Does anyone know which number of Wizard (Western Auto) spark plug is the one for a Model T?
Here a pic of my 21 Touring using Wizard plugs.
They are marked Standard and the no. 18. You the the no. 18 just behind the plug wire.
They work fine!
Thanks, John. I believe that's the same number as the Edison plugs.
The Wizard of Menlo Park!
The Wizard plugs I have are a 1 piece plug. I'm not sure if they were made in the T era.
I think they were a economy plug. They were in my Grandfathers 24 Coupe when I inherited it in the 50's.
My opinion is they were made in the 40's or 50's.
That's my opinion anyway.
Does anyone know if one piece plugs were made back in the 20's?
Yes there were a lot of one piece plugs made during the Model T era, some even earlier. The Wizards you show above however are 40's/50's aftermarket items. I'll try and post a few pics of some early one piece plugs later.
These boxes have a 50's look to them. (4th photo)