I have a 27 Tudor Sedan 12 volt with original 4 cyl. engine. I am installing a distributor and 12 volt coil, plus a 12 volt alternator and need to know what to gap the plugs at. I am thinking .30 or .35, but not for sure. Does anyone know?
I gap the Model A's at .035, but I thought the Model T's were more like 0.022. I'm running 6v systems, does the system voltage make a difference on plug gap?
Model T "factory spec" is .03125", or to put it in the parleyance of back then, 1/32 o an inch. That's with Champion X's, or also with Splitdorfs, or any other original plug.
The instructions included inside the box of every Champion X plug tells the installer to set the gap at .025" for Model T Ford. I followed the instructions years ago and have not had a plug foul since.
