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Thread: Air in fuel line got me stumped

  1. #1
    Join Date
    Aug 2018
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    Air in fuel line got me stumped

    My 300TDi is having issues where it will get fuel starvation on hard acceleration or going up a long hill.
    Setup is as follows
    • Running on blended veg oil
    • Facet style lift pump fitted near tank
    • clear fuel pre filter in engine bay


    So far I have
    • replaced fuel line from tank to sedimentor
    • bypassed sedimentor
    • changed pumps
    • changed filters

    As you can see there is a steady flow of air bubbles, the clear filter fills up much better now but still a steady stream of air coming into the system. Any ideas, got me stumped. Video at link below
    https://photos.app.goo.gl/vT4KHw7WkNSLYyxD9

  2. #2
    Join Date
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    Quote Originally Posted by Fattima View Post
    My 300TDi is having issues where it will get fuel starvation on hard acceleration or going up a long hill.
    Setup is as follows
    • Running on blended veg oil
    • Facet style lift pump fitted near tank
    • clear fuel pre filter in engine bay


    So far I have
    • replaced fuel line from tank to sedimentor
    • bypassed sedimentor
    • changed pumps
    • changed filters

    As you can see there is a steady flow of air bubbles, the clear filter fills up much better now but still a steady stream of air coming into the system. Any ideas, got me stumped. Video at link below
    https://photos.app.goo.gl/vT4KHw7WkNSLYyxD9
    For state of mind replace the line from sedimentor to the lift pump. I had fuel leaks every where and just bought 4 or 5 metres of fuel line.

    Cheers,
    Tom.
    1996 Disco 1 300TDI manual - Lucille a cantankerous red head! :D
    1997 Disco 1 300TDI Auto - sold

  3. #3
    Join Date
    Aug 2006
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    Melbourn(ish)
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    sealing goop on the suction side of the facet pump strainer has failed and its drawing air in through the threads.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


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  4. #4
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    Cheers guys, will check it out.

  5. #5
    Join Date
    Aug 2018
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    Turns out it was a dodgy fuel pump (Mr Gasket facet style). I've had a terrible run with the Facet style pumps with veg oil so lashed out on a Walbro pump that is used by a lot of veg oil users. Going well so far.

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