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Nissan z24 engine d21 n o oil pressure I forgot to mention I have mention this before but haven't got an answer as yet

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If you have not had a pressure test done using a mechanical gauge , get that done as it may just be a bad sender unit or gauge

Posted on Apr 25, 2017

Testimonial: "I will do that but no oil in new filter a worry ?"

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  • Bill Boyd Apr 25, 2017

    big worry
    remove the sump and check the oil pump pickup line
    oil filters fill within seconds of starting an engine
    what work was done prior to the loss of oil pressure

  • Margaret Liddy
    Margaret Liddy Apr 26, 2017

    Timing chain wore a hole at back of water pump housing radiator went into sump replaced timing gear guides tensioner head gasket etc cleaned sump and oil pick up reassembled I did pull oil pump apart to clean engine started first go but no oil in the new filter

  • Bill Boyd Apr 26, 2017

    well the problem of no oil in the filter is explained
    you have cleaned the oil pump and thereby the pump is not primed
    they will not pick up oil unless the clearances in the pump are sealed off
    You do that by filling the spaces with clean grease or vaseline on assembling the pump
    as the pump works by moving the oil around the outside between the gear teeth by filling up those spaces when that grease is squeezed out where the gears mesh a vacuum is created which sucks up the oil and the system starts to work
    grease/ vaseline is petroleum based and will move through the oil galleys easily, eventually melting down to become oil
    pull the pump again prime the pump in the method described and you will get oil pressure
    to ease the pressure on the bearings , remove the plugs until the oil light goes out which will be a few seconds of cranking the motor over



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Posted on Jan 02, 2017


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