adding electric fuel pump

[Merc Cruzer]

Originally Posted by Bob from Northport

Merc Cruzer--- Is that 6 volt pump you mentioned a flow through pump???

Originally Posted by dbdevkc

Flow through meaning the mechanical will still be able to such fuel through the electric pump when it is off - not all electric pumps will do/allow that.

Yes it is. When I got it, the first thing I did was to test it by blowing through it and I was successful.

I learned that lesson the hard way, when I put my initial electric pump on the car.

[Flathead Fever]

When I was a mechanic Airtex offered a catalog with the specifications for each electric fuel pump, voltage, pressure and if it was "open" or "closed" when it was off. Most of them were closed in the off position so the fuel would not drain back into the tank when the power was cut off. If I remember right, there only about one pump that had low enough pressure for an early carb like a Stromberg and that was "open" so it could be used as a backup fuel pump for priming systems so the mechanical pump could still pull through it when it was off. You want to mount the electric pump near the fuel tank and mount a fuel filter before the pump, between the tank and the pump. If you're going to drive it a lot, you don't need the electric fuel pump to prime the engine but if it's going to sit awhile between trips it's probably a good idea to have one.

[Pete]

Originally Posted by dbdevkc

Seriously though, I am all for having redundancy - I have seen oil pressure safety switches - where would I find an inertia safety switch?

Napa or an OEM dealer or a wrecking yard.

[Bob from Northport]

Merc Cruzer- as always you are a fountain of information. Thanks!! Merry Christmas!!
Just ordered one

[Shoebox]

Originally Posted by Bob from Northport

Merc Cruzer- as always you are a fountain of information. Thanks!! Merry Christmas!!
Just ordered one

Bob, what specifically did you order and from whom? Thanks.

[Merc Cruzer]

Sponsored Links (Register now to hide all advertisements)

Shoebox,

Since the Airtex is not available any more (but if you can find one buy it), I would guess he ordered the same on I did:

https://www.amazon.com/AUTOKAY-Elect...e%2C118&sr=1-5

[Bob from Northport]

Shoebox- i ordered the one Merc Cruzer specified in his remarks. The Auto Kay 6 volt.
Click on the https he has in his remarks above. You'll find it. Merry Christmas!!!

[Ol' Ron]

Junk yards are full of them. Good idea Pete. our track didn't allow electric pumps.
G

[Pete]

Originally Posted by Ol' Ron

Junk yards are full of them. Good idea Pete. our track didn't allow electric pumps.
G

I don't think any tracks allowed them in the old days.
We always ran a stock pump pressurizng the tank. It would maintain 6 lb as long as the engine was turning over.
Worked good on the street also.

[RKS.PA]

Originally Posted by dbdevkc

"what if" what? ... The momentary switch gets stuck on? Or if the inertia switch fails?... LOL.
How would one test the current functionality of the inertia switch - how do I know it is actually going to work when I really need it?

Seriously though, I am all for having redundancy - I have seen oil pressure safety switches - where would I find an inertia safety switch?

I got a Painless Performance one on Amazon. A little pricey, but I figured it beat the alternative!! You can test the continuity prior to installation by shaking it. (I didn't have a wrecking yard option.)

[Pvmt-Pndr]

I went with one of the fuel pumps linked above, it didn't even run long enough to build pressure in my fuel system before it died.
When I bought my car it had a fuel pump just like this one https://www.amazon.com/Carter-P4259-...yABEgKjs_D_BwE after sitting in a rotting barn for years before I got ahold of it. When I put power to it the car it still worked, my own stupidity ended up killing it. I went with the original style that was on the car, put in a fuel pressure regulator and toggle switch. I haven't looked back since