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Reload this Page HSR Fuel pressure regulator leak...but not out of vacuum line?
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Old 06-16-2009, 04:20 AM   #1
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HSR Fuel pressure regulator leak...but not out of vacuum line?
I'm confused. I searched and everyone says it leaks out of where the vacuum line goes. I'm using the AFPR that comes with the HSR fuel rail kit. I primed the system, and its leaking from underneath the regulator. NOT from where the vacuum line attaches. That only leaves the O ring fitting in the fuel rail. It is tightened securely, and the O ring is not damaged. Is this still a sign of regulator failure? Every thread I search for, it leaks from where the vacuum line goes.
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Old 06-16-2009, 04:41 AM   #2
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Re: HSR Fuel pressure regulator leak...but not out of vacuum line?
strange, i use HSR and their fuelrail with AFPR for more than 6 months and no leaks anywhere
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Old 06-16-2009, 12:00 PM   #3
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Re: HSR Fuel pressure regulator leak...but not out of vacuum line?
I suppose it could be the fuel line to regulator connection, but it wouldnt suprise me a bit if the regulator body itself were leaking. I wouldnt go near a Holley regulator at this point. Kirban Performance used to (maybe still does) sell an affordable GN-style one that is definitely worth looking into.
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Old 06-17-2009, 01:35 AM   #4
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Re: HSR Fuel pressure regulator leak...but not out of vacuum line?
Well, I got more time to look at it today. I get it off, and see this. Hmm, that shouldn't be sticking out like that:



I give it a little tug:



I take it that's suppose to be a press fit. Well I hooked it back up, and that's where the leak is. Summit is sending a new one.
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Old 06-17-2009, 01:35 AM
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