Farmall 300

JO in NoIA · Dec 11, 2008

Hey guys, I have been reading this website for many years and the wealth of information here is second to none! With that said, I have a Farmall 300 and I am needing to do some carb work to it. I think the float has a hole in it, due to gas pouring out of it when I open the sediment bowl valve. Where can I find a float for it? We don't have any CIH dealers near, just auto store and JD dealer. Thanks!!

James Williams · Dec 11, 2008

JO,theres a lot of places on the internet,On this web page ytmag can help you,just click on carburetors than the make and model

jimmy

JO in NoIA · Dec 11, 2008

Thanks James!

I am putting it up for sale this spring (due to my young growing family

). Kinda hate the idea of selling it as Dad and I refurbished it when i was in high school... Maybe someday I will get a chance to fix one up with my son!

rustyfarmall · Dec 11, 2008

Do a Google search for "Farmall carburetor".

Steven f/AZ · Dec 11, 2008

Are you sure it's the float? You would need to take the carburetor apart to see if the float has liquid in it...

I would replace the needle and seat first, much cheaper and easier.

Dick from Iowa · Dec 11, 2008

JO, When I turn on the gas to my 300, fuel pours out of the bottom of the carb - but that is because the float in mine just sticks in the down position. I "rap" the carb with a pair of pliars or the wooden handle of a hammer (sometimes more than once!) and the leak stops. My Dad showed me that trick he use to have an M that required that technique. I know I really should investigate the source of the problem but as long as I can tap it into working I probably won't tear into it. You might give it a try. My nickel Dick Davis

LMack · Dec 11, 2008

I have a Carter on a 200 that I have taken off a dozen times. The previous owner must have had that same problem since it looks like his favorite tools for working on it included a pipe wrench and a sledge hammer. The float sticks or the needle valve is bad. I have rebuilt the carb so it should not be the valve or seat but I intend to try replacing both. Mine will not run as long as the carburator is flooded. If that does not work I intend to get a new carburator.

LMack · Dec 11, 2008

I have a Carter on a 200 that I have taken off a dozen times. The previous owner must have had that same problem since it looks like his favorite tools for working on it included a pipe wrench and a sledge hammer. The float sticks or the needle valve is bad. I have rebuilt the carb so it should not be the valve or seat but I intend to try replacing both. Mine will not run as long as the carburator is flooded. If that does not work I intend to get a new carburator.

LMack · Dec 11, 2008

I have a Carter on a 200 that I have taken off a dozen times. The previous owner must have had that same problem since it looks like his favorite tools for working on it included a pipe wrench and a sledge hammer. The float sticks or the needle valve is bad. I have rebuilt the carb so it should not be the valve or seat but I intend to try replacing both. Mine will not run as long as the carburator is flooded. If that does not work I intend to get a new carburator.

mhmalcolm · Dec 11, 2008

There are a few on Ebay too.

Andy Motteberg · Dec 11, 2008

YT sells carb kits & floats. Just look on the left under "Shop for Parts".

JO in NoIA · Dec 12, 2008

Thanks Dick,

Maybe the needle is sticking? I will check that also. Most likely going to be looking at a rebuild.

mkirsch · Dec 12, 2008

Man I wish you were closer because I'm looking for a 300. You would know it went to a good home where it was shedded and maintained and enjoyed.

Pull the carb apart and take a CAREFUL look at the float pivot mount. My Super H needed a rap on the carb with a rock when it was first started up. Thought the needle was sticking. Dad took it apart. I took it apart twice. Then Dad took it apart again, and discovered that the pivot was bent ever so slightly, apparently causing the float to hit the side of the bowl when it filled. Wasn't a problem while the tractor was running because the fuel bowl was never full.

Hugh MacKay · Dec 14, 2008

Dick: Your remedy is much the same as mine, plus I think 10,000 others have resigned themselves to the same approach. I've talked with countless tractor owners, all makes. Many of them have spent hundreds of dollars on professional carburator rebuilds, only to have it still leak.

I have friend with all the Cockshutts that Cockshutt built themselves. No two tractors ever leak the same day, however they all will over a two week period. We've decided, only one solution, that being a good shutoff on bottom of tank and a rubber mallet or block of wood in tool box. Just some friendly persuasion to make float work as you turn the gas on.

Hugh MacKay · Dec 14, 2008

JO: There is some good news, CaseIH is once again selling steel needle valves. Much better than these plastic tip damn things we've been buying the past 25 years. I put one of these in my 130, and to my surprise it rarely leaks. Make note, I didn't say, "never leaks".

Now, you can read my responce to Dick Davis, I'm very skeptical that you can spend enough money to make your tractor carburator perfect.

Farmall 300

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