[malibuchevyz]

Can Intank Fuel Pump Run While Connected To The Manuel engine driven Fuel pump ???

 

[JJLT1]

:dontknow:
if you run a carb youll probly have too much fuel pressure the tbi pump puts out 10-15 psi,,
it will probly push fuel right thru the mechanical pump..

if thats what your asking??:texas:

 

[malibuchevyz]

So if the eletric fuel pump pushes fuel through manual fuel pump is this good or bad????

 

[jarhead]

Pretty basic stuff here.. use either / or but not both. But then again, you are racking up the posts.

 

[rtatwk]

Indeed CJ. Ask all the questions you want but please try to place them in the forum that fits...like exterior for windshield....And please stay on the same thread instead of starting like 3 on a windshield replacement.

As you have noticed, members here are willing and anxious to help.

:beer: to ya!

 

[jlcustomz]

Best answer for you here, if you want to use the in tank pump for a carb ,you will need a regulator.Also be sure it's a good enough quality unit.

 

[Bobby78]

Didn't someone here just post recently about a regulator spewing gas all over the engine compartment?
I would say use the mechanical pump.

 

[malibuchevyz]

86 elcamino with intank electric fuel pump with 3/8" main & 1/4" return lines I have Purchases Holley 12-803 Fuel Pressure Reglator How Do I connect this Up????

 

[Bobby78]

It should splice into the fuel line before the carb. Then adjust the pressure down to 6-7 psi. Not sure what the psi should be for your set up but I'm sure someone here will know.
Do you need to remove the other pump and make a block off plate?

 

[malibuchevyz]

Yes Once intank pump set up is correct i will remove the manual fuel pump...

 

[Bobby78]

Wouldn't you rather use the mechanical pump? So much easier to change if the need arises.

 

[malibuchevyz]

yes but plan on adding newer none mechanic fuel pump style Engine block

 

[Bobby78]

Ahh! OK cool!

 

[malibuchevyz]

BOBBY 78 I am going mechanical fuel pump and have connected it up. But i need to disable the intank fuel pump without removing it .

 

[caveman85635]

BOBBY 78 I am going mechanical fuel pump and have connected it up. But i need to disable the intank fuel pump without removing it .

I know this is an old thread, but I'm trying to figure if I have to do the same thing. 396 w/mechanical fuel pump and electric in tank pump. What do I replace the tank pump with?

 

[JJLT1]

you can replace the intank pump with a piece of 3/8" steel or copper tubing with a piece of hose and clamps to connect it like the pump,,
put a clamp around the tube at the bottom to hold it in place.. put a 90 degree bend at the bottom..
youll want a strainer of some kind at the bottom I built some from fine brass or stainless screen..
make sure you use hose rated for submersion in gas..
you could probably find someone swapping to efi to trade with you,, the intank senders are hard to find now days..

or keep the intank pump and add a regulator at the carb,, then you wont need the mechanical pump,, may be easyer..

 

[caveman85635]

you can replace the intank pump with a piece of 3/8" steel or copper tubing with a piece of hose and clamps to connect it like the pump,,
put a clamp around the tube at the bottom to hold it in place.. put a 90 degree bend at the bottom..
youll want a strainer of some kind at the bottom I built some from fine brass or stainless screen..
make sure you use hose rated for submersion in gas..
you could probably find someone swapping to efi to trade with you,, the intank senders are hard to find now days..

http://ts3.mm.bing.net/th?id=H.5004123266155482&pid=1.7&w=222&h=172&c=7&rs=1 or keep the intank pump and add a regulator at the carb,, then you wont need the mechanical pump,, may be easyer..

Thanks for the info, JJ!