A long term project is the rescuing of a 1920-1930 high wheel garden tractor. One of the spark plugs found in the machine is a "Champion-Ford." So one can assume that if there is a Ford spark plug in the machine it is a Ford tractor - yes? I went searching for new spark plugs today at a long established feedmill/tractor supply store. They were gracious enough to look through the old stock for two new plugs. Of course, the old stock of Champion X and A-25 are long gone. They called their supplier only to be told that the product is no longer available. So for those who enjoy discussions I have attached a picture of my Ford Tractor and plug.
Not original but a pair of these will work
and they are readily available
Don't think that's a Ford. Universal, perhaps? Engine looks like a two cylinder Wisconsin.
Or a Standard Twin?
Looks like a Standard Monarch Twin to me.
GR Cheshire thank you for the spark plug information.
The tractor is Viking. Based on the information found, it is circa 1928. Data states "B*******" block casting numbers place them in that year range. The fuel is supplied with a Tillotson Carburetor and a Wico magneto. And yes the Ford Champion plugs were found in the motor.
Is that ½" pipe thread? If so, I expect a regular Champion X like you use in your T would work.
Jeff, yes a 1/2 inch. The plugs that were with the motor were the "Champion - Ford." The photo of the tractor has a Champion A-25 and an AC 26.
George, they are still available but Champion gave them new stock numbers. The X plug is now a 425, and the A25 plug is now a 525.
For some reason, some suppliers can't cross reference the numbers, but they are available.
I wonder if that is the rite plug that eng. needs? I would think it would have newer 18mm with gasket? maybe someone forced in what they had?
I have a Fuller and Johnson 2NC hit and miss and a McCormick Deering 3-5 HP and I have found that on smaller engines; it seems that any plug that fits will work.