Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring (Compression) Side Clearance (Top Ring) Keystone-Type Ring
Side Clearance (Second Ring) 0.0015-0.0052 Inch (in)
Gap (Top Ring) (1-6) 0.0100 - 0.0220 Inch (in)
Gap (Top Ring) (7-8) 0.0120 - 0.0240 Inch (in)
Gap (Second Ring) (1-6) 0.0280 - 0.0410 Inch (in)
Gap (Second Ring) (7-8) 0.0300 - 0.0430 Inch (in)
Piston Ring (Oil) Side Clearance 0.0016 - 0.0035 Inch (in)
Gap 0.0100 - 0.0200 Inch (in)