Fuel leak

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Mar 12, 2014 | 06:13 PM

DanielRicany

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Melting Slicks

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Fuel leak

Hey guys, I am getting ready to fire up my engine that I just put AFR 195 heads on.

I did a fuel pressure test on it to find some leaks, I found a lot, mostly all O - Rings.

Now when I test it the pressure drops down and settles at around 50 ish, but I don't see any fuel leaking anywhere and I can't hear anything purging out. The pressure goes to 75 while the pump is priming then kicks down to like 60 and drops to 50 in about 15 seconds.

Any ideas? I have to still adjust my FPR but after I clear up all the leaks.

Thanks!

Mar 12, 2014 | 06:25 PM

floridamale

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From: Vero Beach Florida

You should list the year of your car, 75 lbs is way to much, should be low 40's at prime

Last edited by floridamale; Mar 12, 2014 at 06:28 PM.

Mar 12, 2014 | 06:27 PM

DanielRicany

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Quote:

Originally Posted by floridamale

You should list the year of your car, 75 lbs is way to much, should be low 40's. Adjust the FPR.

It's a 1985 Corvette. I am supposed to be at 60 PSI, because that is what my tuner is going to tune off of.

Mar 12, 2014 | 06:38 PM

DanielRicany

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Never mind. I set the pressure to 60 and it stopped leaking down.

Mar 12, 2014 | 07:25 PM

MrWillys

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From: Reno Nevada

Quote:

Originally Posted by DanielRicany

Never mind. I set the pressure to 60 and it stopped leaking down.

Did you change the fuel pump? The stock pump is only good to about 50 psi at WOT. While it may go to 60 with no load it won't be able to maintain it when hard on it.

Mar 12, 2014 | 08:01 PM

DanielRicany

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Quote:

Originally Posted by MrWillys

Did you change the fuel pump? The stock pump is only good to about 50 psi at WOT. While it may go to 60 with no load it won't be able to maintain it when hard on it.

It Was Replaced With OEM Equivalent About 6 Months Ago.