Piston Ring: Specifications

If the piston rings exceed 0.085 mm (0.0033 inch), replace the piston.

Ring to Groove Clearance	Top Piston Ring (Standard Clearance)	0.035-0.065 mm (0.0014-0.0026 inch)
	Second Piston Ring (Standard Clearance)	0.030-0.065 mm (0.0012-0.0026 inch)
Ring Gap	Top and Second Ring	0.15-0.30 mm (0.006-0.012 in.)
	Top and Second Ring (Maximum)	0.5 mm (0.020 in.)
	Oil Rail	0.20-0.70 mm (0.008-0.028 in.)
	Oil Rail (Maximum)	0.9 mm (0.035 in.)