Topic: 1969 351 windsor dist.

[1969 Cale II]

On the wire that that goes from the distributor to the coil, primary wire, what color is the plastic 90 degree fitting to the coil? Mine was broken off and I can recolor a replacement wire.

[J_Speegle]

Took a few minutes to find it in the search. One thread showed the robins egg blue but in another thread ( a little deeper search of the information turned up what appears to be a running change from red to robins egg blue during the production year or at least the possibility IMHO

Believe these were posted in a prior thread. But this thread is related if you have a later car

http://www.concoursmustang.com/forum/index.php?PHPSESSID=vaqr6b11ui29006lf1ct7oquf5&topic=14530.msg90692#msg90692



9F01M126xx



9F02M48xxvery early



9R02M170xxx


+++++++++++++++++++++++++++++++++++++++++++++++++++


9F01M198xx



9F02M216xxx

[7Lscjracer]

Looking at these pics, I see there are red boots having a black wire and black boots having a red wire.
What were they thinking, or were they simply just not?

[J_Speegle]

Looking at these pics, I see there are red boots having a black wire and black boots having a red wire.
What were they thinking, or were they simply just not?

Sure a number of well paid engineers had a reason.  Not sure why the wires and boots should match one another. Personally don't see anything odd with those combinations

[1969 Cale II]

Thanks Jeff, didn't it had a change. Mine is a March build.

[7Lscjracer]

...Not sure why the wires and boots should match one another. Personally don't see anything odd with those combinations

Red for hot, black for not.

[J_Speegle]

Red for hot, black for not.

Not certain that each of those are solid red or solid black so not sure if that "rule" applies. But I'm far from being a engineer or whomever designs these things 

[midlife]

There are many examples of 90* slip-on connectors with black molding that are definitely not grounds!  All 1966 dash cluster slip-ons are black molded.

[jwc66k]

There is no rhyme or reason for Ford's use of colors on connectors. However, the color codes on wires seems to have some consistency. For example, the black-blue stripe wire used for door activated courtesy lights on 64-66 Mustangs is the same color wire on my 1999 E-250 Van. It's identified as wire "53" for both, and I assume for years in between. There are other wire colors that Ford used over the years, the green-yellow stripe wire, code "54", used for hot all the time lights, glove box for example, or a hot lead to the clock, for another example. It was strange when I was wiring my Van to see familiar colors for the same functions. It's probably Ford's desire to NOT reinvent the wheel for each model year.
Jim

[7Lscjracer]

I can certainly take solace in that consistency across the years.
I was just thinking for the priority ones, battery cables and coil wires, black and red should have been the go to choices.