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Thread: S2 4.2 L engine rebuild - any other things to consider at this time?

  1. #1
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    S2 4.2 L engine rebuild - any other things to consider at this time?

    I am having my engine completely overhauled and rebuilt - long story - but the block is back from re-bore and the crankshaft is freshly ground and was fitted today.


    Are there any other jobs/mods that I really should consider asking for at the same time? It is an expensive job already BUT would be annoying to miss something now that would have been much easier at this stage.


    I have specified electronic ignition and hi torque starter motor already


    I have considered an uprated oil pump (thinking more oil pressure would be good for longevity)
    It was suggested I get a 6 branch exhaust manifold made to connect to my existing exhaust


    I am an E-type novice so would welcome any suggestions or advice


    Thank you
    Jaguar XJR, 2004, Midnight Black
    Porsche 911 Carrera 2 996 1998, also in Black

  2. #2
    Senior Member Fraser's Avatar
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    Were the crankshaft sludge traps cleaned out ? These can be seen on the crank as allen-keyed plugs. They are notorious for getting partially blocked and affecting the oil supply to the crank bearings. Why Jaguar included them is a mystery, as anything getting that far is unlikely to be damaging.

    Articl by Roger Bywater of AJ6 Engineering, who worked at Jaguar in the latter years of XK engine production: -

    http://www.jagweb.com/aj6eng/xk-engine/page1.php

    Note paragraph at the bottom of the page.

    He also says the long stud engines were an improvement. Well, on that I have to disagree, as one who had to suffer the consequences of them later in the life of my engine.
    Fleet manager (!!) of: -
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  3. #3
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    Thanks for that, and the interesting article
    Jaguar XJR, 2004, Midnight Black
    Porsche 911 Carrera 2 996 1998, also in Black

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