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Thread: taaping noise

  
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    truck7758's Avatar
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    taaping noise

    when i get to about 3k revs i hear a tapping noise coming from the engine. i have checked the oil and it is fine.
    its a astra g 1.8 16v sport W reg

    Any ideas?

    cheers

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    astra sp0rt's Avatar
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    I was having the same problem, but was more noticeable when just idling. New timing belt and water pump didn't cure it, was told it was the hydrolic lifters, but I put new GM spark plugs in, and it seemed to cure it. Worth a try, new plugs only cost £13ish

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    i took it to 2 different garages today and they bot said that altho they could both here the tapping noise they just said not to worry about it its nothing altho the second one did say that an engine flush/new filter/new oil might help and so im having this done on saturday for £40

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    check your manifold for any cracks m8

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    Toms1989's Avatar
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    Don't use Engine flush mate, not very good for your engine

    It could loosen up engine gunk that has filled in holes and stuff, and could do more damage than good!
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    Could have too much oil, can cause the tapping to be loud at idle. Best thing to do would be an oil change with some top quality oil. Let us know how it goes.
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    well, it went in the garage yesterday and had the work mentioned above done and although the engine now sounds a lot smoother and seems to have a bit of extra GO!!! the tapping noise still remains.
    Im thinking of having the cam belt changed on monday as im on 53000 and i dont think its had one yet and im driving about 600miles on monday/tuesday.

    Do you think the tapping noise could be the main bearings/shell bearings?

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    also the tapping noise sounds like when you as a kid stick a lollipop through the back wheel of your bike (heard someone describe it like this yesterday on another forum about a cavalier i think and then thought yeh thats what mine sounds like)

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    If a service does not fix it, check your manifold and head gasket as it could be normal noise just being louder than usual.
    "Racing improves the breed!"

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    i have now been told that it sounds like the bottom end could be on its way out i.e. bearings etc.
    Any ideas what it would cost me to have it repaired or would i be better of having the whole engine replaced.

    cheers

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