Piston Ring, Engine

Pistons
Material Aluminum Alloy
Piston Diameter 85.983 ± 0.019 mm (3.3851 ± 0.0017 in.)
Clearance at Size Location -0.0096 to +0.0436 mm (-0.0003 to +0.0016 inch)
Piston Weight 316 - 326 grams (11.1466 - 11.4994 oz.)
Piston Ring Groove Diameter
No. 1 77.8 - 78 mm (3.063 - 3.070 inch)
No. 2 75.9 - 76.1 mm (2.988 - 2.996 inch)
No. 3 76.5 - 76.7 mm (3.011 - 3.019 inch)

Piston Pins
Type Full Floating
Pin Diameter 21.997 - 22.000 mm (0.8661 - 0.8662 inch)
Clearance in Piston 0.005-0.013 mm (0.0002 - 0.0005 inch)
Clearance in Rod 0.007 - 0.018 mm (0.0003 - 0.0008 inch)

Piston Rings
Ring Gap
Top Compression Ring 0.20 - 0.36 mm (0.008 - 0.014 inch)
2nd Compression Ring 0.37 - 0.63 mm (0.0146 - 0.0249 inch)
Oil Control (Steel Rails) 0.25 - 0.76 mm (0.010 - 0.030 inch)

Piston Ring Side Clearance
Top Compression Ring 0.035 - 0.083 mm (0.0013 - 0.0032 inch)
2nd Compression Ring 0.040 - 0.080 mm (0.0016 - 0.0031 inch)
Oil Ring (Steel Rails) 0.058 - 0.204 mm (0.0022 - 0.0080 inch)

Piston Ring Width
Compression Rings-Top and 2nd 1.47 - 1.49 mm (0.0579 - 0.0587 inch)
Oil Ring (Steel Rails) 0.445 - 0.470 mm (0.0176 - 0.0186 inch)