Piston Ring, Engine

PISTON RINGS
Compression
Groove Clearance, Top 0.030 - 0.070 mm (0.0012 - 0.0027 in)
Groove Clearance, Second 0.040 - 0.095 mm (0.0016 - 0.0037 in)
Gap, Top 0.25 - 0.50 mm (0.0098 - 0.0197 in)
Gap, Second 0.25 - 0.50 mm (0.0098 - 0.0197 in)

Oil
Groove Clearance 0.199 mm (0.0008 in) Maximum
Gap 0.27 - 1.25 mm (0.01 - 0.05 in)