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Thread: MDJF Onan 15 kw

  1. #1

    MDJF Onan 15 kw

    Looking for onan part# 149-1046. Rebuild kit for my weeping fuel pump. Cant find one. Any ideas?

  2. #2

    Re: MDJF Onan 15 kw

    Use an electric fuel pump and bypass that mechanical one.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  3. #3

    Re: MDJF Onan 15 kw

    Agree with replace w/electric pump but there is this from 2018 .. https://www.samsmarine.com/forums/sh...highlight=Onan
    Top Hatt ‘78 43’ DCFB #471 6-71Ns Oakley CA

  4. #4

    Re: MDJF Onan 15 kw

    Sorry to say the pump is gone. But honestly the reason I had it was because I converted to electric and never looked back. It’s an easy swap. Unbolt the mechanical pump and use a block off plate from a small block Chevy. $15 at auto parts store. Electric diesel fuel pump was $59 I think. Ground to engine block. Positive to single lug on fuel solenoid. Done.
    PHOENIX1983 60C Enclosed Bridge Hull #365Newport Beach CA

  5. #5

    Re: MDJF Onan 15 kw

    Thanks. Any idea what kind d of pressure the electric pump needs to make?

  6. #6

    Re: MDJF Onan 15 kw

    This is the pump I used. Not a high pressure pump at all, but I believe it only needs to maintain supply to the injection pump and then that takes over. If I'm mistaken I'm sorry, but I can tell you this exact pump worked great on my MDJF and Jeg's is selling it for half of what I paid. At $28, it's not much of a gamble.

    https://www.jegs.com/i/Autobest/035/12D/10002/-1
    PHOENIX1983 60C Enclosed Bridge Hull #365Newport Beach CA

  7. #7

    Re: MDJF Onan 15 kw

    Quote Originally Posted by oceanjake View Post
    This is the pump I used. Not a high pressure pump at all, but I believe it only needs to maintain supply to the injection pump and then that takes over. If I'm mistaken I'm sorry, but I can tell you this exact pump worked great on my MDJF and Jeg's is selling it for half of what I paid. At $28, it's not much of a gamble.

    https://www.jegs.com/i/Autobest/035/12D/10002/-1

    I used the same one on my 17.5kw Powertech in my motorhome. Works great.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

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