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Piston Ring, Engine

Piston Rings (End Gap Measured in Cylinder Bore)
Piston Compression Ring Gap (Production-Top Groove) 0.010-0.020 Inch (in)
Piston Compression Ring Gap (Production-2nd Groove) 0.018-0.026 Inch (in)
Piston Compression Ring Gap (Service-Top Groove) 0.010-0.025 Inch (in)
Piston Compression Ring Gap (Service-2nd Groove) 0.018-0.035 Inch (in)
Piston Compression Ring Groove Clearance (Production-Top Groove) 0.0012-0.0027 Inch (in)
Piston Compression Ring Groove Clearance (Production-2nd Groove) 0.0015-0.003 Inch (in)
Piston Compression Ring Groove Clearance (Service Limit-Top Groove) 0.0012-0.0035 Inch (in)
Piston Compression Ring Groove Clearance (Service Limit-2nd Groove) 0.0015-0.0040 Inch (in)
Piston Oil Ring Gap (Production) 0.010-0.030 Inch (in)
Piston Oil Ring Gap (Service) 0.010-0.035 Inch (in)
Piston Oil Ring Groove Clearance (Production) 0.002-0.006 Inch (in)
Piston Oil Ring Groove Clearance (Service) 0.002-0.009 Inch (in)