Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring Ring Gap Clearance Compression Ring 0.0090 to 0.0240 Inch (in)
2nd Compression Ring 0.0190 to 0.0380 Inch (in)
Oil Control Steel Rails 0.010 to 0.060 Inch (in)
Side Clearance Compression Rings 0.0017 to 0.0033 Inch (in)
Oil Control Rings 0.0024 to 0.0083 Inch (in)