Hello, I have a Townie 7D. A recent accident tweaked the pedal (right side) just enough to screw up the threads on the crank arm. I have removed the pedal and would like to use a tap to clean the threads in the crank arm. It is the right pedal and I believe that is the "normal" (aka not reverse) thread. Anyone know what size tap and thread count to use?

Thanks,
William