Running a Farmall M on a dead cylinder

frank kutlak · Jul 26, 2016

When I was bush hogging a low tree limb whipped against my M and I did not realize it at the time but it pulled the plug wire off of the first cylinder spark plug. I drove it for another fifteen minutes before noticing it. it now runs rough and when I started it oil blew out of the air filter intake from its oil bath. I changed the plugs and plug wires but it still does not seem right.
What do I need to do to get it running right again?

Gary H. · Jul 26, 2016

Not to over look the obvious , but I assume you did get the plug wires back on the right plug?

Bob · Jul 26, 2016

With the wire off of the sparkplug, the secondary voltage has no (proper) place to go so it often seeks a path inside the distributor cap to a neighboring high-tension terminal, and burns a "carbon track" in the bakelite distributor cap.

Take a close look for that, sometimes it's possible to sandpaper down to clean bakelite, otherwise a new cap will be needed.

Steve@Advance · Jul 26, 2016

That it blew oil out the filter, could be cross wired, or the cap carbon tracked.

Might take a look at the plugs again, if that cylinder was oiled up from not firing, it could have splashed the new plug. If so just clean it up.

old · Jul 26, 2016

As the others have said and also if the plug wire you have are the carbon type good chance the plug wire is now bad due to being pulled off by a tree limb and or the tree limb hit the cap and also cracked it so now it is cross firing

El Toro · Jul 26, 2016

Bring No1 piston near the radiator to TDC on the compression stroke then look at the rotor to see if it's pointing to the No1 plug wire on the cap. Hal

Running a Farmall M on a dead cylinder

frank kutlak

New User

Gary H.

Member

Bob

Well-known Member

Steve@Advance

Well-known Member

old

Well-known Member

El Toro

Well-known Member

Similar threads