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  1. #1
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    Default Lincoln Ranger 9 Onan Performer 18

    This is a very nice welder when it is running. It is not. My question is how much fuel should be coming from the fuel pump? The current amount is very small with little or no pressure. How does the low oil pressure switch work? After cranking I have power to the coil. Before cranking with no oil pressure I do not have electric to the coil. Any help would be great. Thoughts please.......
    Last edited by 2458n; 04-20-2012 at 09:11 PM. Reason: title correction

  2. #2
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    Default Re: Ranger 9 Onan Performer !8

    Unsure how the low oil works. My Ranger 8 has it too. If you find that you need a fuel pump, I have a new one for for 1/2 of new.

  3. #3
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    Default Re: Ranger 9 Onan Performer !8

    I am going to gravity feed it first thing tomorrow. I have a Bobcat and a kubota bucket both fixtured and ready to weld , but the normal ready to weld Lincoln will not fire. The Coil for the Onan is 200.00 dollars so there will be no wild parts swapping until I am certain of the problem. It just seems I am brain dead today.

  4. #4
    Veteran Member jake98's Avatar
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    Don't know about your welder, but my Mercruiser kills the fuel pump with the low oil pressure switch.
    Kioti CK 25 Hydro: box blade, brush hog, rake, roto-till, grapple, bucket forks, de-stump cyl, Wallenstein Chipper
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  5. #5
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    Thank you for your reply. This uses a suction powered fuel pump that is driven by the vacuum caused by the pistons up and down movement. There are three lines two of which are fuel coming to and leaving the fuel pump going to the carb. The third is the vacuum line. I have found a site that lists a manual; golftech.us/Manuals/onan-service.pdf I hope that I find a answer. Been told there are 5 different oil pressure shut down switches depending on which serial number is on the engine.
    Last edited by 2458n; 04-20-2012 at 11:47 PM.

  6. #6
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    Bad ignition module. Would discharge when turned off. Allowed it to fire once resulting in flame coming out the carb, or the muffler. 155.00 dollars later and runs like the Onan is supposed to.

  7. #7
    Veteran Member Hooked_on_HP's Avatar
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    On my Miller with a onan performer 16 I was having fuel delivery problems. The hose that provides the pulse to the fuel pump had a crack in it. And when I took the top of the carb off the fuel bowl had a lot of white jelly looking stuff in it. I can't figure how this stuff got by the filter.
    Bill

  8. #8
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    Quote Originally Posted by 2458n View Post
    Bad ignition module. Would discharge when turned off. Allowed it to fire once resulting in flame coming out the carb, or the muffler. 155.00 dollars later and runs like the Onan is supposed to.
    My ranger 8 ate 1 also, seems to be common with the Onan. CJ
    Kioti DK50HST Cab
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  9. #9
    Gold Member rcowan's Avatar
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    Quote Originally Posted by CJONE View Post
    My ranger 8 ate 1 also, seems to be common with the Onan. CJ
    Is that a common problem and does Lincoln/Onan take responsibility for the repair?

    RC
    The problem with Socialism is that you eventually run out of the other guys money.

  10. #10
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    Default Re: Lincoln Ranger 9 Onan Performer 18

    Quote Originally Posted by rcowan View Post
    Is that a common problem and does Lincoln/Onan take responsibility for the repair?

    RC
    My unit is waayyy out of warranty, it was like $29 at the small engine repair store and a minute to replace it. CJ
    Kioti DK50HST Cab
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