Electric wiper repair

[ryanheacox]

Looking for someone that does repair work on original Model A electric wipers. Mine works well for the most part but there is some notchyness in the transmission. Most of the time it only swings the blade about halfway through its range of motion. Not entirely sure what model mine is, I think it's a Heinze HA-C2.

On the other hand, if someone has good instructions on getting the gearbox apart, I'd give a shot at taking it apart and fixing it myself.