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Ford 9N, 2N & 8N Discussion Forum
:

Re: Bob's Front Mount External Coil conversion

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TheOldHokie

07-11-2019 12:14:25




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I doubt they could beat this for price or performance. This is my "proof of design" cover made from some Delrin (acetal) sheet/rod and a few bits of common OTS hardware. The HT tower screws into the top cover. The tower has an aluminum sleeve and simple spring loaded contact point in it that makes the HT connection to the OEM cap in the same fashion as the OEM coil so there is no need for modifying the cap. The backside of the cover is also relieved to clear the condensor so it can remain in the distributor if you are staying with contact breaker points. All that remains is to add a provision for the primary connection and a means of clamping it down. Right now I am considering three options for the clamping system:
  1. Add a spacer to the cover and use the OEM bail
  2. Replace the screw that holds the primary connection to the points with a stud and bring it up through the top of the cover as a terminal connection point for the primary lead. The external nut on that connection would then do double duty and clamp the cover to the distributor.
  3. Add a couple slotted tabs to the sides and use self threading screws in the holes for the bail to clamp them to the body.
Right now I am leaning towards #2 because it is easy and does both jobs but I am open to suggestions.

There are a few other details to work out but nothing major. I made this one by hand but I will be ordering a batch of the top covers from a CNC shop along with matching rubber or rubber impregnated cork gaskets "real soon now". I just need to verify all of the geometry is right before finalizing the drawing.

Kudos to Bob and Hobo - this is is way easier than gutting a coil.

TOH





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Benj R

07-11-2019 20:41:44




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 Re: Bob's Front Mount External Coil conversion in reply to TheOldHokie, 07-11-2019 12:14:25  
I would buy one of those. very nice.



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duey

07-11-2019 14:02:34




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 Re: Bob's Front Mount External Coil conversion in reply to TheOldHokie, 07-11-2019 12:14:25  
***LIKE***



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