SAAC Forum

The Cars => 1968 Shelby GT350/500/500KR => Topic started by: RSOHC on February 26, 2021, 02:31:15 PM

Title: 1968 Electrical Wiring
Post by: RSOHC on February 26, 2021, 02:31:15 PM
I removed some dash parts for painting and upon installation of the parts I no longer have power to essentially all parts of the car.  This includes the headlights and tail lights, radio, all instrument panel functions and lights, courtesy lights, and the ignition switch (key to the left, start, and run).  Most of the wiring in the car is new and everything worked fine before the painting project.   The connection between the engine compartment and the interior of the car and all fuses are good.  The battery has a full charge.  Any ideas on how to proceed would be appreciated. 

Lauran
Title: Re: 1968 Electrical Wiring
Post by: Coralsnake on February 26, 2021, 03:09:01 PM
Is the console in or out?
Title: Re: 1968 Electrical Wiring
Post by: TLea on February 26, 2021, 03:22:57 PM
Quote from: Coralsnake on February 26, 2021, 03:09:01 PM
Is the console in or out?
+1   If ammeter not in or wires connected power will be not there
Title: Re: 1968 Electrical Wiring
Post by: RSOHC on February 26, 2021, 03:37:28 PM
The console is out of the car and the wires have been from the gauges and taped.  I will connected the gauges without installing the console and see how it goes.

Lauran


Title: Re: 1968 Electrical Wiring
Post by: RSOHC on February 26, 2021, 03:49:54 PM
Do I need to ground the gauges?
Title: Re: 1968 Electrical Wiring
Post by: Coralsnake on February 26, 2021, 05:56:12 PM
Be very careful

Failure to have alternator gauge installed properly and grounded is an invitation for Mr Sparky to come and visit
Title: Re: 1968 Electrical Wiring
Post by: RSOHC on February 26, 2021, 06:36:50 PM
How is the console grounded to the vehicle?
Title: Re: 1968 Electrical Wiring
Post by: Coralsnake on February 26, 2021, 06:39:22 PM
Its not but each gauge is grounded
Title: Re: 1968 Electrical Wiring
Post by: RSOHC on March 02, 2021, 05:35:11 PM
Attached is a copy of a photo with notes by a previous owner on wiring for the Alternator Gauge on the left on the Oil Pressure Gauge on the right. 

For the Alternator, the photo shows a Black wire on the left side of the vehicle and a Red wire on the right side of the vehicle. 

The attached Jim Osborn diagram shows a Red wire on the left side and a Black wire on the Right side.

What is the correct way for measuring the Alternator?



Also, what is the correct wiring for the Oil Pressure Gauge?  The photo shows Red on the left and Black on the right. 

The Jim Osborn diagram shows White and Red on the left and Black and Green on the right.

Lauran     
Title: Re: 1968 Electrical Wiring
Post by: Coralsnake on March 02, 2021, 06:02:45 PM
Oil pressure: green/ black lead is outboard side of gauge closest to gas pedal

Alternator: Red wire goes to negative side of gauge
Title: Re: 1968 Electrical Wiring
Post by: RSOHC on March 02, 2021, 06:16:26 PM
Which terminal is represented by the negative side of the gauge?
Title: Re: 1968 Electrical Wiring
Post by: Coralsnake on March 02, 2021, 06:22:27 PM
The one behind the "minus" on the face  ;)

I believe that is the "inboard" side of the gauge
Title: Re: 1968 Electrical Wiring
Post by: RSOHC on March 02, 2021, 06:59:40 PM
Photo of front of gauge is attached.
Title: Re: 1968 Electrical Wiring
Post by: Coralsnake on March 02, 2021, 07:40:58 PM
(http://www.saacforum.com/gallery/8-020321194010.jpeg)
Title: Re: 1968 Electrical Wiring
Post by: RSOHC on March 02, 2021, 09:05:46 PM
Thanks for the help.