All Fuel Explained

Unraveling the mystery behind the 1940 Farmall H's fuel system. It's a distillate engine, with a gas only system? Maybe...

[@Radioactivefrontiersman]

This helped me a lot. Thank you very much. Спасибо!!

[@davidsoldiron]

Glad it helped!

[@MichaelBrown-zp1sf]

Thanks for the video. My dad had one of these old farmalls as a matter of fact I think it was about a 1940. He told me several times about how they would use two different types of fuel in these tractors and his had the small tank for the gasoline. He never ran anything but gas in it but he knew about how it was designed to be used. I think it's kind of funny but we think of hybrid vehicles as being a more modern concept but Farmall tractors were doing this in 1940 and probably before that.

[@davidsoldiron]

Glad you enjoyed the video. Stay tuned for more tractor videos coming up, just as soon as the weather gets above single digits. Don't forget to tell your friends and family about the channel. Thanks!!! : ) Farmer Dave

[@jamesgage1831]

Yes they were Thay think there so smart today makes me kinda laff lol

[@jamesgage1831]

It may have been ship that way my tractor has the little gas tank and the livers in the radiator my dad disconnected the little tank and just runs on gas but it's cool to know that thanks for sharing this video

[@mytech6779]

Possible that the original gasoline intake was damaged and somebody swapped it out with whatever they could get off a parts tractor, you should be able to tell for sure by the compression ratio but this isn't so easy to measure. My late model 140 owners manual still has a distillate engine section and gives instructions for operation of a distillate engine on all gasoline: keep the temp gauge on the cool edge of the green operating zone using the radiator shutters, set the manifold heat to cold [or intermediate in cold weather under light load], and use the gasoline engine maintenance schedule.(basically a difference in oil changes) It also says for regular use on gasoline remove the tin heat shield in all but the coldest weather.

[@davidsoldiron]

So sorry for the delay in getting back to you on this topic. On close inspection, the original paint has never been touched where the "starting tank" would have been installed. This makes me believe that had one ever been installed, some rust or other discoloration of the paint would have occured. Plus, as far as we can tell, the hood is original to the tractor which would have had an extra hole in the right hand side of the top, for the tanks fuel neck to poke through. There isn't one on this hood. After speaking with several knowledgeable people that are very familiar with Farmalls of the early 40's, I have learned that the U.K. had different tractor fuels blend requirements (they were already at war) than we did here in the states prior to out break of WW2 for the US. I also learned that this tractor was 115 away in production numbers from a group of around 200 assorted IHC tractors models, that were being shipped to England in 1940 as part of the war effort. This is where this tractors construction gets a tad hazy. Being built for this country, it would have had an "All Fuel" system and it does indeed have the manifold for it. However there is no mounting bracket, studs or holes for the heat sheild, where it would have been installed on the manifold, nor is there any wear marks or other indications of ever having the heat shield installed. It does have the "All Fuel" main fuel tank. These tractors apparently used the normal "gas only" sediment bulb/fuel shut off (a Brittish requirement), but incorporated a modified fuel line for the All-Fuel system, so that it would attach to the regular gas bulb assembly. This was all part of the "Brit's Run" of machines as it was known by some at IHC back in the day. For whatever reason, this machine was a part of a "Brit's Run", but was never shipped overseas.

[@seniorelectrician6831]

many before that did that also the first ones made.

[@davidsoldiron]

The problem with Granddad's "H" is it is a pre-war model, that originally was tagged for shipping overseas, so there are some odd ball things with it. It never made it across the pond, as war materials took priority at that time. One of the "odd ball" things is the location of the fuel outlet in the bottom of the tank. The gas only lines don't fit it and neither do the all-fuel or distillate lines, unless you have the dual tank sediment bowl/valve assembly. This tractor never had the small starting tank installed and as far as I can tell, never had the all/fuel valve assembly installed in it. I mean, why would IHC install a dual fuel sediment bulb/valve combo with an extra opening in that valve assembly that didn't go anywhere? Your guess on that is as good as mine.