Piston, Engine

Piston
Diameter
Grade 1 (at right angle to pin bore) 90.175 - 90.165 mm (3.5502 - 3.5498 inch)
Grade 2 (at right angle to pin bore) 90.185 - 90.175 mm (3.5506 - 3.5502 inch)
Grade 3 (at right angle to pin bore) 90.195 - 90.185 mm (3.5510 - 3.5506 inch)
Piston-to-cylinder bore clearance (at grade size) 0.025 - 0.045 mm (0.0010 - 0.0018 inch)
Ring end gap
Top 0.15 - 0.30 mm (0.006 - 0.012 inch)
Intermediate 0.25 - 0.50 mm (0.0098 - 0.0197 inch)
Oil control 0.15 - 0.65 mm (0.0059 - 0.0256 inch)
Ring groove width
Top 1.52 - 1.55 mm (0.0598 - 0.0610 inch)
Intermediate 1.52 - 1.54 mm (0.0598 - 0.0606 inch)
Oil control 3.030 - 3.050 mm (0.1193 - 0.1201 inch)
Ring width
Top and intermediate 1.50 - 1.47 mm (0.0590 - 0.0578 inch)
Ring-to-groove clearance
Top 0.020 - 0.080 mm (0.0008 - 0.0031 inch)
Intermediate 0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Piston pin
Bore diameter 22.008 - 22.014 mm (0.8665 - 0.8667 inch)
Pin diameter 22.0010 - 22.0030 mm (0.8662 - 0.8663 inch)
Pin length 61.8 mm (2.433 inch)
Pin-to-piston fit 0.005 - 0.0130 mm (0.0002 - 0.0005 inch)