Piston, Engine

Piston
Piston diameter - coded red 1 90.177-90.197 mm (3.550-3.551 in)
Piston diameter - coded blue 2 90.190-90.210 mm (3.5507-3.5515 in)
Piston diameter - coded yellow 3 90.203-90.223 mm (3.513-3.5521 in)
Piston-to-cylinder bore clearance 0.012-0.0026 mm (0.0005-0.001 in)
Piston ring end gap - compression (top and bottom) 0.23-0.49 mm (0.010-0.020 in)
Piston ring end gap - oil ring (steel rail) 0.05-0.66 mm (0.006-0.026 in)
Piston ring groove width - compression (top) 1.520-1.550 mm (0.060-0.610 in)
Piston ring groove width - compression (bottom) 1.520-1.530 mm (0.060-0.0602 in)
Piston ring groove width - oil ring 6.996-7.224 mm (0.275-0.2844 in)
Piston ring width - compression 1.49-1.47 mm (0.0587-0.0579 in)
Piston ring width - oil ring rail (2) 0.473-0.447 mm (0.0186-0.0176 in), 0.483 mm (0.0190 in) max. at ID
Piston ring width - oil ring expander 2.038-1.960 mm (0.080-0.077 in)
Piston ring-to-groove clearance - compression 0.030-0.070 mm (0.0012-0.0028 in)
Piston ring-to-groove clearance - oil ring assembly 0.046-0.196 mm (0.0018-0.0077 in)
Piston pin bore diameter 22.0015-22.004 mm (0.866-0.8663 in)
Piston pin diameter 22.0 mm (0.866 in)
Piston pin length 61.8 mm (2.433 in)
Piston pin-to-piston fit 0.005-0.010 mm (0.0002-0.0004 in)