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1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1968 Mustang => Topic started by: mungus on March 03, 2024, 03:16:47 AM

Title: 68 What is this? Answer - Circuit Breaker
Post by: mungus on March 03, 2024, 03:16:47 AM
Yet another dumb ass question?.
What is the 2 post terminal thing circled in red?
Mounted to a zinc plated folded piece of panel steel, which itself is sandwiched between the fuse block and the insulation pad? My old harness has one and yet the factory electrical assembly manual doesn?t seem to show it?
Thanks in advance. Memory is failing me!  ::)
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: 67gta289 on March 03, 2024, 07:40:34 AM
A circuit breaker (with automatic thermal reset)
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: midlife on March 03, 2024, 11:18:44 AM
I believe that circuit breaker is for air conditioning.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: mungus on March 03, 2024, 11:37:32 PM
Thanks everyone.
BTW the car is non AC.
So may I ask, what is it that CB for?
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: ruppstang on March 04, 2024, 12:44:18 AM
Do you have fog lights?
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: mungus on March 04, 2024, 05:01:04 AM
Alas I cannot find them amongst my box of lights the PO included, but it was a GT equipment group car so I presume it had them once. And upon checking the web stores it does indeed look like a fog light CB. So I guess that is it?
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: 67gta289 on March 04, 2024, 07:02:00 AM
The circuit breaker itself will not tell.  What are the wire colors (including stripes, if any)?  If the colors don't provide the answer, you will have to chase the wires down to their destination.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: ruppstang on March 04, 2024, 09:22:55 AM
As Midlife said the yellow would indicate AC but who knows what kind of creative wiring has been done. Mugnus if you do not have some assembly manuals you should get some, they will help you a lot. The electrical manual shows all of the circuits and wire colors. Fog light wiring is grey and blue.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: mungus on March 04, 2024, 01:17:57 PM
As I said in my first post, I have the Electrical assembly manual (plus all the others), and that part is not shown.
Presumably as it is for the GT option only?

The colours on my harness for both wires, are blue with a black trace. 
The first photo is from elsewhere but shows the part better than my own photos.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: jwc66k on March 04, 2024, 01:28:44 PM
That is an added by a previous owner item. Not stock.
Jim
Corrected in later post.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: mungus on March 04, 2024, 01:38:52 PM
A quick search reveals all the reproduction fog lamp harnesses I found have the same colours as mine. Blue with a black trace. And my original harness had those wires taped inside it. No sign on them being added later.
Blue with a black trace as far as I can see.

Anyway mystery solved, it appears to be for the GT fog lamps that were fitted when new.
Thanks.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: ruppstang on March 04, 2024, 01:57:44 PM
That is an added by a previous owner item. Not stock.
Jim
The Z bracket is a Ford part and was used for optional equipment such as AC, Tilt wheel, Fog lights and seat belt reminder.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: 67gta289 on March 04, 2024, 03:17:14 PM
The Z bracket is a Ford part and was used for optional equipment such as AC, Tilt wheel, Fog lights and seat belt reminder.

+1.  Also convenience control low fuel relay.  With all of those, it gets tight.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: jwc66k on March 04, 2024, 04:10:10 PM
Correct my previous post. It is Ford engineering part number C8ZB-14A301-A, bracket, as shown in the 1968 Mustang Electrical Assemble Manual (AM0023), used for mounting circuit breakers used for fog lamps (pg53), safety convenience group (pg56) and air conditioning (pg83). Strangely, the 1968 bracket does not appear in the 1975 Ford Car Parts (aka MPC), but is in the 1960-68 edition (C8ZZ-14A301-A, as do two variations used in 1967).
Jim
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: 67350#1242 on March 06, 2024, 07:57:35 PM
Quote
Thanks everyone.
BTW the car is non AC.
So may I ask, what is it that CB for?

You say car is non-A/C?  Sure looks like an A/C blower next to it??
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: ruppstang on March 06, 2024, 08:14:20 PM
You say car is non-A/C?  Sure looks like an A/C blower next to it??

Yea it through me off too. He was just using the picture for an example. His part is in reply #10.
Title: Re: 68 What is this? Answer - Circuit Breaker
Post by: 67350#1242 on March 06, 2024, 08:28:28 PM
Ah, I see.  Thanks.