Fordson Model F 1918-28 firing order

I just recently started working on a old Fordson and do not know the firing order since all the wires were unhooked from the magneto. After reviewing all of the pics on this site I am pretty sure it is a model f in the early 20s or teens. It has rubber tires and the rims so I guess its a later model. It also has made in england stamped on the firewall. I'm going to clean out the carburetor get the firing right to run it shortly then go from there. The magneto has a 1 on one of the contacts so i'm assuming that is the #1 cylinder but i dont know which way to go (clock or counterclock) to get the rest since its english and i've never worked on a fordson. Any help i could get would be greatly appreciated. This tractor is for a non profit antique tractor association. Thank you for your time. WFE

William, The firing order is 1243. You may want to go on ebay and get an inexpensive manual for the Fordson tractor. There are both originals and copies for sale.
Find the serial number just above the front manifold bolt and just below the head. This will tell you what year the engine is. There is a guide here in the "research and info" section to the left as you are reading this. Butch

It sounds like you have a Model N Fordson, which came from the factory with a high-tension magneto mounted on the front righhand side of the engine. The older F models had trembler coils mounted in a box on the side of the engine.

If your magneto is any good, you should get a spark from each wire, every two turns of the crank. With the spark plugs out, you should be able to tell which piston has just finished blowing out air through the sparkplug hole (under compression) before a magneto wire sparks. (hold wire end close to metal with an insulated tool) This is how you match them up. If this tractor is in the US it probably has a German Bosch (before 1937) or an American Bosch later. Canadian and English tractors might have come with Lucas magnetos. The tractor was built in England from 1933 to 1945, but not exported to the US during the war years. The British needed them for the home war effort. The US had the 1939 9N which pretty much pushed the English N off the market. The E27N came along after the War ended and quite a few came to Canada in the effort to build up British industry. Some had Perkins diesel engines which were a great selling point for an otherwise obsolete tractor.

Hello I need a block for a 1928 fordson F anyone please help. Thanks Darren