Re: 715 Alternator Rebuild Project Series
Post by adk4x4 on Oct 6, 2006, 9:19am

The second installment of this series shall be the stator rewind.

After close examination it was clear that the stator (the stationary coil of wire mounted in the frame of the alt, pictured in the bottom left of the first photo) was fried. The varnish was burned off the wires and they were black. The stator is wound in a delta 3phase configuration and each of the three coils of the winding is 18ga two-wire, 7-turns/tooth, 12 tooth design.

I am attempting to provide diagrams and such for clarity of the electrical speak.

So far I have stripped the wire from the core. If attempting to do this be sure you're ready to take some time and get a few blisters, caution besure to mark the beginning of the windings in the core, this can be figured out but better to be fool proof.



Like the recitier the stator also has epoxy on the ends to protect the windings making the turns. This will likely not survive the stripping process, and will require replacement.

I have ordered the replacement magnet wire (winding wire with integral insulation coating for motors and generators) from a supplier. The standard insulation rating is 155oC, I suggest getting the 200oC wire for a few bucks more.

More on all of this later.