Well my car does run well on magneto. Now I need to find the proper nut size to attach the top wire from the top of the magneto plug to the electrical box
I have researched google and the forum with no luck where would this info be so I do not need to ask these basic questions but do appreciate the help
Do you have calipers and a thread gauge? Also from the wording of your question I'm not sure if you are looking for the nut on top of the magneto connection, or the nut for the box.
Is it a Ford factory mag post and for what year ?
If it's pre-19, it's a round knurled thumb nut threaded #12 x 24. 1919 and later used a hex nut of the same thread. I think it was copper plated steel.
Steve I ASSUME it is a Ford magneto plug. It is the nut that holds the take up wire from the magneto threads on the top of the plug. I DO have a bolt chart gauge with all the different size holes. I suppose I can see what diameter that small plug top is and get some different thread sizes to see what works.
Photo would help us identify it, David - R.V. is quite knowledgeable for hardware stats.
12-24 is a standard thread and nuts should br=e readily available.
12-24 is a standard thread and nuts should be readily available.
Thread gauge, aka screw pitch gauge, aka thread pitch gauge:
Ace hardware has the 12-24 nut. Should be an Ace hardware close to you.
Ken and all thanks I need to buy the thread gauge that Ken Todd shows. Had the gauge with the holes in a piece of hard plastic to gauge the diameter of the thread but no luck with the parts from Ace today. I will go back tomorrow and try and buy Ken Todds gauge thanks again for the help
You could always take the mag plug out and take it w/you to get a nut to fit. Might not hurt to buy spares while you're at it.
The year of your car would help. I'm not sure when they changed to the hex nut from the knurled nut, but the early cars use the knurled nut
Larry, it was changed in late '19.