[T3] Horn Issue

[Max Welton]

As far as I can see it's just a solid rubber disk. But I didn't xray it. ;-)

The washers do not meet in the middle. But they clearly spread the
load out quite a bit so there's really no way to crush the rubber.

The whole assembly seems pretty stout.

Max

On Sat, Feb 14, 2026 at 12:11 PM Jim Adney <jadney at vwtype3.org> wrote:
>
> That's interesting. There's nothing wrong with having a metal bushing in
> there. It's important to have something that keeps the bolts from completely
> crushing the rubber. I assume those special washers meet in the middle to
> limit the crush.
>
> I believe the OG part had canvas molded into the middle of the rubber part,
> to give it the extra strength it needs. Does this one also have the imbedded
> fabric? I'd be reluctant to use it if it didn't.
>
> On 13 Feb 2026 at 13:40, Max Welton wrote:
>
> > We have a winner.
> >
> > This is from CB. No metal through-bushings.
> >
> > https://www.cbperformance.com/product-p/6241.htm
> >
> > https://www.thesamba.com/vw/gallery/pix/2650796.jpg
> > https://www.thesamba.com/vw/gallery/pix/2650794.jpg
> > https://www.thesamba.com/vw/gallery/pix/2650793.jpg
> > https://www.thesamba.com/vw/gallery/pix/2650795.jpg
> >
> > Max
> >
> > On Thu, Feb 12, 2026 at 11:12AM Jim Adney <jadney at vwtype3.org> wrote:
> > >
> > > On 8 Feb 2026 at 12:52, Max Welton wrote:
> > >
> > > > You called it Bob. This is a new coupler from ISP West.
> > > >
> > > > https://www.thesamba.com/vw/gallery/pix/2649673.jpg
> > >
> > > The test you're doing there is a really good test, with the full flex joint
> > > assembled and all the parallel paths in play, but a resistance of 228 Ohms
> > > would only draw 0.053 A (53 mA) at 12 V, which would only be noticable if
> > > you left the car sitting for a few days. (53 mA draws ~1-1/4 AH per day, and
> > > our batteries are 45 AH.)
> > >
> > > But your DVM only applies ~2 V and "resistors" like this can be voltage
> > > dependent, so a better test would be to apply your car's full voltage and
> > > measure the current.
> > >
> > > I though I had a couple OE VW flex disks somewhere, but I couldn't find
> > > them quickly. If I come across one, I'll try to measure it, or I'll just offer to
> > > send it to you.
> > >
> > > I look forward to what you find when you get the other flex disks.
> > >
> > > --
> > > *******************************
> > > Jim Adney, jadney at vwtype3.org
> > > Madison, Wisconsin, USA
> > > *******************************
> > >
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>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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