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  1. #1

    Default priming fuel system

    I am having a problem with my 2610. It is the same set up as all the other Yanmar's. I ran it out of fuel and decided to go ahead and change the filter. I primed it (three set screws) and it started right up. Now it will run for a few minutes then loose all power, sputter and die. I will rebleed it and find air in the set screw by the injector. It will imediately start back up after bleeding it. It may run for 30sec or may run for 10 min. before sputtering and quitting. Then I have to repeat the whole bleed process again. If someone could help I sure would appreciate it. I am at my wits end. thanks.

  2. #2
    Platinum Member
    Join Date
    Jul 2003
    Posts
    614
    Location
    Thorsby Alabama

    Default Re: priming fuel system

    Quote Originally Posted by adammsmith View Post
    I am having a problem with my 2610. It is the same set up as all the other Yanmar's. I ran it out of fuel and decided to go ahead and change the filter. I primed it (three set screws) and it started right up. Now it will run for a few minutes then loose all power, sputter and die. I will rebleed it and find air in the set screw by the injector. It will imediately start back up after bleeding it. It may run for 30sec or may run for 10 min. before sputtering and quitting. Then I have to repeat the whole bleed process again. If someone could help I sure would appreciate it. I am at my wits end. thanks.
    Did you replace the old O-ring? Sometimes the old one is hard to seal and it will suck air.

    Danny

  3. #3

    Default Re: priming fuel system

    thanks Danny1, I'll give that a try.

  4. #4
    Gold Member dieselfuelonly's Avatar
    Join Date
    Aug 2007
    Posts
    299
    Location
    Chapel Hill, North Carolina
    Tractor
    Yanmar YM1401D

    Default Re: priming fuel system

    It may be worth trying bleeding out at the injectors by cracking the injector lines and turning the engine over.

    YouTube - HOWTO: Bleeding air out of a small Yanmar diesel

    There is a video of the process I went through. Watch the whole video though, I was learning as I went so I made some mistakes such as cracking 1 line at a time, instead of just doing all three at once.
    Hi my name is Dennis.
    Yanmar YM1401D, 12k 16+2ft trailer, 1996 Dodge 3500 2WD Cummins 5spd, 1973 M35A2 "Deuce and a Half"




  5. #5
    Super Member California's Avatar
    Join Date
    Jan 2004
    Posts
    5,621
    Location
    Sonoma County
    Tractor
    Yanmar YM240, YM186D, and another YM186D

    Default Re: priming fuel system

    I've never had to crack an injector line to bleed the fuel system. Just the three bleeder screws, in order, from the filter inlet working toward the pump.

    I just did that this past weekend after purging the system. It has worked fine several previous times also.

    An old timer once posted here that this is all you ever need to do. Works for me!

  6. #6
    Platinum Member Gizmo36's Avatar
    Join Date
    Nov 2005
    Posts
    700
    Location
    East of Duewest S.C.

    Default Re: priming fuel system

    The only place air will hurt is before it gets to the pump. if you get fuel to the pump with out air the pump will push it to the injector.It may have white smoke for a little while but it will run.

  7. #7
    careyo63
    Guest

    Default Re: priming fuel system

    If it was leaking before the pump I would tend to believe that it would be wet in the area of the leak after sitting.

  8. #8
    Elite Member
    Join Date
    Jul 2007
    Posts
    3,244

    Default Re: priming fuel system

    Try not to be discouraged. I think it takes practice to get a feel for it.

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