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Okay Im going to remake my crank this time harden it and make a tighter fitting bush out of pb102 and hope it lasts longer.

Hello, Brian I have seen your webster build and good job I must say even used a design based on your crank throw dimensions ... I made sure the bushes was as true as possible but yea they will not be perfect for sure. Out of curiosity roughly how much has your engine run and what is the...

After some looking into it most likely more had 0.05 mm of play to start with which is way to much at a guess since a rough guide seems to be 0.025mm per inch diameter and I used a 8mm shaft so wants to be more 0.01mm of play ? I guess this design uses hydrodynamic mode which will not happen...

Hello, Few months ago I finished my first engine after not been able to resist building one when got a lathe less than a year ago and its the Webster engine and runs well (Well would like to make a carb that can fuel correctly throughout the full rev range but that's for another day)...