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Piston Ring Gap & Groove Clearance

Piston Ring Compression Top Groove Production Clearance 0.0012 - 0.0029 Inch (in)
Second Groove Production Clearance 0.0012 - 0.0029 Inch (in)
Service Limit Groove Clearance 0.0012 - 0.0039 Inch (in)
Top Ring Production Gap 0.010 - 0.018 Inch (in)
Top Ring Service Limit Gap 0.010 - 0.028 Inch (in)
Second Ring Production Gap 0.016 - 0.024 Inch (in)
Second Ring Service Limit Gap 0.016 - 0.034 Inch (in)
Piston Ring Oil Control Production Groove Clearance 0.0050 - 0.0065 Inch (in)
Service Limit Groove Clearance 0.0050 - 0.0075 Inch (in)
Production Gap 0.010 - 0.030 Inch (in)
Service Limit Gap 0.010 - 0.040 Inch (in)