what stops the fuel while uphill parking

[TomInCologne]

Okay, i admit that i am struggling with setting up my carburettor. This question keeping me awake during the night:


What stops the fuel from flowing out of the main jet when the car is parked uphill?


Let's assume the float valve is working fine and the float level is perfect. When the engine is off, the orifice of the main jet is a bit higher that the float level so fuel does not flow out. But what if the car is standing uphill? Will the orifice then not be lower than the float level?


Where is my intellectual know?


Thanks in advance...

[mass A man]

On a steep hill, nothing will stop the fuel from weeping out the jet, I guess. A good reason for those who park on steep hills to shut off the fuel valve and run the engine out of gas. Some older cars had a carb with a slight downward front angle built into it where it bolted to the manifold. Perhaps this was for the very reason you ask.

[Big hammer]

I wonder what AA owners did when they were at the grain elevator ? They would raise the front of the trucks to dump the grain !

[TomInCologne]

so, i understand that it's pretty normal, that the carb overflows when the car is at an angle. my car is a 31 s/w, so the fuel valve is under the hood.


Does anyone have an alternative to the fuel solenoid valve that snyders et al sell? maybe something more ancient looking?

[jsulliva]

Everyone I know has an auxiliary fuel shut off valve. Put a gas/fuel compatible ball valve under the dash in the line from the tank to the firewall. I suggest close to the tank where you can reach it from the driver's seat. It is fairly well hidden there; you can't see it unless you are under the dash lookin in that area. I have a 30 Cabriolet with the valve at bottom of the tank inside the car; I had replaced valves several times and which always started leaking after a year or so. I have the strainer in the tank but little rust particles find their way past it and spoil the already mediocre valve. The glass sediment bowl would fill in a few hours with the valve shut off. I gave up on it and added the ball valve. I always use the original valve, but if parked for more than a few hours, I will also shut off the ball valve.

[Keith True]

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He has the 31 with the valve under the hood,so no piping inside to work with.I really don't see any feasible way to remotely shut the valve off under the hood without going to the modern electric one.

[katy]

Originally Posted by jsulliva

I have a 30 Cabriolet with the valve at bottom of the tank inside the car; I had replaced valves several times and which always started leaking after a year or so.

I have read that the new replacement, original type fuel shut off valves are actually ball valves.

https://www.snydersantiqueauto.com/p...9339&cat=41707

[TomInCologne]

Thanks for all the comments.

Sounds like i will install the solenoid under the hood. I don‘t like it but it seems to be the best of a few unpleasant options. I would prefer a more elegant (looking) solution.

[katy]

Don't park facing uphill.