Piston Ring, Engine

Piston Ring Groove Clearance
Number 1
Standard Value 0.03 - 0.07 mm (0.001 - 0.003 in)
Limit 0.1 mm (0.004 in)
Number 2
Standard Value 0.03 - 0.07 mm (0.001 - 0.003 in)
Limit 0.1 mm (0.004 in)

Piston Ring End Gap
Number 1
Standard Value 0.15 - 0.25 mm (0.006 - 0.011 in)
Limit 0.8 mm (0.03 in)
Number 2
Standard Value 0.25 - 0.40 mm (0.010 - 0.016 in)
Limit 0.8 mm (0.03 in)
Oil Ring
Standard Value 0.10 - 0.35 mm (0.004 - 0.014 in)
Limit 1.0 mm (0.04 in)