Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring-To-Ring Groove Clearance
Top 0.030 - 0.065
Second 0.030 - 0.070
Oil 0.07 - 0.16
Maximum Top, Second 0.15
Maximum Oil 0.20
End Gap
Top 0.15 - 0.30
Second 0.30 - 0.45
Oil
Rail
0.20 - 0.70
Maximum 1.0