Connecting rod inner diameter
Using an inside gauge, measure the inside diameter of the small end of the connecting rod.
- Standard Diameter: 28.026-28.038mm
Piston pin outer diameter
Measure the outside diameter of the piston pin with a micrometer.
- Standard diameter: 27.994-28.000 mm
Calculation of the oil clearance in the connecting rod bushing
(Oil clearance bushing small head connecting rod) = (Connecting rod inner diameter) - (Piston pin outer diameter)
- Standard gap: 0.026-0.044mm
- Limit clearance: 0.057 mm
If the clearance is excessive, replace the connecting rod and (or) piston and piston pin assembly.