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    High Pressure Oil Leak

    Hi,
    Part of the ongoing saga of the restoration of XCE 357L. We have a small high pressure oil leak, I say high pressure because it only happens at 3000 rpm and above. The leak is from one of the three high pressure oil bearing components situated on the right hand side of the engine below the exhaust manifold.

    We are not sure as yet whether it's the transfer housing, the oil pump or the oil filter casing. We suspect it's either the transfer casing or the pump because we have changed the filter and replaced the 'O' ring.

    We are going to try to 'look' at the components with the engine running using an endoscope connected to a smartphone but even if we know which one is the problem it seems that from earlier experiences we won't be able to fix the problem from below with the front part of the exhaust removed.

    Can anyone tell us whether we can access these three components with the right hand exhaust manifold removed or is it 'oh joy oh joy' an engine out job?

    #2
    hi Tim , the oil pump o rings will often leak and also the bypass o ring on the pump .the transfer housing can be done from up top that is also a common fail . one other issue is the oil pressure switch they can fail also the top come loose and with extra pressure tends to become incontinent. all these items are replaceable whilst the r/h downpipe is removed only allowing access. fiddly but doable if they are STD ex manifolds . make sure the new o rings are the correct size as some readily available are poor .
    steve
    Beautiful early mk1 white tv8 mod? MGB GT and now looking for another V8

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      #3
      Many thanks, we will have a look through the camera today and then remove the exhaust manifold. One problem we have is the oil pressure sensor/oil pressure gauge oil feed/switch it's bulky and blocks access to the centre bolt pf the transfer housing.

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        #4
        Great info there from Steve, but I'd like to add that the transfer housing can crack where the oil switch or oil pressure gauge adaptor if you have one is screwed in - its been known for people to overtighten them, and as the switch has a taper thread the thin housing will suffer

        Russ

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