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Quote:
Originally Posted by Mark's 37
I am concerned about that too. Looking into doing some finishing for the surface. Got some fine steel wool 800, scotch brites, fine grit polishing compound to experiment with. Got any suggestions?
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I had my 29a rods redone by a machinist who did not grasp the concept of full floating bearings... They had strong cross hatch marks.
I have a small lathe, and I made a wooden mandrell the size of the big end, with allowance for 400 grit- or so- sandpaper ("hardware cloth"), torn into 3" or so- wide strips. After removing the cross hatch, I then polished the big ends with crocus cloth... I found that I did not have remove much material at all.
An important part of this is to do two rods at a time, flat sides held together. This keeps them square to the mandrell, and from getting belled at the edges.
As for clearance. I would assemble two rods on one crank throw. If they will fall independently, they will run.
Karl