The auction M part 8. Update to surging lugging down

1939farmall · Oct 4, 2021

Last week I posted that we were running the M around and I noticed it was really lugging down under any kind of a load. I was thinking it might be a problem with the governor. Most of the comments I got said it was most likely a fuel problem. I was wrong and you guys were correct! I had time to look at it today and sure enough I got very little gas flow at the tank. So now Im draining it and Im going to pull the sediment bowl out and see if I can add a short stand pipe in it so Im not sucking off the bottom. The tank looks really clean but it seems like its plugging up with very fine rust. Maybe from under the baffling where I cant see? Thank you all very much! I really appreciate your help! To be continued. . . .

560Dennis · Oct 4, 2021

Keep us in formed. Good help to others . May have already done this, run under size drill in the fuel passages of the sediment bowl . to cleaout the white lime stuff .
Remove the screen from the carburetor in let and give it a good cleaning the rust may have clogged up it. Also .
While your at it you may have to clean the rust out of the carburetor idle circuit.
The rust dissolved with a chem in the tank but about some what to recommend .
Not one thing to fix but the whole fuel system is the way it goes in most cases .just do one thing and all the others will get ya.

1939farmall · Oct 4, 2021

I took the carburetor off and cleaned it again. Clean out the fuel line. Took out the sediment bowl and cleaned it out. Then to try to prevent this from happening again I drilled and tapped the inlet on the sediment bowl to accept a brass fitting. Hopefully that will give me enough height off the bottom of the tank to stop it from plugging up.

rustred · Oct 4, 2021

and also install that fine screen above the sediment bowl and it will be good as from factory. those screens get thrown away. and that is what causes problems. your on the right track.

GordoSD · Oct 4, 2021

Are those cigarettes?

1939farmall · Oct 4, 2021

Unfortunately they are.

kris Jensen · Oct 4, 2021

I have had similar problems with my A.. It is now basically a trailer queen, and not used much
Condensation created a fine rust which is a gunk in the bottom of the tank. I took of my tank and washed it with hot water under pressure.
Then I blew it dry with compressed air, Then I put in a bit of diesel fuel and sloshed it all around the tank, drained it and let it sit in
the sun for a few hours. It is relatively easy to make a screen for the inlet of the fuel bowl and shut off Where you put on the brass adaptor, make a roll of fine screen about an inch and a quarter long and insert inside the fitting. An old coffee filter cone can be cut. It is fine stainless steel. Roll it like a cigarette and insert in the fitting. New sediment bowls come with the screen inserted (or should)
It is a couple of hours of frustrating work, but makes a real good cure.
Kris

jal-SD · Oct 4, 2021

I've used a short chunk of 3/8 inch tubing to make the same type of inlet above the tank's floor.

Pete in Holland MI · Oct 4, 2021

I've pressed in a 2 long piece of copper tubing into the inlet of my sediment bowls. Pinch the end shut. Cross drill from all angles with a 1/16 drill a couple dozen times. Allows big chunks to float around the tank but not shut off the hole. Tiny ones that get past the 1/16 holes accumulate in the glass bowl.

Your fitting you have installed, install a piece of copper tubing described above.

504 · Oct 4, 2021

Be sure to check the screen in carburetor at the end of the fuel line.

The auction M part 8. Update to surging lugging down

1939farmall

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560Dennis

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1939farmall

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rustred

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GordoSD

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1939farmall

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kris Jensen

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jal-SD

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Pete in Holland MI

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504

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