Don't you also have to open up the tach and solder a diode the other way,
or something like that?
And wasn't there a similar issue with some fuel pumps?
Ulix (positive ground)
On 22 Jan 1998, Randell Jesup wrote:
> Ulix Goettsch <ulix@u.washington.edu> writes:
> >> I have a sprite that is positive earth and was wondering, what kind of
> >> problems is this going to cause me when i want to install a stereo?
>
> I blew up a CB radio when in high school ('80) when I forgot about
> this.
>
> >> My uncle is a truck driver and said that lots of trucks are positive
> >> ground and i could probably buy a radio for a truck and use it. Any
>
> If you can find one, great. Not common by any means. I used to
> have an AM ground-switchable radio in my first Sprite.
>
> >If not, you have to keep any metal on the radio from touching the body of
> >the car. Mine is mounted to a piece of wood which is mounted to the body.
> >Also the antenna has to be insulated from the body where it mounts to the
> >car.
>
> Too dangerous: if something touches, poof. Switch the ground of
> the car. The procedure is fairly straightforward except for switching the
> tach (if it's not one of the early mechanical tach cars). Even the tach
> only requires cutting and reversing the wires to the loop, if I remember
> correctly. You also have to reverse the coil connections, the fan
> connections I think, and repolarize the generator.
>
> --
> Randell Jesup, Scala US R&D, Ex-Commodore-Amiga Engineer class of '94
> Randell.Jesup@scala.com
> #include <std/disclaimer>
> Exon food: <offensive words no longer censored - thank you ACLU, EFF, etc>
>
Ulix __/__,__
.......................................................... (_o____o_)....
'67 Sprite
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