Corsa C timing chain

Discussion in 'Corsa' started by John, Sep 8, 2009.

  1. John

    John Guest

    How big a job is it to fit a new timing chain on the Corsa C. Where is the
    best place to get the special timing tools?

    Thanks for any help.
     
    John, Sep 8, 2009
    #1
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  2. John

    me140 Guest

    This is a big job and not for the faint hearted. How happy are you with
    your car fixing skills?
    Most tool suppliers will have the lock up kit - Halfords etc.
     
    me140, Sep 8, 2009
    #2
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  3. John

    me140 Guest

    Lots of kits on eBay - £36 plus p&p

     
    me140, Sep 8, 2009
    #3
  4. John

    John Guest

    Hi

    Is it an engine in situ job & just requires removal of rocker cover, timing
    cover & sump?

    Are the ttools needed because the cam sprockets are not keyed onto the cams
    but taper fit?

    Thanks in anticipation.
     
    John, Sep 9, 2009
    #4
  5. John

    me140 Guest

    The tools lock the crank, both cams and camshaft sensor ring. It is done
    with the engine in situ. 1.0 is easier cos you have more room but the job is
    the same on both 1.0 and 1.2 engines.
     
    me140, Sep 9, 2009
    #5
  6. John

    John Guest

    Thanks for your reply.

    Most timing chain engines that I remember relied on timing marks and not
    tools. Does this mean the sprocket are not keyed onto the cams but are a
    taper fit so they are infinately variable, thus requring tools to lock into
    place? (Escort diesels used to do this with their camshafts, all be it on a
    belt drive engine)

    Thanks again.
     
    John, Sep 10, 2009
    #6
  7. John

    me140 Guest

    That's right - no key way.
    When Vauxhall found out they had a bad batch of timing chains going around a
    couple of years back they bought out a great tool to change them.
    You just split the old chain link, fastened the new one one to it - undid
    the cam pulleys so they could spin freely and then turned the crank to wind
    the new chain on while pulling the old one off. when you got to the end the
    tool turned into a link spreader so you could join the 2 ends of the new
    chain together. Hope that makes sense !!!
    Only needed a cam cover gasket.
    Of course this is no good if your tensioner or guides have worn cos the
    chain has been slapping about.
     
    me140, Sep 10, 2009
    #7
  8. John

    John Guest

    I will obviously need a chain kit. rocker gasket, timing cover gasket, sump
    gasket & crankshaft oil seal. Is ther any other items I need?
     
    John, Sep 17, 2009
    #8
  9. John

    me140 Guest

    Water pump gasket,thermostat housing gasket anti freeze and it is best to
    change the oil and filter while you are doing it - you have the oil out
    anyway.
     
    me140, Sep 19, 2009
    #9
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