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03-28-2024, 12:54 PM | #1 |
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Problem starting car after sitting idle for 2 days
1933 Model B.
Has anyone had this problem? It is as though all the gas into the fuel line has drained back into the fuel tank. I can start after pouring some gas in the carburetor several times, and pumping the accelerator. Is air leaking into the fuel line? |
03-28-2024, 03:06 PM | #2 |
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Re: Problem starting car after sitting idle for 2 days
It shouldn't have to run very long after priming it until it should supply its own gas.
Yes Frank, I would check for cracks or loose fittings. Got a rubber line before the fuel pump on your B motor? |
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03-29-2024, 07:27 AM | #3 |
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Re: Problem starting car after sitting idle for 2 days
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03-28-2024, 04:07 PM | #4 |
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Re: Problem starting car after sitting idle for 2 days
Fuel will evaporate slowly from the float bowl, but it should hold enough to start for longer than two days. Maybe tighten up the assembly and bowl drain screws on the carb. Also on the fuel pump and lines.
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03-28-2024, 04:17 PM | #5 |
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Re: Problem starting car after sitting idle for 2 days
install an elect. fuel pump when the car sits turn the pump on. car starts shut pump off its the new gas that is the problem
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03-28-2024, 04:28 PM | #6 |
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Re: Problem starting car after sitting idle for 2 days
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03-28-2024, 06:01 PM | #7 |
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Re: Problem starting car after sitting idle for 2 days
Its a 4 cylinder
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03-28-2024, 08:16 PM | #8 |
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Re: Problem starting car after sitting idle for 2 days
Check the drain plug under the float? There should be check valves in the pump. ? Newc
Last edited by Newc; 03-28-2024 at 09:35 PM. |
03-28-2024, 08:58 PM | #9 |
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Re: Problem starting car after sitting idle for 2 days
Electric pumps only mask the problem, in my opinion.
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Tim Carlig |
03-30-2024, 02:58 PM | #10 |
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Re: Problem starting car after sitting idle for 2 days
You are correct.
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03-29-2024, 07:52 AM | #11 |
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Re: Problem starting car after sitting idle for 2 days
It is possible the upper gasket on the fuel pump cover is leaking air. The gasket may be made of cork that drys out and shrinks allowing air to enter the pump. When the engine is started the fuel causes the gasket to swell blocking air. This will cause excessive long start times after a couple of days.
The fuel pump has two valves inside and when the engine stops both should close preventing fuel to flow back to the tank. Any fuel line leaks anywhere, including the flex line into the fuel pump and the carburetor? Any smell of fuel vapor? |
03-29-2024, 12:48 PM | #12 |
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Re: Problem starting car after sitting idle for 2 days
Agree with others who have said problem is no fuel in the carb float bowl, which should not happen after two days. Picture that scenario and re-read the original post’s symptoms. Not a fuel delivery problem.
Others smarter than me have suggested things to look for at the carburetor. Last edited by JayChicago; 03-29-2024 at 12:54 PM. |
03-30-2024, 04:08 AM | #13 |
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Re: Problem starting car after sitting idle for 2 days
wiper vacuum line?
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03-30-2024, 12:52 PM | #14 |
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Re: Problem starting car after sitting idle for 2 days
WOW, are you psychic. AS I was trying to start the car The windshield wiper began working? Weird.
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03-31-2024, 06:57 AM | #15 |
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Re: Problem starting car after sitting idle for 2 days
After tightening the connections on the fuel pump and carb., not that any were excessively loose. .it seems better. For a 1933 car, I guess I should start the engine every 2 days. The weather has been very cold. Some Global warming Scam.
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03-31-2024, 10:34 AM | #16 |
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Re: Problem starting car after sitting idle for 2 days
I've had a fairly new, like 3 years old rubber line to the fuel pump crack. It did not leak fuel as there is no pressure there, but would leak enough air to make it hard to start after sitting for long periods. Same symptoms as the bad gasket at the glass sediment bowl as mentioned above. I like the rubber bowl gaskets if you can find them.
There is a special grease used in the aviation world that will not wash off with gasoline, so its good for the cork gaskets on the glass bowl. Sorry, I do not know the product name, only that its very expensive and my buddy who was an A&P would give me a little dab for my cars. |
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