Omega 2.5V6 ticking

Discussion in 'Omega' started by rp, Sep 24, 2005.

  1. rp

    rp Guest

    Just in case someone has a crystal ball working or has come across this
    before :)

    I can hear a metallic ticking from the nearside bank towards the top,
    it sounds as if it's the middle cylinder and at the exhaust side but it
    could be echoing from somewhere else. It sounds as if it's about every
    other rotation of the engine, about 3 ticks a second when idling.

    I know it's got hydraulic tappets so they shouldn't be ticking once the
    oil pressure has got up and I can't see one cylinder pinking without
    the engine management light coming on.

    I've got to replace the cambelt/idlers soon and wondered if anyone had
    any idea of what could be causing this. Do cam followers break and if
    so can they be replaced or is it a new cylinder head?
    rp, Sep 24, 2005
  2. rp

    me140 Guest

    Is the idle smooth? Just wondering about a broken valve spring?
    me140, Sep 24, 2005
  3. rp

    rp Guest

    Yes it seems to be, wouldn't the piston be smashing into the valve
    rp, Sep 24, 2005
  4. rp

    Guest Guest

    Nope. methinks you are looking at a faulty hydraulic tappet. Mined (sp?)
    you, I would change the oil first. After that I would probably ignore
    the noise. PROVIDED that it did not orignate from the timimg belt area.
    Guest, Sep 25, 2005
  5. rp

    me140 Guest

    Spring just breaks a coil off so still shuts before piston gets there.
    me140, Sep 25, 2005
  6. rp

    rp Guest

    No it's definitely not from the cambelt area. I can't hear it with the
    bonnet closed but my neighbour says it's been doing it for ages
    (several years maybe) so I think it's pretty safe to ignore it :)

    rp, Sep 25, 2005
  7. rp

    rp Guest

    I had visions of the broken end winding itself down through the other
    half but there probably isn't that much clearance between coils.

    Thanks for the advice. I think I'll just ignore it for now.
    rp, Sep 25, 2005
  8. rp

    Gary Millar Guest

    Mines ticks as well and has done for a couple of years. When I lift the
    bonnet I can't here it. I was told that the egr valve is prone to ticking as
    well (drivers side above the exhaust manifold a round type thing with a
    corrugated metal pipe at the base and a wiring connector on the top.)
    Gary Millar, Sep 25, 2005
  9. rp

    rp Guest

    I can only hear mine ticking with the bonnet up and it's coming from
    the other side of the engine to the egr valve but thanks for the
    rp, Sep 26, 2005
  10. rp

    airsmoothed Guest

    My 2.5 V6 had this kind of ticking noise when I bought it, i assumed it
    was a lazy lifter & left it. It was still ticking much the same 5 years
    & 70,000 miles later when I sold it.
    airsmoothed, Sep 28, 2005
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