Hello Zilch
Your right about that. Same for the 2431's. The 2 I just got were in good shape overall however the one I dropped had the diaphram in backwards and I didn't see this until after I got the cover off. It also has a small crease in the diaphram that I certainly didn't put there but I couldn't very well go back to the seller and complain after I dropped it. Point is it was not "New" as advertised but for these prices how can you complain for what you are getting???
On another note EUREKA!!!! It worked I know have a working pair again. I would like to thank you all for your encouragement and ideas all around we should pat our collective selves on the back because we now have a viable repair if anyone else has a whoops with one of these. I tried an epoxy, got the shim out and just watched the top plate creep over to the pole in slow motion. I took a chance and used medium viscosity super glue. It worked like a charm. One thing however, I should have done a better job shimming. I depended on the material thickness and diameter of the shim to help hold the top plate. It didn't work it somehow found the thinnest part to creep towards. I am off -.005 on one side so I am under spec on the gap size over a small portion of the gap. The coil still is free and there actually is quite a bit of room in that gap otherwise I would be toast with that much offset. Really won't know if this worked until I measure the driver. But it sure looks OK for now. The glue is holding.
Hello norealtalent
That is a great idea to use a 2431 core and I had to laugh when I read it cause I didn't even think of it. I was hell bent on getting it fixed and thanks to you guys we did.
I found Ferro Fluid on E-Bay to recharge the driver.
Rob