Piston Ring, Engine

PISTON RING GROOVE DIAMETER
No. 1 77.65 - 77.85 mm (3.0571 - 3.065 inch)
No. 2 75.72 - 75.92 mm (2.9811 - 2.989 inch)
No. 3 77.42 - 77.62 mm (3.0481 - 3.0559 inch)
PISTON RINGS
Ring Gap Top Compression Ring 0.20 - 0.36 mm (0.008 - 0.014 inch)
Ring Gap 2nd Compression Ring 0.37 - 0.63 mm (0.0146 - 0.0249 inch)
Ring Gap Oil Control (Steel Rails) 0.25 - 0.76 mm (0.010 - 0.030 inch)
RING SIDE CLEARANCE
Top and Second Compression Ring 0.040 - 0.080 mm (0.0016 - 0.0031 inch)
Oil Ring (Steel Rails) 0.061 - 0.207 mm (0.0025 - 0.0082 inch)
RING WIDTH
Top Compression Ring 1.47 - 1.49 mm (0.0579 - 0.0587 inch)
2nd Compression Ring 1.47 - 1.49 mm (0.0579 - 0.0587 inch)
Oil Ring (Steel Rails) 0.445 - 0.470 mm (0.0176 - 0.0186 inch)