help on fuel pressure please

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Nov 18, 2016 | 10:41 AM

#21

matthewsorrells

Thread Starter

Intermediate

Joined: Oct 2016

Posts: 44

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From: Canton North Carolina

maybe i could remove it, clean it, and braise in another?

Nov 18, 2016 | 01:39 PM

#22

bjankuski

Safety Car

Joined: Sep 2001

Posts: 4,157

Likes: 554

From: Glenbeulah Wi

Quote:

Originally Posted by matthewsorrells

There is NO return on the fuel tank, guys! What do I do at that point?

OBVIOUSLY i would do that if i could, but there is no return on the tank!
Should i put a small hole in filler hose and run the return in there?

You need to add one to the tank, whatever it takes if you want this to work correctly.

Nov 18, 2016 | 02:01 PM

#23

antfarmer2

Race Director

Joined: Mar 2015

Posts: 15,926

Likes: 579

You very well could have blown your FPR and filled your oil with fuel.

Nov 18, 2016 | 02:11 PM

#24

ddahlgren

Melting Slicks

Joined: Dec 2008

Posts: 2,772

Likes: 64

From: Mystic CT

There must be an access panel to chage the fuel level sender. Pull it off get it clean and dry of fuel and weld a return fitting there.

Nov 18, 2016 | 04:32 PM

#25

matthewsorrells

Thread Starter

Intermediate

Joined: Oct 2016

Posts: 44

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From: Canton North Carolina

ive got it out and waiting till i can get a return in it. there is no fuel coming out of the diaphram in the FPR, but he oil does smell a bit of fuel. It is still very viscous though. I did install a fuel pressure gauge on the input side...... wait for it..... 120+ PSI!

wow, huh? fun fun fun. Good fuel pump I reckon. Guess that means my fuel lines will hold fuel no matter what now since they held 120 psi.

So, im going to install a return into the tank access panel and do you think I should put a FPR inline in addition to the factory one (I have an extra one) in case I've blown it out, or just plumb the way it should be with a return and then check fuel pressure again to see? I think if I have blown the FPR out it should be ok to put one inline before it after the fuel pump to get it to 43.5.

Now i need to figure out after i fix that if I need a MAF or not.

Last edited by matthewsorrells; Nov 18, 2016 at 04:33 PM.

Nov 18, 2016 | 04:35 PM

#26

ddahlgren

Melting Slicks

Joined: Dec 2008

Posts: 2,772

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From: Mystic CT

Do it as stock.

Nov 18, 2016 | 06:55 PM

#27

Hot Rod Roy

Safety Car

Joined: Sep 2004

Posts: 3,953

Likes: 550

From: Mission Viejo CA

Quote:

Originally Posted by matthewsorrells

I did install a fuel pressure gauge on the input side...... wait for it..... 120+ PSI!

So, I'm going to install a return into the tank access panel and do you think I should put a FPR inline in addition to the factory one (I have an extra one) in case I've blown it out, or just plumb the way it should be

You just discovered why you are running so rich! Since you didn't have a good return line, your FPR wasn't doing anything. You've got to have a good fuel return line for the regulator to route the extra fuel back to the tank!

Don't get creative on this. Do it like the diagram, with an added fuel filter between the tank and the fuel pump, as was recommended! (We are assuming you have an external mounting of your fuel pump. Is that correct?)

Since you are asking about installing a second FPR, that tells me that you still don't understand how the system is supposed to work!! Go back and read the information in that link I gave you.