Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Compression Ring Gap
End Gap Measured in Cylinder Bore
Production-Top Groove 0.098 - 0.015 Inch (in)
Production-2nd Groove 0.018 - 0.025 Inch (in)
Service-Top Groove 0.009 - 0.019 Inch (in)
Service-2nd Groove 0.018 - 0.031 Inch (in)
Piston Compression Ring Groove Clearance Production-Top Groove 0.0012 - 0.0027 Inch (in)
Production-2nd Groove 0.0015 - 0.003 Inch (in)
Service Limit-Top Groove 0.0012 - 0.0035 Inch (in)
Service Limit-2nd Groove 0.0015 - 0.0040 Inch (in)
Piston Oil Ring Gap (Production) 0.009 - 0.029 Inch (in)
Gap (Service) 0.009 - 0.035 Inch (in)
Groove Clearance (Production) 0.0018 - 0.0037 Inch (in)
Groove Clearance (Service) 0.0018 - 0.0039 Inch (in)