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Thread: fume smell, hard bitumin around injector???

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    Default fume smell, hard bitumin around injector???

    Just been to look for leaking vac pipes (as in another thread - mines split as well), took the engine cover off and immediatly noticed what looks like hard bitumin around the injector nearest the cam belt, it has splattered all over and is solid, the injector clamp looks to be set in with the stuff.
    the inlet manifold swirls are leaking and going to be replaced soon, but the bitumin type substance is only on that injector and on inside of cover above it.
    Any ideas on this one??? cheers

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    You have by the sound of it a leaking injector compression seal.Basically its the seal on the bottom of the injector sealing it against the head.Unfortunately it is getting very common across a lot of manufacturers for reasons i cant really pinpoint.

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    tried chipping some out - its like coal

    are the injector seals easy to get hold of

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    there available from the stealers - you will also need to remove the excess carbon to ensure the new seals seat correctly otherwise the new ones will be gassing back past the new injector washers

    0-Large smile ......every time it's driven

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    looks like an easy job - apart from the excavation!, does anyone know what the thread is on the injector so i can blank it off while mining the coal out

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    The injectors are a push fit into the head, with a clamp locking them in place.

    If they are really tight in the head, there is a special forked tool that attaches to a slide hammer to remove the injectors.

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    Regular Member DaveW555's Avatar
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    Use lots of wd40 and just try turning the injector back and forth til it loosens up then it should pull out easier, a little tip for you so the seal doesn't move is put a tiny amount of copper slip round the seal and slide it down the injector rather than dropping it in the hole and trying to line it up, the copper slip will also help it seal, i always put a bit of copper slip round the body of the injector as well, just makes life a lot easier if you ever have to remove them again. If the wd40 doesn't work, try pouring coke around the injector and leave it over night to soak in, 9 times out of 10 it does the trick. hth

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    d'oh, course its clamp on.

    going to get the engine hot to see if it softens the crud

    Another use for coke - other than melting children teeth or cleaning coins!

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    Regular Member DaveW555's Avatar
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    Hey its magical stuff, maybe they should call it swiss army coke lol

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    Default thread size

    the thread size on the injector should be 12mm x 1.5mm (a size)

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