Piston Ring, Engine

Piston Rings
End gap
Top 0.15-0.30 mm (0.006-0.012 in)
Intermediate 0.25-0.50 mm (0.0098-0.0197 in)
Oil control 0.15-0.65 mm (0.0059-0.0256 in)
Ring groove width
Top 1.52-1.54 mm (0.0598-0.0606 in)
Intermediate 1.52-1.54 mm (0.0598-0.0606 in)
Oil control 3.030-3.056 mm (0.1193-0.1203 in)
Ring width
Top and intermediate 1.50-1.48 mm (0.0590-0.0582 in)
Ring-to-groove clearance
Top 0.020-0.060 mm (0.0008-0.0020 in)
Intermediate 0.020-0.060 mm (0.0008-0.0020 in)