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Thread: tapping noise

  1. #1
    dgannon69's Avatar
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    tapping noise

    hi guys, over the past few days when i've been starting the car from cold in the morning and theres been a slight tapping, knocking noise coming from the engine. anybody got any ideas wat this may be? i guessed it could just be the hydralic tappits as the oil hadnt circulated to them. its not a loud noise but it doesn't sound normal. as its only started in the cold weather i'm just hoping its nothing serious.

    i also had to top up the coolant today because it fell below the minimum and flashed the warning light on the dash. are there any particular areas i should be checking for coolant leaks? there haven't been any patches underneath the car from a leak so where could it be going?

    thanks in advance for any help.

    Regards
    Dave

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  3. #2
    DamoS3's Avatar
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    Re: tapping noise

    Could possibly your head gasket is gone. Check the underside of the oilcap for white mayo-type looking stuff. The same thing happened me a couple of weeks ago and it was that the gasket was gone but the water was leaking into a cyclinder, and that went on to a hot turbo causing it to crack badly resulting in a new one to be fitted. It would be tappy for the first minute or so then it would run fine. Get it looked at asap.

  4. #3
    dgannon69's Avatar
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    Re: tapping noise

    ok mate thanks for that. i hope to god its not as i can imagine it would cost lots and lots!! i checked under the oil cap and there was nothing there that showed signs of a leak like that. the one other thing i noticed is if u rev it up to about 3K wen cold and let the revs drop u get a rattling noise then?? any more info from people would be much appreciated...

    Dave

 

 

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