Foglights and other electrical gremlins

[chauser]

Hi

I'm working through a few electrical issues with a 73.5 911.

I've had the alternator rebuilt and replaced the VR with a solid state version.
This cured alt light on always.
This morning I noticed that the alt light glowed weakly at idle - this is the first time I have seen this since replacing the alternator/VR??


Foglights:
Pulling the FL switch I don't get lights or the red indator on the switch to light.
If I jump power from fuse 1 directly to the FL fuse (8 I think) I get lights on.
The relay appears to be OK: I swap it for the horn relay and the horn works.


Turn signals/fuel gauge:
With turn signals on, the fuel gauge bounces in sync

Ignition switch:
I have to have the key in just the right position to energize the starter.
Does this indicate the key is worn, or the switch is going south?

Appreciate suggestions.

Charles

[theweaver]

Sounds like an earthing problem.

There are a group of earth connections, behind or around the car radio. ( They tend to break). look there first, alternatively, clip an independent earth to the gauge etc and see if this cures your problem.

As for the ignition switch, I suggest that you buy a replacement at Porches grossly inflated prices, or check the non genuine route.

Fuse connections are generally an issue for lighting problems. I replaced my fuseboxes with the blade type, a bit of a fiddle, but cost me about £15... $25?