Piston: Testing and Inspection

1. Check the piston for distortion or cracks.

NOTE: If the cylinder is bored, an oversized piston must be used.





2. Measure the piston diameter at a point 15 mm (0.6 inch) from the bottom of the skirt.





3. Calculate the,difference between cylinder bore diameter on and piston diameter.

NOTE: If the clearance is near or exceeds the service limit, inspect the piston and cylinder block for excessive wear.