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I plan to take a look at my magnets and use JB weld (slow cure/marine) to keep the magnets in place as has been discussed on this forum. I've looked through this forum and Youtube looking for pictures or video of how the JB weld should be placed on the magnets, with no luck.

Does anyone have a linky to pictures or video of how to add the JB weld to the magnet area?

thank you!
 

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I've read about this but don't know it the stator is in an oil bath or not. If it is, you'd need to de grease the area and then even up the magnets and use a bit of the JB Weld to prohibit them from moving in the future. Apparently not a lot of JB is needed to do the job.
 

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It is an oily area.
 

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I did it on my magneto rotor. Removed magnets from rotor, de-greased rotor and magnets (I didn't clean old epoxy from magnets) and reglued. Pic attached

I did it 4 months ago and no problems so far.

 

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That looks like a nice job of gluing the magnets into place. I don't see any JB Weld between them? That is something that I think makes this foolproof. Doesn't have to have the gap filled completely, just enough to form a bridge where there is a mechanical block keeping them from ever moving again.

The standard red and black packaged JB Weld is what you want to use. Do not use the quick setting version. The standard version is rated for continuous oil immersion and constant temps up to 400 degrees. Which will more than cover what it sees in this environment.
 

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How did you remove the magnets without damage?
Mike

I did it on my magneto rotor. Removed magnets from rotor, de-greased rotor and magnets (I didn't clean old epoxy from magnets) and reglued. Pic attached

I did it 4 months ago and no problems so far.

 

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I know of a couple owners that have broken magnets trying to get them out!

There is no real need to remove magnets. You can simply ( and delicately ) insert a screwdriver between them until the correct separation is met. This means you are not going to "glue" under them. But, so far from what I have followed here and on the SV 1000 sites there is no benefit from putting JB Weld under the magnets. Seems to work just fine filling the gaps between them enough to form a mechanical separation barrier. Centrifugal force and magnetic attraction keep them against the rotor surface.
 

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Agreed, the idea is to get something in between the magnets so they can't change position. They're not going to fall off; the failures are from sliding around. There's no need to pry them off, and even if a magnet is already loose, there's not much reason to try and get JB Weld underneath it -- you don't want to build up so much that it can contact the stator.

One thing to note is that JB Weld contains iron particles, and in my attempts to do this, it wanted to creep along the lines of magnetic force before it hardened -- if I used too much, I ended up with a hollow "bridge" between the magnets. A better approach is to use a little at a time and build it up more gradually.

A nonmagnetic epoxy putty that uses a different filler metal would probably be easier to use. Titanium Putty is crazy expensive, though.
 
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OK, I JB'ed mine but they were all solid and in position still.
Did as a preventative.
Gotta look into a Buddy's '06 1000 he just bought and see how magnet positioning is and do as a preventative also.
Mike
 

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Appropriate Amount of JB Weld for Stator Magnets???

Hi all,

I'm at a loss here. My K3 Vee was charging down in the 11 volt range last year, so I opened it up and sure enough, the stator magnets had migrated. I cleaned them off and stuck them back in place in the correct polarities, and then added JB Weld between them. A month or two later, charging in the 11 volt range again. The JB Weld had all disappeared and the magnets had migrated again. This time I put more JB Weld on, as much as I was comfortable with, and pinned it back up. Well, whaddya know, it's charging low AGAIN. I don't want to completely fill the gaps between the magnets, as this seems like it'll drastically increase the weight of the flywheel, but I'm really confused as to how much is actually enough. Does anyone have a picture of their successful JB Weld fix showing the amount of stuff they used?

Thanks in advance :)
 

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You shouldn't need much. When I did it, I pretty much filled the gaps, but that is really overkill. The magnets can't climb over the welding, so you only need to create a wedge between them. What kind of JB Weld did you use? There are different kinds, some more suitable to this application than others. Other than that, perhaps the surface was oil-contaminated and the weld did not stick. There are pictures of welded magnets in a thread someplace on this forum. Have a search.
 

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Sounds like you are using the quick set JB Weld. It won't hold up!

You must use the standard 24 hour cure formula. Black lettering on white tube and red lettering on white tube.

There is no need to fully fill the gap. Just put an equal amount in all gaps, or as close as you can.

This should be a permanent fix. I have seen NO problems with JB Weld dissolving or flaking off on the stuff I have used it on.
 

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Nope, both times it was the standard two tube JB Weld. I had a theory that perhaps the first stuff I used was old, so I bought new stuff for the second application, and yet here I am. When I installed your basket, Terry, I pulled lots of chunks of it out of the oil strainer.

And yeah- I thought that just enough to stop them creeping was enough, and then I made a full bridge between on round 2, but that didn't seem to work either. I'm worried if I completely fill the space that it will either not fill completely and unbalance the flywheel, or it will increase the weight significantly and be detrimental to the motor's character.
 

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Oh and the second time I heavily cleaned the inside of the flywheel with carb cleaner and degreaser and even scuffed up the gaps just a touch to help the weld grab on better.
 

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Try a final clean with acetone, some carb cleaners can leave a residue behind.

Oh and the second time I heavily cleaned the inside of the flywheel with carb cleaner and degreaser and even scuffed up the gaps just a touch to help the weld grab on better.
 

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I am at a loss on this. I have never seen any breakdown in the JB Weld. I was using it on the Super Tenere clutch baskets, a Final Drive Minder I used to sell, and of course on these magnets.

Even if you didn't clean it well, the epoxy should not dissolve or disappear. The only thing that comes to mind is mixing it properly.
 

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Check this thread, particularly #108, I post a pic of mine there (also sb visible in my album bike pics).

https://www.stromtrooper.com/dl1000...se-rotor-magnets-loose-stator-magnets-11.html

I made a wedge about 5 mm wide in a U shape. I haven’t had my case off since then, but my voltage is consistently perfect. I also installed a SH847 and my rotor is stock, I’m at 14.8 volts running heated grips, led lights. Just sayin you can get past this!

But a buddy had his jb weld fail in his Vee also so I’m curious to inspect mine (see @Wildoktor #140). His jb weld job vs mine (#108 vs #109). Mine is connected from left to right, no gap at all between the magnets. A hardened glob of jb weld is like rock, mix some up and for fun try to bite it in half. No way for magnets to crush it.
 
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