Piston Ring, Engine

Piston
Piston Bore Clearance - Production 0.018-0.061 mm (0.0007-0.0024 inch)
Piston Bore Clearance - Service 0.018-0.068 mm (0.0007-0.0026 inch)
Piston Rings- End Gap Measured inch
Cylinder Bore Piston Compression Ring Gap - Production - Top Groove 0.25-0.51 mm (0.010-0.020 inch)
Piston Compression Ring Gap - Production - 2nd Groove 0.46-0.66 mm (0.018-0.026 inch)
Piston Compression Ring Gap - Service - Top Groove 0.25-0.65 mm (0.010-0.025 inch)
Piston Compression Ring Gap - Service - 2nd Groove 0.46-0.90 mm (0.018-0.035 inch)
Piston Compression Ring Groove Clearance - Production - Top 0.030-0.070 mm (0.0012-0.0027 inch)
Piston Compression Ring Groove Clearance - Production - 0.030-0.074 mm (0.0012-0.003 inch)
Piston Compression Ring Groove Clearance - Service Limit - Top 0.030-0.090 mm (0.0012-0.0035 inch)
Piston Compression Ring Groove Clearance - Service Limit - 2nd Groove 0.030-0.090 mm (0.0012-0.0040 inch)
Piston Oil Ring Gap - Production 0.25-0.76 mm (0.010-0.030 inch)
Piston Oil Ring Gap - Service 0.25-0.89 mm (0.010-0.035 inch)
Piston Oil Ring Groove Clearance - Production 0.051-0.203 mm (0.002-0.008 inch)
Piston Oil Ring Groove Clearance - Service 0.051-0.22 mm (0.002-0.009 inch)