I had a bad horn switch too. It is a stalk type, not the centre push on the
steering wheel. There didn't seem to be a way to remove the end piece, and
when I took the cowling off the steering wheel to get to the switch assembly
I found some DPO had pulled the wires out of the centre of the switch. I
also noticed the switch itself (which has direction and main beam controls)
had been rebuild using epoxy so I just had to buy a new one. Bah!
Hope you can fix it, they're expensive otherwise.
Andy
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of Chris Chandler
> Sent: Thursday, December 10, 1998 17:38
> To: MG List
> Subject: Horns
>
>
> Well, I've traced my problem to the horn switch.
>
> I started with the horns themselves. The DPO had the wiring all messed
> up... on the RH horn they had one purple and one black mated together
> for each set of terminals and on the other they just had them backwards.
>
> I straightened that around and began testing. Using a heavy lead with
> alligator clips on each end I tested each horn by connecting the lead to
> the purple/black terminal and grounding it.
>
> After I got done cleaning out my drawers after they nearly blew my ears
> off, I moved inside the car and checked for (and found) power running to
> the switch on both purple and purple/black.
>
> My next thought was perhaps a bad ground, although I had used the ground
> with my test light and found it to work just fine. To test this I
> decided to get creative. On the harness leading to the turn/bright/horn
> switch (before it got to the main loom) I stripped a small bit of
> insulation off of the ground and off of the purple black and touched
> them together. Horns worked magnificently! Obviously the grounding was
> sufficient.
>
> I taped that all back up and tucked it away and started looking at the
> switch.
> I cannot come up with any way to get inside that stalk to check the
> contacts. Is this something that can't be repaired, or is there an
> obvious way to take it apart that I'm just missing?
>
> As usual any and all help appreciated!
>
> Chris
> '72 B Roadster "Red Baron"
> '70 B Roadster "Ghost"
>
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