57 Ford 600 Rebuild - Now Carb is filling with gas!

TM_57Ford600 · Feb 2, 2013

Another newbie question on my great grandads 57 ford tractor rebuild.

I have not had a chance to crank it yet but was hoping to today...but my carb is filling with gas and and running out where the air cleaner hose attacks to the carb. What is causing this?

Thanks!

Anonymous-0 · Feb 2, 2013

Either the float is improperly adjusted or the float needle valve is not closing for some other reason.

Will Gumbert · Feb 2, 2013

Pretty common problem with the Marvel Schebler
carbs. As russ said, it is probably the needle
valve not sealing or the float cracked, sticking, or
out of adjustment. But it could be other carb
problems as well. Did you rebuild the carb recently?
You shouldn't run or crank it without fixing it
first. Rebuild is not difficult or expensive. Check
for gas in the crankcase oil too. -Will

old · Feb 2, 2013

Did you rebuild the carb?? If yes then the needle seat may not be tight enough or the float is set wrong or you have the new rubber tipped needle and it need to have a set put in it. It you have not had it open then it has rusted up or has dirt/rust in the float needle seat or other such thing. Some times if it is dirt/rust pulling the drain plug out and letting it flow for a few minutes will clear that up. If you pull the drain plug catch the gas to look for dirt etc in it

Douglas Lloyd · Feb 3, 2013

Like the others said, the carb is leaking gas through the float, and either needs cleaning or adjustment.

In your earlier post, you were looking for a fuel shutoff. You will find that the Ford N tractor fuel sediment bowl and shutoff valve will thread right into either of the two holes in your aftermarket gas tank. Not original, but much easier to repair or cheap to replace.

If you go this route for the fuel shutoff, the center hole in the tank will not offer enough clearance for an N sediment bowl assembly over top of the valve cover for the engine, so use the threaded plug here and close it off. Put the N fuel bowl assembly in the other threaded hole on the side and you will find that you can reach this from the seat of your 600. Very handy.

Doug in east TN

TM_57Ford600 · Feb 3, 2013

Thanks for all the replies. I did rebuild the carburetor but must have missed a step along the way. I am pretty sure it is the float.

I am going to tear it take it off, tear it down, and try again.

FYI - on my fuel line, I just added an in line valve in the area of the valve cover.

57 Ford 600 Rebuild - Now Carb is filling with gas!

TM_57Ford600

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Douglas Lloyd

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