Piston, Engine

PISTON SPECIFICATIONS

Piston
Piston diameter (Measured at 90° to pin bore axis and 16.5 mm (0.65 inch) below oil ring grove)
Standard 82.953 - 82.975 mm (3.2659 - 3.2667 inch)
0.25 (0.01) oversize 83.203 - 83.225 mm (3.2758 - 3.2765 inch)
0.50 (0.02) oversize 83.453 - 83.475 mm (3.2856 - 3.2864 inch)
Piston to Cylinder Clearance
Standard 0.025 - 0.066 mm (0.0010 - 0.0025 inch)
Maximum 0.15 mm (0.006 mm)

Piston Ring
Piston Ring to Ring Groove Clearance
Top 0.035 - 0.065 mm (0.0014 mm - 0.0025 inch)
Second 0.030 - 0.065 (0.0012 - 0.0025 inch)
Oil 0.022 - 0.065 mm (0.0009 - 0.0025 inch)
Maximum 0.20 mm (0.008 inch)
End Gap
Top 0.15 - 0.25 mm (0.006 - 0.009 inch)
Second 0.15 - 0.30 mm (0.006 - 0.011 inch)
Oil (rail) 0.20 - 0.70 mm (0.008 - 0.027 inch)
Maximum 1.0 mm (0.039 inch)

Piston Pin
Diameter 18.988 - 19.000 mm (0.7475 - 0.7480 inch)
Connecting Rod to Piston Pin Clearance -0.037 - -0.013 mm (-0.0014 - -0.0005 inch)
Piston to Piston Clearance 0.008 - 0.026 mm (0.0004 - 0.0010 inch)