Operation CHARM: Car repair manuals for everyone.

Piston Ring Gap & Groove Clearance

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