Piston Ring, Engine

Piston Rings
Ring, End Gap - Top Compression 0.15-0.3 mm (0.006-0.012 in)
Ring, End Gap - Second Compression 0.3-0.5 mm (0.012-0.019 in)
Groove Clearance - Top Impression 0.05-0.08 mm (0.0019-0.0031 in)
Groove Clearance - Second Compression 0.05-0.082 mm (0.002-0.003 in)