Topic: Coil Color Information Sought


HDDennis    -- 01-06-2025 @ 4:43 PM
  Just acquired this NOS Ford Coil and wonder what if any is the significance of the brown color? Is it mentioned in the judging standards?



Thanks for any help,

Howard Dennis


kubes40    -- 01-06-2025 @ 5:04 PM
  During the war there was a need to divert carbon black for war materials. Thus, the brown vs. black coils. These started showing up in production during the 1939 model year. They were mixed on the assembly line with the black coils. In 1940, only brown coils were installed upon the assembly line.

It will fit and function 1937 through 1941.
Most likely, although NOS, it won't prove to be reliable. Nice piece to have rebuilt though...

Mike "Kube" Kubarth

This message was edited by kubes40 on 1-7-25 @ 5:35 AM


HDDennis    -- 01-06-2025 @ 6:07 PM
  Thank You Mike,

Appreciate the help.

Howard Dennis


Carcheologist    -- 01-09-2025 @ 3:08 PM
  Kube,
You bring up an interesting observation about the coil not being reliable because it's NOS. If it has never been used and subjected to the severe thermal cycles of the engine and overall use, would that disqualify it from being fit for service? Do the coil windings degrade over time even though it's never been used? I would have thought that being NOS would make it a perfect candidate for use, however I respect the fact that you've had much more experience with this.


kubes40    -- 01-09-2025 @ 5:52 PM
  Many of these were "rejects" and as such placed into the service parts department. Also, yes, they do degrade over time.
I have had many NOS coils. I like them as the bodies are most often very nice in appearance. However, from experience I have learned they should be remanufactured to offer a great degree of confidence in their operation / longevity.

Mike "Kube" Kubarth


ford38v8    -- 01-09-2025 @ 8:59 PM
  The coil windings insulation break down with age, causing internal electrical shorts and coil malfunction when the coil is exposed to higher temperatures, typically in warm weather at a stop light. When allowed to cool off, the coil will function properly till it heats up again. Remanufacturing involves replacement of all the internals with modern materials.

Alan


kubes40    -- 01-10-2025 @ 7:16 AM
  Alan, I appreciate your detailed response. Thank you.

Mike "Kube" Kubarth


dean333    -- 01-10-2025 @ 10:50 AM
  I always send my coils to Skip Haney anytime I get a new Ford, running or not, as a safety precaution

TIM CARLIG


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Topic: https://www.earlyfordv8.org/forum/viewmessages.cfm?Forum=18&Topic=17397