[T3] Fuel Gauge Grounding Solution

[William Jahn]

Jim you didn't dive into a rabbit hole at all , you just offered info.


On Thu, Jan 26, 2023 at 5:36 PM Jim Adney <jadney at vwtype3.org> wrote:

> On 26 Jan 2023 at 16:50, William Jahn wrote:
>
> >  My 73 already has a ground wire on one of the tabs on the back of black
> > plastic plug. It has a 1/4 female spade connector on it, forget which one
> > but it's a ground just for the fuel gauge. I noticed a few times that if
> I
> > turn on the 4 ways the gauge needle moves , I just reach up and pull it
> > off the tree on the left of steering wheel and see if it's tight and
> clean
> > , if clean , work it a few times and it clears the problem .
>
> Hmmm, guess I'll have to look into this a bit deeper.
>
> Okay, I just looked thru my stash of instrument panel bits and came up
> with 2
> different styles of bulb holder. The early one has just a rivet holding
> that
> brass ground connector sleeve in the holder; the late one has a 1/4" tab
> on
> the outside, held on by that same rivet. That tab is marked 31 (ground.)
>
> There's no date on these parts, so I can't tell when VW started this, but
> probably in '69. The parts book shows the latest part for all years, so it
> superceeded the early bulb base.
>
> I'll have to check my cars to see if its connected, and to what.
>
> The mod I suggested might still be useful for early cars, but for later,
> probably '69-on, it looks like VW already took care of this, but it has
> connection problems.
>
> Looks like I dived down this rabbit hole too quickly.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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