I was pulling apart my KEF Ref 102/3s to rebuild crossovers and ended up tearing the rubber coupler which holds the woofer in the enclosure. The rear mounting screw wouldn't budge and it just spun the coupler until it tore away. I had to stick the coupling rod in a vise to break the rear screw lose. Now i need to figure out how to repair or replace the rear mounting coupler.
Any ideas where to find or fabricate a replacement?
Any ideas where to find or fabricate a replacement?
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Wish I could offer some help but I’m not familiar with that setup. So that’s some kind of vibration mount? Can you get that flange that the rubber piece mounts to out? Looks like just two screws holding it in place? I’m guessing that part is unobtainable?
That last picture is kinda dark, can’t see it well enough.
Looks like it’s pop rivets?
That last picture is kinda dark, can’t see it well enough.
Looks like it’s pop rivets?
Yeah, sorry for the bad pics. Android based devices I have don't take the best shots.
The plate anchoring the rear bolt is attached to the back wall with 2 nuts holding the grommet, with the rod running through a metal eyelet (the piece which tore loose).
I may try some rubberized cyanoacrylic glue first. The rubber still feels pretty firm without much deterioration, considering these things were made in 1971, so they're 53 yrs old. Not bad, considering the crossover caps still measure almost perfect values.
The plate anchoring the rear bolt is attached to the back wall with 2 nuts holding the grommet, with the rod running through a metal eyelet (the piece which tore loose).
I may try some rubberized cyanoacrylic glue first. The rubber still feels pretty firm without much deterioration, considering these things were made in 1971, so they're 53 yrs old. Not bad, considering the crossover caps still measure almost perfect values.
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https://www.midwestspeakerrepair.com/product/rubber-grommets-for-kef-103-2-woofers-6-pack/
Not sure if the above are the correct size grommets for yours, but you might also find the correct grommet at a hardware store.
Thanks Art. Those are the grommets which go onto the guide bolts in the basket flange perimeter and hold it in place at the baffle. Good to know they're available. The neoprene orings from the hardware store are denser and probably don't damp as well. The originals feel like sorbothane. That back grommet is something I've never had to deal with before on these speakers. Clever design IMO.
