap 0.25-0.50 mm (0.010-0.020 inch)

Piston Ring Oil
Groove Clearance 0.05-0.021 mm (0.0019-0.0082 inch)
Gap 0.25-1.27 mm (0.010-0.050 inch)