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Farmall C ingition switch

D

Dean Olson

Well-known Member
The ignition switch in my C appears to be the original and has a sour spot in it that will not allow juice to the coil. It took hooking up a light bulb so I know when I have power and it'll
start. Is their any way to disasemble that switch and clean up the contacts. Spending $50 for a new original is not real appealing.
 
either get a new one OE style, or a new push pull from napa or advanced for 5 bucks. No way to service them really, either they work or not.


Andrew
 
It is made from alloy (white metal/Zinc) the crimp on the terminal end is made pretty firmly, and it does not respond to uncrimping well at all. If I were to try to fix it I would cut off the crimp with an Exacto razor saw. cutting all around to reveal the fiber disk. Taking it apart from there is easy. Cleaning it up should be easy. Putting it back together now requires clean surfaces, and gel-super glue. I would use clear finger nail polish to seal it after the glue sets. Jim
 
As the others have noted, between design and materials, there's no good way to get them apart/opened up. There's no reason to think that there's anything complicated in there -- the dead spot you're experiencing is even a little surprising -- so it may be a matter of some water got into it, either rainwater or condensation, and caused some corrosion that is breaking the contact in that one point.

Before trying to crack into it or buying another, I'd pull it off, try to get some solvent (WD40, electrical parts cleaner . . . ) into it, around the shaft and under the button,, and spend an evening or two working the button in and out from time to time while watching TV over a couple evenings, with regular additions of more solvent/cleaner, to see if you can break the crud looose and get it back working properly.
 
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