Electric Fuel pump pressure

Discussion in 'Technical' started by Grabber71, Jul 28, 2007.

  1. Grabber71

    Grabber71 Milique Toast

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    I was just trying to adjust my pressure regulator which came with my Holley blue pump. Regardless of how far out I turn the adjustment screw outward the pressure keeps climbing! as soon as I turn on the pump it jumps to 7psi....then very slowly climbs over 10psi. Is this normal? Am I missing something? Carb dosn't seem to overflow...so not sure if it is something I need to worry about or not.....any advice?
     
    Grabber71, Jul 28, 2007
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  2. maverick1970

    maverick1970 MCG State Rep

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    Are you adjusting it with the engine running?
     
    maverick1970, Jul 28, 2007
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  3. 1slow7t

    1slow7t Member

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    Watch out for liquid filled gauges, if thats your case. They tend to increase the reading as the engine temp gets higher.
     
    1slow7t, Jul 28, 2007
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  4. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    Be sure to set it with the car running.Yes holley regulators like to climb and as 1low7t said liquid filled guages like to climb as they warm due to expansion of the liquid in the housing applying pressure to the mechanism of the guage.Hope this helps,good luck.
     
    Mavman72, Jul 28, 2007
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  5. MNTony

    MNTony aka Godzirra

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    Did your regulator sit for any length of time? You could have something jamming the ball in the regulator. Do you have any leaks in the regulator? They have a diaphram inside of them that could be ruptured.
     
    MNTony, Jul 28, 2007
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  6. baddad457

    baddad457 Member

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    Seems to me that the Holley regulator you turn the screw in to reduce pressure.
     
    baddad457, Jul 28, 2007
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  7. M.A.V.

    M.A.V. Yep,my real initials.

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    Yes , It is opposite from a float bowl adjustment.

    On a Holley regulstor You crack the Nut loose , then use the Screw to do the adjustment, then lock the nut back down.

    If you guys already knew this...Sorry. :D
     
    M.A.V., Jul 29, 2007
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