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Making a d bit reamer question...

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DavesWimshurst:
Sean,
As a way of checking the fit without hole measuring tools consider the following.

Looking at the plans I see that the rod bearing is .375" long and the rod is 1.625" between centers. The desired clearance will allow the top end of the rod to be rocked sideways about 0.020" (0.010" each way from center)



All this assumes constant diameter of the crank pin and rod bore as Bogs cautioned. 
Hope this helps.
Dave

seanol:
Dave,
That is exactly what I needed! I had every intention of making one today to try my technique bit had some issues with a drill, titanium and an overzealous desire to get to the d bit reamer. I think I can save the crankcase but the day is a goner :scratch:

Thank you all for your help and I will update this post when I start. It may be a little bit but I will return with either a good tool or a good story.

Either way I am learning! :smart:

Thanks,
Sean

Pelallito:
John,
Thanks for the explanation and drawings. i will try my hand at making one tomorrow.
Regards,
Fred

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