RotaryRyan

I accidentally hooked up my regulator backwards(outlet on inlet hose and inlet on outlet hose). Now it seems that it wont regulate. It just stays at like 9psi no matter how much i turn the regulator screw. I have a manual pump switch so i can have the fuel pump on without the car on. Its a holley 1-4 psi regulator so i dont think it should be up at 9psi

Could running backwards like that mess it up?

lovintha7

Uh, definitely.

RotaryRyan

Well that sucks. is there any way to fix it? What does it mess up?

lovintha7

Shouldn't mess up anything, just reverse the lines so that it goes through the regulator the right way.

RotaryRyan

Ok i thought you just said it would mess it up??????. Nevermind. I put it back on the right way and it does what i said above.

RotaryRyan

Anybody know why its not working?(bump)

EDIT: I now realize that I made it sound like it was still hooked up backwards, but i have it hooked up the RIGHT way now and it does whats said above.

cdrad51

Put it backwards again. That should do it.









































j/k. Don't know what to tell ya, except I'm about to get that exact same FPR and so will have to remember to double check and make sure I don't make the same mistake. Good luck getting it fixed.

Tom

Maybe reversing the flow could have damaged the internal diaphragm. I have recently taken apart a Malpassi regulator and the diaphragm in there was really thin..I would guess the same with a Holley. If the membrane is ruptured or otherwise non-functional it would no longer regulate.

If it were me, I would order the Holley rebuild kit for the regulator BEFORE you tear it apart. Call 1-866-GOHOLLEY for tech assistance.

CarlRx7

did it ever work? if not then try puting the return line coming out of the fpr into a 5 gallon gas container and see if the pressure drops. if so you got a clog in the return line or too small of line.

Carl.

RotaryRyan

Okay guys i got it working. just let it sit over night.

thanks for the help.