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How To Rewind an Alternator

Step 6120 degree phase separation rewind

120 degree phase separation rewind
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  • new 120 wind top.JPG
  • new 120 wind side.JPG
  • new 120 wind close.JPG
I decided to rewind the stator with the correct 120 degree phase separation and check performance before jumping to any conclusions.

The exit wires to the diode pack need a 1 slot spacing between them for the 120 degree phase power output. As they were in my old configuration in step4 was more like 60 or 90 degrees which resulted in the strange cloverleaf like coil spacing you can see in the pics in step5.

So if it looks odd it probably isn't right and wont work as intended.
For interest sake, the previous config yielded 12.2V @ 500rpm and the new proper phasing yields 17.6V at 500rpms.

As I said in an earlier step, pay attention to the original wiring, including the lead out wire spacing that I missed, take plenty of pics, because somebody else's eyes might pick up something yours missed. :)




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Author:petercd
general bloke type of tinkering