Piston Pin, Engine
PISTON AND PISTON PIN CLEARANCEInner Diameter of Piston Pin Hole
^ Measure the inner diameter of piston pin hole "dp".
Standard diameter "dp"
Grade No. 0 21.993 - 21.999 mm (0.8659 - 0.8661 inch)
Grade No. 1 21.999 - 22.005 mm (0.8661 - 0.8663 inch)
Outer Diameter of Piston Pin
^ Measure outer diameter of piston pin "Dp".
Standard diameter "Dp"
Grade No. 0 21.989 - 21.995 mm (0.8657 - 0.8659 inch)
Grade No. 1 21.995 - 22.001 mm (0.8659 - 0.8662 inch)
Piston and Piston Pin Interference Fit
Standard Interference Fit = "Dp" - "dp"
Standard 0.002 mm (0.0001 inch) - 0.006 mm (0.0002 inch) = 0.0004 mm (0.0001 inch)
^ If clearance is exceeds specification, replace either or both of piston/piston pin assembly and connecting rod assembly with reference to specification of each part.
Piston Pin