Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

New Tolerance Limit
End Clearance of Piston Rings Groove 1 0.20 - 0.40 Millimeter (mm)1.5 Millimeter (mm)
Groove 2 0.15 - 0.35 Millimeter (mm)1.0 Millimeter (mm)
Groove 3 0.20 - 0.45 Millimeter (mm)1.0 Millimeter (mm)
Side Clearance of Piston Rings Groove 1 0.110 - 0.142 Millimeter (mm)0.2 Millimeter (mm)
Groove 2 0.070 - 0.112 Millimeter (mm)0.15 Millimeter (mm)
Groove 3 0.030 - 0.062 Millimeter (mm)0.1 Millimeter (mm)