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Page5　Conrods and Crankshaft
Conrods are(Weaver needs only one)planed to be made from gauge plate. But it is too hard to turn out. I made it from duralmin.

I have made many failures.

Crankshaft needs lap. I have never done before.
First I used Carborandum( I could not get diamond lap)and aluminum lap.
Aluminum lap has same solidity as crankcase journal.
After lap, under the bright sunshine, I could find something inside the journal. I thought that it was the lap which got stuck into the journal.
I made lap by acrylic bar. It went well.
And I made crankshaft just fit to the journal.
I had to to trial and error many times.


Next stage is turning out of clank pin.
To center the mandrel for it, I used stainless steel bar and dial indicator.




The crankshaft and the mandrel.