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  1. #1

    fuel pump regulator question

    Recently picked up a 06 GTX wake 155. It was dying after about an hour of running. Pulled the fuel pump assembly and it was a mess!
    I'll try to post a pic. I'm trying to find a good used replacement. Can
    I use one from a s/c ski? Or do they run a different regulator or pressure? Or maybe I could reuse my regulator with the new pump assembly

    <a href=http://s210.photobucket.com/albums/bb137/malibu81406/?action=view&current=IMAG0248.jpg target=_blank><img src=http://i210.photobucket.com/albums/bb137/malibu81406/IMAG0248.jpg border=0 alt=></a>


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  3. #3
    pass1's Avatar
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    Whats all that crap??

  4. #4
    I wish I knew lol. There is pieces of the filter all over the bottom of the tank. I can't believe this thing even ran! I think moisture or something caused it to corrode. It ran decent then died after about an hour.

  5. #5
    dnielsen's Avatar
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    Holy crap, the whole system is likely contaminated (fuel pump, regulator, injectors, lines and rail).

  6. #6
    Yeah I'll be pulling everything and making sure its clean. Anyone know if I could use the fuel pump assembly from a s/c ski? There is one I can get cheap. Don't know if the regulator runs at a higher pressure and if it does could it still work? I have the power filter. Maybe a little extra fuel would help?

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    dnielsen's Avatar
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    I'm almost certain they are different. The NAs run pressure between 42-45 psi vs the SCs at 56-60 psi. You might could get away with it if you had an external adjustable regulator with a gauge to monitor idle pressure. The Riva units are great for this application but are a bit pricy. I would also be cautious using those injectors as they might tend to stick a bit if contaminated. Good news is your NA and not SC so not as critical on leaning it out at WOT.

  8. #8
    dnielsen's Avatar
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    Quote Originally Posted by malibu81406 View Post
    Yeah I'll be pulling everything and making sure its clean. Anyone know if I could use the fuel pump assembly from a s/c ski? There is one I can get cheap. Don't know if the regulator runs at a higher pressure and if it does could it still work? I have the power filter. Maybe a little extra fuel would help?
    15 psi more pressure is huge, it would likely run like shit and fuel eco would suck!

  9. #9
    Doesn't sound like I should use one from a s/c ski. I'll keep looking for one from another 155. I got a great deal on this one or I would of got a s/c model. Maybe next year

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