im pretty sure i know the answer but wanted to check any way.
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im pretty sure i know the answer but wanted to check any way.

  1. #1
    Senior Member Delemorte's Avatar
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    Default im pretty sure i know the answer but wanted to check any way.

    Saw last week my enigine runing at zero PSI fuel pressure. I swapped out the fuel lines and removed the pressure regulator and swapped PSI gauge. When i sit there and crank the motor the PSI bounces to about three but then just goes back to zero once i stop cranking it..

    My fuel pump just went Tango Uniform didnt it? Any suggestions on manual vs electric? jegs has a manual holley marine one for 110. Any suggestions on a eletric one?

    http://www.jegs.com/p/Holley/751733/10002/-1

    Friggin boat is nickle and diming me...


    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Cas
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    Angry American Cas's Avatar
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    Quote Originally Posted by Delemorte View Post
    Saw last week my enigine runing at zero PSI fuel pressure. I swapped out the fuel lines and removed the pressure regulator and swapped PSI gauge. When i sit there and crank the motor the PSI bounces to about three but then just goes back to zero once i stop cranking it..
    So long as the pump is pumping, the lines will have pressure. Once it stops pumping, the pressure will bleed off, nothing unusual there.
    As far as elec or mechanical, I personally like mechanicals as I've seen many electric fuel pumps fail in 1 way or another over the years. Again, that's just my personal preference as I'm sure many out there have used electricals for years without issues.

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    Resident Ford Nut Sleeper CP's Avatar
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    Condition of the filter ?

    S CP

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    fast is the other half.
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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by Sleeper CP View Post
    Condition of the filter ?

    S CP

    Fuel lines and filters are brand new. One tank of gas thru them since replaced this winter.


    Yea it does surge but it only surges to 3 PSi with no restricter on it... If i keep turing the engine for 15 seconds it stops pushing to 3 and sits at zero. Its not like it bleeds off the pressure once its built it jsut friggin dies. . Before i had a regulator she was pushing 19 PSI.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Get a Clay smith fuel pump. They are one of the best mechanical pumps there is. I have ran them for years trouble free.

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    Mechanical..............

  9. #7
    "That Guy" floatn turd's Avatar
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    don't do the mechanical, I bought one of those "trick" race pumps, and its a pain in the ass. wish i just bought a good ol' electric.
    PM me if you want more detail. but everyone has an opinion.

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    Senior Member bajadad's Avatar
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    Electric here, Holley Red with a oil pressure drop fuel shut off from Jegs.

    Part #555-11200 5 psi oil pressure switch $21.99

    Piece of mind.

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    Senior Member Fonz69's Avatar
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    Does the motor run?

    Does it run at WOT or fall off?

    What type of guage is it? (electric or Mechanical)

    Regulator adjusted correct?

    You said filters are OK so thats off the list,

    Just the basics first

  12. #10
    Senior Member Fonz69's Avatar
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    Quote Originally Posted by bajadad View Post
    Electric here, Holley Red with a oil pressure drop fuel shut off from Jegs.

    Part #555-11200 5 psi oil pressure switch $21.99

    Piece of mind.


    Piece of mind??

    You really want your motor to kill when your doing 70-80mph?

    I get the idea about low psi and hurting a motor but a warning light would make more sense maybe?

  13. #11
    Senior Member Brendellajet's Avatar
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    Quote Originally Posted by floatn turd View Post
    don't do the mechanical, I bought one of those "trick" race pumps, and its a pain in the ass. wish i just bought a good ol' electric.
    PM me if you want more detail. but everyone has an opinion.
    if you have one of those single piston race deals-no comparison between that and a standard pump. A good Holley/edelbrock/summit/jegs mechanical will do you well.

    I run a Clay Smith and it made as much power as the aeromotive electric that was running on the dyno. Sold me. Plus, if you are running a Holley red in a boat, you are begging to be stranded with no fuel pressure IMO.
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

  14. #12
    Senior Member Brendellajet's Avatar
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    Quote Originally Posted by Fonz69 View Post
    Piece of mind??

    You really want your motor to kill when your doing 70-80mph?

    I get the idea about low psi and hurting a motor but a warning light would make more sense maybe?
    Ditto that-especially in a jet. Watch your gauges like a hawk or install an idiot light somewhere real visible. High speed shutdown = recipe for a disaster.
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

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    Senior Member bajadad's Avatar
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    Quote Originally Posted by Fonz69 View Post
    Piece of mind??

    You really want your motor to kill when your doing 70-80mph?

    I get the idea about low psi and hurting a motor but a warning light would make more sense maybe?
    You made a good point, didn't think of that....thanks

  16. #14
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by Fonz69 View Post
    Piece of mind??

    You really want your motor to kill when your doing 70-80mph?

    I get the idea about low psi and hurting a motor but a warning light would make more sense maybe?
    not to mention that by the time the carb actually runs outta fuel in the bowls, more than likely the damage is already done to the motor

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

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