by Wes Gipe

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Recently I asked on Facebook for a source for replacement brushes for the wiper motor. I found a solution and wanted to share it here in case it helps others.

Our local electric motor repair shop had a high-carbon 1/4 x 1/4” brush for $10. I was able to cut that in half to make two.

I wrapped the brush in painter’s tape to help with making a clean cut. I then cut it in half with a Dremel and thin cutting wheel on medium-low speed. I was worried about chipping, but it cut very clean.

Then I wrapped flexible sandpaper around the rotor where the brushes ride and “pre-ground” the profile into one end so that they would make good contact right away.

And it works!