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Thread: 300 tdi lift pump bypass

  1. 24th May 2013, 09:13 AM #1
    Stacks
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    300 tdi lift pump bypass

    Hey guys, I went to start the disco last night no go so I removed the hose going to the filter cranked the motor and I had no fuel pumping so I guess the lift pump is shot.

    I tried gravity feeding the bosch unit and it fired up straight away, I want to install an electric pump so the question is whats the best way to bypass the lift pump.

    I've only had a quick look in the dark last night is the plastic hose okay to cut and sleeve over with rubber hose and clamp or should I remove the pipes from the pump and use barb fittings?

    I will be having a proper look this afternoon just enquiring so I can get parts on the way home.

    Cheers
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  2. 24th May 2013, 09:47 AM #2
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    steveG
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    Just cut the plastic hose and clamp rubber hose over the top.
    Definitely works fine on suction and return lines as thats what I have on my County.

    Haven't actually tried it on a pressure line, but I'd expect it to be OK as it will only be with low pressure (5psi ?). If that concerns you make the rubber hose a bit longer and put 2 hose clamps on it.

    Steve
    1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
    1988 120 with rust and potential
    1999 300tdi 130 single cab - "stock as bro"
    2003 D2a Td5 - the boss's daily drive
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  3. 26th May 2013, 10:27 AM #3
    Stacks
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    Cheers mate I folllowed your advice after work took about 40mins and she fired straight up, ive got a small leal from the seal on the fuel filter now most probably britpart quality seal related as its only a 4psi pump
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  4. 26th May 2013, 01:46 PM #4
    Blknight.aus's Avatar
    Blknight.aus
    Blknight.aus is offline RoverLord Vendor
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    dont forget to fit a loop hose to the mechanical fuel pump.
    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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  5. 26th May 2013, 04:55 PM #5
    Stacks
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    I just looped a rubber hose from both outlets on the old pump fully bypassing it. Or is it better to still go through the old pump?
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