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athenssprite
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I ordered a Facet fuel pump. It looks like they sent one for the negative ground instead of positive. Anyone have the stock # for the one that will work with a positive ground? thanks in advance.
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Facet fuel pump - for use on 1960 BE
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athenssprite
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Just noticed in another post someone says to switch the wires and it still works. Good idea?
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athenssprite
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aeronca65t
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Hope it all works out for you (I have no experience with pos ground fuel pumps).
But just a reminder: even the smallest Facet pump makes a bit too much pressure for carbs on our cars, so be sure you have a presssure regulator. My race car (with a Facet pump) has a regulator that is set down about 1.5 to 2 lbs of pressure.
Also, when you mount that pump, it is best to have a rubber-type mount to dampen the noise. They are very noisy. Even with a helmet on, I can hear mine.
Finally, my Facet pump has been very reliable and trouble-free.
But just a reminder: even the smallest Facet pump makes a bit too much pressure for carbs on our cars, so be sure you have a presssure regulator. My race car (with a Facet pump) has a regulator that is set down about 1.5 to 2 lbs of pressure.
Also, when you mount that pump, it is best to have a rubber-type mount to dampen the noise. They are very noisy. Even with a helmet on, I can hear mine.
Finally, my Facet pump has been very reliable and trouble-free.
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athenssprite
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I hooked up the low-pressure Facet pump as described in the above thread and it is working! After reading aeronca65t's note to use a pressure regulator, I'm hesitant to hook it up directly to the H2 carbs. My next question is which pressure regulator should I use? Also, a picture of this type set-up would be helpful if someone can post one.
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Combination vacuum/fuel pressure gages are available cheap at almost all auto parts stores. Temporarily connect it in place of the carbs with a slip on hose & remove all doubt about how much pressure you have.
Facet has a number of different styles & pressures.
My spare LP Facet "cube" puts out 2.5 psi. It can be either polarity, just connect red to positive & black to negative. It doesn't have an internal ground. It was supplied by JCW for use on an old VW Beetle. SU carbs should handle 2.5 psi.
D
Facet has a number of different styles & pressures.
My spare LP Facet "cube" puts out 2.5 psi. It can be either polarity, just connect red to positive & black to negative. It doesn't have an internal ground. It was supplied by JCW for use on an old VW Beetle. SU carbs should handle 2.5 psi.
D
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Plenty of info on the Facet pumps here and also some useful info here.
Unfortunately, it doesn't say anything about positive or negative ground. I've always assumed that the electronics were isolated from ground--that's why they have two leads coming out of the sucker. After all, there are no separate listings for positive or negative ground in any of their on-line literature. In any case, you can check this with an ohmmeter; if one lead is grounded, you can see it as virtually zero resistance between that lead and the body.
As for pressure, I got the lowest pressure or second-lowest pressure one (I forget), and its pressure turned out to be 3.5 psi. This is exactly the same as the stock mechanical fuel pump, so I assumed it would be fine. So far, it has been.
Unfortunately, it doesn't say anything about positive or negative ground. I've always assumed that the electronics were isolated from ground--that's why they have two leads coming out of the sucker. After all, there are no separate listings for positive or negative ground in any of their on-line literature. In any case, you can check this with an ohmmeter; if one lead is grounded, you can see it as virtually zero resistance between that lead and the body.
As for pressure, I got the lowest pressure or second-lowest pressure one (I forget), and its pressure turned out to be 3.5 psi. This is exactly the same as the stock mechanical fuel pump, so I assumed it would be fine. So far, it has been.
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athenssprite
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You are correct, it is working without the fuel pressure regulator and is putting out 2.5 psi. I am thrilled that she started and idled nicely today! First time in over 15 years!
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It might be just my expectations, but I thought that the car idled a good bit more smoothly after installing the electric pump. I have a hard time seeing why this might happen, so maybe it's just the "clean engines run better" effect. But at least, it seems to work quite well in my bugeye. And I suspect it will be quite a bit more reliable than a mechanical pump, and much less prone to vapor locking.
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athenssprite
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Thanks Steve! I saw your website and decided to follow your suggestion on giving the Facet pump a shot. Glad I did!
) you will see fuel leaking/puddling in the throats at the jets!