Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Piston Ring, Engine

Piston Ring
Piston
Ring groove width
Top
Standard or New 1.23 - 1.24 mm (0.048 - 0.049 inch)
Service Limit 1.26 mm (0.050 inch)
Second
Standard or New 1.22 - 1.23 mm (0.047 - 0.048 inch)
Service Limit 1.25 mm (0.049 inch)
Oil
Standard or New 2.005 - 2.020 mm (0.0789 - 0.0795 inch)
Service Limit 2.05 mm (0.081 inch)
Piston Ring
Ring-to-groove clearance
Top
Standard or New 0.045 - 0.070 mm (0.0018 - 0.0028 inch)
Service Limit 0.13 mm (0.005 inch)
Second
Standard or New 0.030 - 0.055 mm (0.0012 - 0.0022 inch)
Service Limit 0.13 mm (0.005 inch)
Ring end gap
Top
Standard or New 0.20 - 0.35 mm (0.008 - 0.014 inch)
Service Limit 0.60 mm (0.024 inch)
Second
Standard or New 0.40 - 0.55 mm (0.016 - 0.022 inch)
Service Limit 0.70 mm (0.028 inch)
Oil
Standard or New 0.20 - 0.50 mm (0.008 - 0.020 inch)
Service Limit 0.70 mm (0.028 inch)