Fig. 2: Measuring the cylinder bore with a dial gauge
Check used piston-to-cylinder bore clearance as follows:
Measure the cylinder bore diameter with a telescope gauge.
Measure the piston diameter. When measuring the pistons for size or taper,
measurements must be made with the piston pin removed.
Subtract the piston diameter from the cylinder bore diameter to determine
piston-to-bore clearance.
Compare the piston-to-bore clearances obtained with those clearances recommended.
Determine if the piston-to-bore clearance is in the acceptable range.
When measuring taper, the largest reading must be at the bottom of the skirt.
