My 1914 full restoration is coming together nicely..I decided to treat the restored engine to a brand new set of Champion 3X plugs. I gapped them to the .025 noted in the insert. Then it says insert firmly..not too tight, not too loose. Now the car is next to impossible to start. (it was starting on MAG with minimal effort)
So.. is there a better gap? The ones I took out are actually gapped at .035. And is there a recommended torque for the plugs? What happens if they are installed "too tight"?
.032-.035 No torque, just tight. Put a little oil around the base of the plug after you install, if it bubbles a bit no worry but if you feel inclined to, a little Teflon tape (don't really matter what type, I use white) or aluminum foil wrapped around the threads will cure that. A little Never-seize works too.
Aren't "3X" Model A plugs ?
"And is there a recommended torque for the plugs?" NO
As it says "insert firmly..not too tight, not too loose"
"What happens if they are installed "too tight"?"
They'r a real bXXch to get out.
Gary could have had a past flashback when he had his Model A's ....... Champion X Plugs, .025 gap suggested for magneto powered ignition.
Recheck the initial setting of your commutator.
My Ford service book says 1/32" gap which is just over .031
Send me message thru the forum, I'm live in the same county as you & willing to help with what I'm able.