farmall M carb kit myself or buy rebuilt?

michaelr · Feb 7, 2016

Heya,
I have put in a carb kit myself once in a Farmall M. Even cut out my own gasket. However I probably just lucked out that I did it right, and it was pretty much good working before I took it apart.
Think this time around, i want a carb that was put together by a professional.
I know they appear simple with just a few pieces to them, but perhaps when a pro rebuilds them he does all sorts of stuff I am just not aware of.

You guys know anyone who is a professional at rebuilding those carbs?

rustred · Feb 7, 2016

if you did one and happy... do it again! how else do you get better? nothing that hard. just a good soak in carb cleaner, rinse in cool water and blow dry including all passages. cleanliness is the thing. and setting the float and checking it for cracks. when it comes to replacing the worn bushings is something a professional may be better at but you can do that too. i have soaked and cleaned many a carb and seldom put the kit in. i make the gaskets and make sure the needle is not worn. that is a problem thing. its the dirt and rust that causes you grief. have a good clean gas supply and these old tractors run pretty darn good. and now remember when you talk carburator with the young guys they get scared of them,lol. they need a computer to set things!

Bob M · Feb 7, 2016

I agree with rustred - do it yourself!

The M carburetor is simple. Keep in mind it was designed to be maintained by people with minimal formal education, and only the most basic hand tools.

Buy a good carb kit and for it!

2farmRon · Feb 7, 2016

Do it yourself. I bought a rebuilt carburetor from a so-called professional for my H because the bowl was damaged on the original. It poured gas out the bottom when I installed it so I removed it and found the floats height was all wrong. I fixed that and reinstalled it but it wouldn't run. Being a busy guy I let it sit until I found one someone pulled off another tractor a took a chance and bought it and bolted it on and it runs good now. I'll rebuild the "rebuilt" carburetor that I paid 3 times what the used one cost me sometime later. Just because someone says they are a professional doesn't mean it's true.

old · Feb 7, 2016

I've rebuilt a good many carbs over the years and the y are pretty easy to do. Buy a good lit like say the Walker brand kit sold at O'Reilly's auto parts store and a good soaking for 24 or so hours in a good carb cleaner and then spray it outwith spray carb cleaner and poke out all the passage ways wit ha small wire or as I use a torch tip cleaner tool then spray and blow out again.

rustyfarmall · Feb 7, 2016

The big issue is knowing exactly where those passages are, so you can thoroughly clean them out. If the carburetor in question is from a tractor that has just sat for quite some time, the carb cleaner will NOT get into all those passages. You will need to poke a fine wire through them to loosen the crud. The best advice I can give is to disassemble the carb slowly, and try to understand what each part does, and how it does it in correlation to the other parts, and to the carburetor as a whole unit. Once you understand how a carburetor works, rebuilding one becomes a lot more straight forward.

jeffcat · Feb 8, 2016

They are not that hard but as you go, { slowly } make a lot of drawings and or use your digital camera. Those pictures can help soooo much!

FBH44 · Feb 8, 2016

Yes, go for it. I'd recommend doing what I have found to do, when I dissassemble something; Clear out a wide flat space on work bench, and start removing and placing items / screws / gakets / parts in sequence, start storing them on the far corner. Reassemble in reverse order. That way you'll know what to do next.
Other thing, I have found the new float in my kits [ I got from eomewhere.. ] were set at the correct height to begin with. MIght be helpful, they might all be set correctly for all I know.
Use one of those little LED flashlilghts to see inside passages, they are really bright and good.

farmall M carb kit myself or buy rebuilt?

michaelr

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rustred

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Bob M

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2farmRon

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old

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rustyfarmall

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jeffcat

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FBH44

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