in-line elec fuel pump not pushing through mechanical pump

[dbdevkc]

Originally Posted by Flathead Fever

I had a '66 Mini Cooper S with an external adjustable fuel regulator. This was 30-years ago but they look exactly the same today. Every once in a while, the regulator would just shut the fuel off. I have to get out, reset the regulator and then I'd be good for maybe a month, and it would happen again. So, I bought a new one and then anther different brand regulator, and it did exactly the same thing. I think they are designed more of a 5-6 lb. system, because at around 3 lb. they seem to have issues. No manufacturer uses an external fuel regulator. They design a pump with the correct pressure required by the carburetor. If you're just priming the system, then use a low-pressure electric pump that is open in the off position.

Well, what we have is the electric pump from shoebox central - it is 4.5 psi max, and a regulator just upstream from it. We'll stick with that until we see it not working.