Speaker magnet loose on frame; Celestion V30

[jerryjg]

I bought a used Celestion Vintage 30 speaker from this dude who sells speakers on ebay under different names- "
I finally tried out the speaker which I should of done when I recieved it but did not, and the magnet is not rigidly attached to the frame, causing a slight wobble or rattle when shaken that causes a bad noise when played at volume. 
Anything can be done with this speaker , or is it for the junk heap? Thats 100 bucks I just flushed down the crapper!

P.S> I'm almost tempted to buy a couple tubes of JB weld and squirt it into the gap between the speaker frame and the magnet- think this might work?

[CraigB]

http://www.webervst.com/sptalk.html

jerry, pull your scroll button to about halfway down this page and look for this question:

From: Richard Canton

One of the two speakers in my amp has apparently developed a buzz or rattle. I don't think it is a voice coil rub because I can't hear the noise at low volume and it only does it when I hit certain notes. Any idea what the problem might be?

The answer may help you get that problem solved.  Hope it works!

Regards,
Craig

[jerryjg]

Yeah, heres whats happening with my speaker; ( From Weber website)...
QUOTE- sounds like the magnet assembly has worked loose and is resonating against the basket plateau. Let's look at how the magnet assembly is attached, then we'll try to find a resolve for the problem. For the past thirty years or so, most speaker manufacturers have used a staking process to attach the magnet assembly to the speaker basket plateau. When the front plate of the magnet assembly is fabricated, a punch press is used to punch out the round front plate. Then, a second operation punches the hole in the middle where the voice coil fits. A third operation punches either four or six holes in a three inch pattern around the voice coil hole. In this operation, the four or six punches don't go all the way through the plate, only about 3/4 the way. This results in four or six plugs or stakes to appear on the other side of the plate. At the speaker assembly shop, the basket is placed down over these stakes and a press flattens or mushrooms them out to fasten the plate to the basket. Some speaker manufacturers use a gasket between the plate and the basket, while others use a bead of glue. These are used in an effort to stop any rattle that may occur. The problem is that due to production tolerances, punch wear, etc., some of the stakes may not get pressed or mushroomed all the way out. After awhile, with vibration, these can work loose enough to cause the buzz or rattle.-"END QUOTE

I talked to Dr. Decible there at Celestion , and he said to go ahead and try and glue the speaker magnet onto the frame with silicone based adhesive. I used "Liquid Nails" ,though I probably should not have. He indicated that  the main probelm is going to be to see if the voice coil rubs after the gluing process. If it does, theres one speaker  here for the metal reclamation center and I just wizzed away a hundred bones.

Edit. Yep. Liquid nails was the wrong stuff to use. One speaker to the landfill.


 2nd EDIT- The Liquid Nails (  'for projects' stuff) seems to have worked after all, though it took a long time to set up. Might have actually been best to use, since it dries slowly and with some plyability, especially at first, to allow to shift the frame and magnet to align the voice coilwhich i would been screwed with a fast drying adhesive.
Installed in my 4x12 cabinet its working fine now, and I tried it for a good while at very  loud volumes.
If anyone ever tries this , maybe silicone adhesive would be best, andbe sure to work the glue into the innermost part between the frame and magnet, and also to anchor some adhesive on the frame  on and around the magnet. I'm keeping my fingers crossed, but looks like this speaker is now usable.