Stator Coil Rewinding

[North]

Hey guys,

I was just thinking that since I was in the trade for almost 20 years that I would offer up my services in the event you need anything from a single coil done or all of them.

Initially [until I had the forms made for all] I would need your complete stator and would just charge materials and a small nominal fee + shipping.

Using Class H insulation all around will make these new coils easily last another 30+ years barring any physical intervention.

Of course if anyone has scrap stators to donate to the cause that will allow me to speed up the process considerably

Just thought I'd throw it out there to see if anyone is interested ;D

North

[mraxl]

Here is some info for the lo spd H1D/H2 coil:
"The low speed mic'd out (to me) at .0071" which is about .178mm. This translates to about a 34 gauge enameled wire. Given 700 feet, it calculates out to a nominal 213.5 ohms of resistance at this gauge."
Coils produced via this spec provide as good, or better, performance.

[mraxl]

There is a demand for KH400 hi/lo spd coils. They are unique and unobtainable and prone to failure.
They are wound on a bar for mounting. I believe they are dual wound (both hi & lo) on a laminated steel bar but I don't have one or even a good pic to confirm that.
III may have one?

[tomv]

North: Have you determined/come up with an approximate cost to do this service?
I might be able to come up with some cores to get you started?

[North]

Feb 4, 2010 7:22:01 GMT -5 mraxl said:

Here is some info for the lo spd H1D/H2 coil:
"The low speed mic'd out (to me) at .0071" which is about .178mm. This translates to about a 34 gauge enameled wire. Given 700 feet, it calculates out to a nominal 213.5 ohms of resistance at this gauge."
Coils produced via this spec provide as good, or better, performance.

Good info Dale,

I would still need the physical coils to verify circular mils per inch are consistent as well as verify the number of turns per coil and wire size [wire size confirmation is just an old habit from long ago ].

It's easy enough to hit the numbers I just need to make some, verify they work as intended, and finally have someone proof them for me once completed.

Thanks.

North

[North]

Feb 4, 2010 10:42:21 GMT -5 tomv said:

North: Have you determined/come up with an approximate cost to do this service?
I might be able to come up with some cores to get you started?

Hey Tom,

Honestly I know what these coils take to make and I don't want to make a killing so I was looking at initial cost of $50 for labour + material cost for complete rewind.

Without actually doing any yet I can't give any hard numbers yet but it will definitely be well under $100 regardless for a better than new stator.

North

[Soupdragon1957]

I would be very interested in getting my KH400 stator low speed coil re-wound...

SoupD.

[North]

Feb 4, 2010 21:46:59 GMT -5 Soupdragon1957 said:

I would be very interested in getting my KH400 stator low speed coil re-wound...

SoupD.

Sounds good Soup... just send me a PM and we can go from there.

North

[mraxl]

Here is more info on H2 low speed coils: kawtriple.com/mraxl/tips/coilwind/coilwind.htm

[North]

Feb 27, 2010 16:52:17 GMT -5 mraxl said:

Here is more info on H2 low speed coils: kawtriple.com/mraxl/tips/coilwind/coilwind.htm

Thanks Dale... I have to say though that shadetree coil winding by checking resistance isn't the proper way to wind coils.

Proper forms for the coils and verifying the number of turns on the original coils is the only way to guarantee that new coils will perform to spec.

Removing any insulation from the magnet wire prior to finishing the winding process [regardless of your re-insulation on the affected area] on such small wire just invites turn to turn shorts and premature failure in the coil.

Don't get me wrong I appreciate the effort of the person in question, I'm just used to making them last and you did give me a good smile while I was reading it

North

[rusty34]

New here, Hi everyone, 1st post (drum roll please)...

North, been reading up here on some of your stator testing and rewinding efforts with much interest. Have you made any decision yet whether to do some customer work? Reason I ask is I think I have an H2B stator problem which I believe may be an internal intermittent in the low speed winding. I would definitely be interested in sending it to you for testing to get your thoughts and observations about it.

Thanks, Rusty34
Concord, NC

[rusty34]

Please disregard above post. I recently purchased a good used stator from an H2B with 2K miles so am good to go now.

[North]

Sorry about that Rusty as I literally missed your first post. I'll be doing the work going forward just not in a high volume by any means

If needed just refer to the thread under the restoration tips forum.