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Thread: Rebuilt 300TDi oil pressure waiting...

  1. #1
    Join Date
    Sep 2015
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    In the shed or 1000km from home
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    Rebuilt 300TDi oil pressure waiting...

    Hey folks,

    I have a rebuilt 300tdi that i am cranking with the glow plugs out to get oil pressure before i connect up the fuel.
    I have cranked it for many bursts and still no oil pressure.
    Oil pump is new. All the bearing clearances were checked.
    Pickup o-ring and strainer all done.
    Any one had it take ages and ages to build oil pressure in a rebuild?
    Any tricks to get it pick up the oil?
    97 Disco 300Tdi, front & rear diff locked, hybrid turbo, full width intercooler, cranked front & rear arms,
    2” dobinson coils, terrafirma shocks, HD steering arms, diff guards, rocksliders, domin8r winch, tank guard

  2. #2
    Join Date
    Mar 2007
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    Canada
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    You won’t get pressure at cranking speed.

  3. #3
    Join Date
    Feb 2014
    Location
    Sydney
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    Bear in mind the pump has to fill the filter and all the galleries before pressure registers
    Will take a while (2-3minutes) at cranking speed
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  4. #4
    Join Date
    Sep 2015
    Location
    In the shed or 1000km from home
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    I ended up putting oil in a large syringe down the op oil cooler pipe, whilst cranking over the engine and that got oil pumping out the turbo feed line finally
    The engine runs sweet!
    97 Disco 300Tdi, front & rear diff locked, hybrid turbo, full width intercooler, cranked front & rear arms,
    2” dobinson coils, terrafirma shocks, HD steering arms, diff guards, rocksliders, domin8r winch, tank guard

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