Operation CHARM: Car repair manuals for everyone.

Piston Ring

Ring Gap Compression (Max) 1.0 Millimeter (mm)
Oil Ring Side Clearance (Max) 1.25 Millimeter (mm)
Oil Ring Compression (Top) 0.040-0.090 Millimeter (mm)
Compression (Top) 0.030-0.080 Millimeter (mm)
Oil Ring Snug Fit
Oil Ring Service Limit (Max) 0.015 Millimeter (mm)
Ring Gap Compression (Top) 0.23-0.49 Millimeter (mm)
Compression (Bottom) 0.23-0.49 Millimeter (mm)
Oil Ring (Steel Rail) 0.05-0.66 Millimeter (mm)