Anyone ever left the mechanical fuel pump on and bypassed it?

[440cj]

Just found out after hooking up the electric pump at the tank that the Carter mechanical hi-volume isn't letting more than 6 psi past it at any given moment, kind of like regulating it. But what I need to know is can you leave a mechanical fuel pump on the sb and just cap it off, then bypass it and just run the fuel line from the electric pump out back straight to the carb? Will that hurt the mechanical pump? Just want to experiment without the hassle of removing the mechanical pump. Yup, I'm lazy! 440cj

[rumblefish360]

LOL!, YES YOU CAN ! The story is the pump diaphram went south, or some crap like that I was told. I didnt care, it ran, it was free. He installed an electric pump where the 2 fuel lines meet by the pump.
All your pump will be doing is sucking air.
Don't cap it solid.

[volare360]

80 volare /6
fuel pump went south-in the middle of winter and you know where the pumps are on them
I just undid the 2 rubber lines-and inserted the pump
wired it up from the ballast resister
wasnt pretty-but it worked

[gsmopar]

You can leave it, or just buy the $10 Chrome piece that covers the hole. Oh, don't forget to pull out that little rod that moves the stock pump.

Later,

Greg

[rb77413]

Shut our 66 Barracuda off to fill up and then no more start. towed her home, did a few tests, grabbed an old electric I use for transferring gas around (dont ask) tie wrapped it to the fender 3-4 foot of rubber fuel line, drove up to the store bought a stock replacement and good as new. Just running the stock mech now. It was a 273.