Electrical Gurus, I need help...

I have a Farmall 460 D that we bought after it suffered from an electrical fire. It had set for a year or 2 after the fire. I believe they had pulled the battery cable off to stop whatever caused the fire, and then used water to put out the loom,chaff,grease,etc. I rewired it, got it running, but had to pull start it, as the starter would turn, but had a huge amp draw. Well, I tore the starter apart, and it was solid rust inside. I believe that when they sprayed water on it to put the fire out, it got inside the starter and just laid there, rusting it over time. I took it all apart, and laid it out in order, cleaned up the brushes, sandblasted the housing, the brush holders, and the metal parts that hold the "windings"(can't remember the proper name), to the housing. I'm pretty sure I got them back in the right way, I was told they have to go a specific way, but I may have got them mixed up during reassembly. Anyway, I checked all the electrical parts for open circuits and/or for being grounded out. I put it back on and it spins GREAT!!! Only it spins the wrong direction now... Did I somehow get the brush and or brush holders hooked up the wrong way? I'm usually pretty good at understanding how a starter and electrical stuff works, but it just seemed that all of the brush holders went back only in one spot, and wouldn't go in any other spot. But I'm not an electrical engineer or electrician like many of you either. Thanks!!

Ross

The ground and insulated brushes somehow need to be swapped in position to the field coils.

Perhaps, somehow the endbell holding the brushes has be rotated 90? in relation to the "belly", or, I suppose, more likely the field coils have been installed one position off the the right or left.

If I had any ambition, I'd BE an electrition...

Yep you likely ended up with the fields wired bass ackwards. To change the direction you had to reverse EITHER the armature or fields with relation to each other and Id guess its the direction of the current flow in the fields you have backwards. I cant tell you from here how to fix it, but if there were an easy way the ends of the field winding leads could be swapped with each other that may do the trick. As posted if you changed the brushes if that's easier that may be the way to go.

John T

I remember when my buddy got his starter for his jeep back from a rebuild shop it turned the wrong way. I think in 7th grade science class we learned electrical theory, we switched a couple of brushes or wires around and it worked right. Don't feel bad, anybody can make little mistakes, just correct it and you have learned something of value, congratulations!

Dang it Russ, and I thought I had it!!!lol until it turned backwards and threw the starter drive away from the flywheel. But, you're right, once I get it figured out, I will have learned something. Your encouraging words are appreciated!

Ross

Thank You John T, I'll take a crack at it in the next couple days and see if I can make a go at it!

Thanks Bob, I'll have to look at it in depth up close and see where I went wrong. With everyone's suggestions, I should be able to get it figured out

Or the battery ended up wired backwards.

(quoted from post at 11:42:06 10/17/16) Or the battery ended up wired backwards.

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Has nothing to do with starter rotation direction.

did you put the parts on opposite ends of the starter body thus reversing polarity? like swap ends with the nose cone an brush plate?