Those dowels are far too tight of a press fit to get a weld to hold. Last resort method- - - -remove the crankshaft and use an electron discharge mill (EDM) to burn the dowels out. Buying another crankshaft would be less expensive, since it's the same as a 235 crank. A solid carbide drill bit in a very accurate drill press would be another option, which would also require removing the crankshaft.
Jerry
If it comes down to it probably get a new crankshaft. I doubled if not triple checked the alignment before I tightened them down. I could see all 3 pin heads. So with the downs reset in there the crankshaft will not turn correct?
Hank
