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Old 05-02-2009, 09:13 PM   #1
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High Fuel Pressure
I have an Accel AFPR with the adjustment screw turned completely out yet my pressure is at 50psi with vac disconnected and 43psi connected. Any ideas as to why? I believe it should be at 36psi.
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Old 05-02-2009, 11:21 PM   #2
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Re: High Fuel Pressure
Probably a bad. or weak pressure spring in the regulator, or insufficient vacuum.
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Old 05-06-2009, 08:32 PM   #3
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Re: High Fuel Pressure
I beg to differ 7# is about right for the vacuum change, and the more you screw in the bolt the more spring and fuel pressure. The spring is too long/too strong with bolt backed out.

I would check that the bolt is fully retracting and then shorten the spring by an amount less then the extended bolt (all the way in).
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Old 05-07-2009, 11:08 PM   #4
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Re: High Fuel Pressure
Quote:
Originally Posted by pandin View Post
I beg to differ 7# is about right for the vacuum change, and the more you screw in the bolt the more spring and fuel pressure. The spring is too long/too strong with bolt backed out.

I would check that the bolt is fully retracting and then shorten the spring by an amount less then the extended bolt (all the way in).
Correct; excuse my dyslexia.
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Old 05-08-2009, 07:37 AM   #5
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Re: High Fuel Pressure
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Originally Posted by rgarcia63 View Post
Correct; excuse my dyslexia.
It will be my turn tomorrow.
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Old 05-08-2009, 07:37 AM
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