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In this Discussion
- Jon B July 2011
VAPOR LOCK..NOT SO FAST
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Sometimes Less is better... I described the problem I was having and got LOTS AND LOTS of input...Obviously I considered all the options and based on what I read I thought that I had had figured out from the input that I was experiencing an strange case of VAPOR LOCK that just came out of the blue.
I was all set to install an electrical fuel pump and just figured that for whatever reason VAPOR LOCK was the problem and I would live with it..
Don't know why but I decided for some reason today to pull the fuel pump and put back on the old one that I had sitting around for years.
Wellllllllllll.. LOOKS like that solved the problem..no loss of fuel pressure, no VAPOR LOCK and so far it's back to running like it had in the past.
Sometimes we we create bigger problems when the issue is minor and was probably the very FIRST thing that we should have done.
Thanks for all the assistance..
TOM -
Years ago I installed an electric fuel pump on my Hudson to rid myself of the occasional bout of vapor lock. Later, I got some good pointers from others on how to make the engine inherently vapor lock proof. For example, putting 8 spacers beneath the carburetor, with one of those metal heat deflectors between #4 and 5 spacers. And wrapping the fuel lines and exhaust pipes with insulating material (made of asbestos, in the old days).
After I installed all the precautions I decided to live dangerously, and see if I could successfully go back to a mechanical fuel pump.
After I'd done so, I never had vapor lock problems again. The only downside with a mechanical fuel pump is that, after the car sits for a few weeks, it might take me maybe 10 seconds of cranking to pump the gas up into the carb. But this is really no biggie for me.
Like converting to 8 or 12 volts, installing an electric fuel pump is a band-aid, a rather involved way around a problem that is better cured at its source. When everything is as it should be, with the engine and electrical system, the car will function well, as it did when new.
