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Post by clyffcarlock on Mar 20, 2013 2:26:48 GMT -5
Can a malfunctioning vacuum petcock keep fuel from supplying the carburetor? Or can a malfunctioning petcock only flood a carburetor? Or can a malfunctioning vacuum petcock do both... flood or starve a carburetor? I do not seem to be getting fuel supply to the carburetor. The fuel filter is clean so i can only assume the next step in line to the carburetor is the vacuum petcock. How hard would it be to change out the vacuum petcock to a manual petcock. Thank you.
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Post by gatekeeper on Mar 20, 2013 3:24:20 GMT -5
It can do both. Have you tested it to see if it is working correctly?
If there is gas in the fuel filter then take the fuel line off of the carburetor and put the end in a container. Then take the vacuum line that goes to the petcock loose from the intake manifold. lightly suck on the end of the vacuum line to create negative pressure. If the petcock is working properly fuel will freely flow into the container you put the end of the fuel line in while negative pressure is applied.
You can replace the vacuum petcock with a manual one but I prefer the simplicity of the vacuum one. You don't have to remember to turn it off and on and they are cheap to replace if they malfunction.
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Post by alleyoop on Mar 20, 2013 15:41:55 GMT -5
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..BAD TO THE BONE..