Vapor Lock ???

BRENT in 10-uh-C said:
In my mind, we just did. A four-blade fan will impede airflow, and one of the main reasons why engine pans were installed originally was to direct airflow thru the engine compartment efficiently. Get the air flowing through the engine compartment efficiently and the carburetor will likely drop in temps. Try it Bob and see if it doesn't make a difference.
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If that were true then would not every car with a 4 bladed fan have that problem. We have read here on Fordbarn of cars that have the same symptoms that have the two bladed fan with engine pans. There just seems to be no real common denominator.

I think it may be the angle of the fuel line.
 
I spent a big chunk of money trying all these worthy suggestions and even hooked up a clear fuel line, watching the bubbles in frustration.
The one final solution that really worked was, a Napa low pressure fuel pump (I think it was 3 PSI), and an electric shut off valve between the fuel pump and carb with a hidden kill switch in the cab. The kill switch is hooked up to the pump and valve, adding safety and theft deterrent. good luck! Pepe
 
Tom Wesenberg said:
It's blowing. Sucking doesn't exist. Air pressure does the pushing of air through the radiator. There is more air pressure in front of the radiator than behind it because the fan pushed the air back.

You can't suck juice up a straw, but air pressure can push it up.:D
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piciepiciepicie....ok, is the low pressure in front of or behind the radiator?

Is that better. :roll eyes:

Bob
:cool:
 
Bob Johnson said:
No air filter at all. My problem is definitely fuel boiling in the carburetor. It is not the fuel line or the gas tank. As for wooden cloths pins on the gas line, IMHO that is akin to snake oil. Wood is a very poor conductor of heat. Aluminum cloths pins (if they exist) would dissipate heat. It happens to me several times a year mostly when I am running with winter gas in hot weather.

Bob
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I Had same problem, Driving the North Cascade highway a couple years past 100 deg temp stock eng all the way no over drive etc. 4000 plus ft elevation got to the top eng would not go. got out, the carb was boiling gas inside. So it does happen!! the fix stop for a break! Glad you made it back Bob!!:cool:
 
If ethanol in the gas is the problem a Carburetor heat shield will drop the temp.
This is what I use, a bent thin piece of aluminum.
Most problems occur at high altitudes or with winter bends of gasoline in the spring when the weather is warmer. Yes there is different blends of gas in the winter and summer.

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My second car was an E93A (UK) Ford popular 1172cc. That old girl had a similar issue. Petrol was evaporating in the fuel line due to its proximity to the exhaust manifold.
 
Mike V. Florida said:
If that were true then would not every car with a 4 bladed fan have that problem. We have read here on Fordbarn of cars that have the same symptoms that have the two bladed fan with engine pans. There just seems to be no real common denominator.

I think it may be the angle of the fuel line.
Click to expand...

There are SO many things that can factor in to this but in my experience the common denominator is the engine compartment temps, --with the exception of a poor ground where the fuel line became the fuel heater. In the case of David's shield, I think something like that can be just as detrimental when you consider how a Dutch Oven works. (David, it is great to see you here and I hope you are feeling better!). Maybe David's shield works specifically because it is directing airflow around the carburetor which is a better aid?
 
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