Dayton Vintage Speed
Look Ma, No Hands!
Of the things I commonly fix or repair are things like stripped pedal threads in old cranks. ( Most all have been TOC hard to find cranks. ) I machine an insert slug to size and drill the end of the crank arm out. I use a Bridgeport milling machine to drill the crank arm so keep it as square as possible.
I install the insert. If all goes well this is a press fit.
I then weld both sides of the insert.
I finish the welds off. Tap the hole to proper pedal size in this case 1/2-20. Then I re-patina the repair area if so desired.
Finished and pedal test fitted.
I install the insert. If all goes well this is a press fit.
I then weld both sides of the insert.
I finish the welds off. Tap the hole to proper pedal size in this case 1/2-20. Then I re-patina the repair area if so desired.
Finished and pedal test fitted.
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