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Thread: Crankshaft Sprocket Bolt 1.9 cdti signum

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    Default Crankshaft Sprocket Bolt 1.9 cdti signum

    Could someone advise me in which way to undo the crankshaft sprocket bolt on a signum 1.9 cdti, Haynes says left hand thread and i have read on here normal right hand thread.
    i have moved it a couple of notches by turning clockwise but would like conformation.
    Thanks in advance
    Alan

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    Ex Vec-C Admin ed taylor's Avatar
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    I am not sure which direction it is. But I belive it is VERY tight.

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    left hand thread ...and tighten to 340nm

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    That is tight then.

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    Cheers guys just didn't want to make it any tighter than it already is.

    i will tackle it again next week as i believe i need a replacement bolt.

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    whats wrong with it ?

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    Thought it was only the Corsa that had a LH thread... Either way they are F*$!*^ tight.
    Make sure when you are undoing the bolt that you are prepared for it to release, there will be a fairly loud 'crack' and you will catapult yourself in the direction of movement, so make sure you are not to close to anything solid.
    Also use a good quality socket and breaker bar.
    A new bolt is recommended as they are 'stretch' bolts when torqued. About £12 fm Vx.

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    nothing wrong with the sprocket just the oil seal behind leaking.

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    Quote Originally Posted by alkez100 View Post
    nothing wrong with the sprocket just the oil seal behind leaking.
    ok ..when you have the sprocket off just inspect the inner part where the woodruff key is and dont be shocked if it is broken off ...seems to be a common problem as of late .....

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