560 carb top half wet

whitepride · Jun 28, 2016

Please Help! My 560 runs for a while and then quits like its running out of gas. After setting for a few minutes it runs again for a few minutes. I looked down and noticed drops of water on top of carb. I touched the carb and the top half was cool. Please help. I have replaced everything up to the carb. Air cleaner, new oil in canister, new sediment bowl, gas line and card screen!

RogerinIowa · Jun 28, 2016

Water and cool, even frost is normal sometimes. They are not the problem.

You are not getting fuel flow.

whitepride · Jun 28, 2016

Do you think my carburetor needs to be rebuilt? Thank you RogerinIowa

rustyfarmall · Jun 28, 2016

(quoted from post at 11:59:17 06/28/16) Please Help! My 560 runs for a while and then quits like its running out of gas. After setting for a few minutes it runs again for a few minutes. I looked down and noticed drops of water on top of carb. I touched the carb and the top half was cool. Please help. I have replaced everything up to the carb. Air cleaner, new oil in canister, new sediment bowl, gas line and card screen!

It is more or less normal. Best work-a-round I have found is to start the engine and let it warm up while idling. If you could see inside that carburetor, you would know why it is cold to the touch. It probably resembles a refrigerator badly in need of defrosting. It has nothing to do with fuel flow.

Mark (EC,IN) · Jun 29, 2016

Get some HEET gas treatment and put in it.

I never have any trouble with mine till it gets down to 34-40 degrees, but it can't hurt to
try.

Tom Dowling · Jun 29, 2016

cold or frost is not a problem. somethings not letting fuel flow well. you need to pull drain plug on carb check flow if thats
good then maybe your float is sticking closed.

Bhunt · Jun 30, 2016

Just a thought If it would help you could hook up a clear tube to the open drain on the carb and tape it to the side of your carb and manifold since liquid will find its own level you will be able to see from the amount of fuel in the tube exactly where your fuel level is in the carb. Just a thought
Best of luck Byron

BarnyardEngineering · Jun 30, 2016

There is more to fuel flow than just rebuilding the carburetor. You have to look at the fuel tank, sediment bowl and fuel line also. Rust or crap in the fuel tank could cover up the fuel outlet. Smaller particles could flow into the sediment bowl and clog the filter screen. It's even possible that there is a clog in the fuel line itself.

The carburetors on these tractors are notorious for icing up until the engine block is warm enough to prevent it. It is normal. Look up "venturi effect" for an explanation as to why it happens.

rustyfarmall · Jun 30, 2016

Not too many years ago,before fuel injection became the latest rage, Cars and trucks all had carburetors. That frosting up problem was an issue, so that is why the ductwork was added between the air intake and the exhaust manifold. I remember it very well. You remove that ductwork and the engine would run just fine until you started it up on a cool, dampish day. I can remember having an engine that totally stalled out. I opened the hood, removed the air cleaner, and found the carburetor to be completely covered in frost.

Adding Heet to the gas tank did NOT have any effect at all.

560 carb top half wet

whitepride

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RogerinIowa

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whitepride

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rustyfarmall

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Mark (EC,IN)

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Tom Dowling

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Bhunt

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BarnyardEngineering

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rustyfarmall

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