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Engine Noise

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Hi All, I have asked this before, sort of, I have a noise from my TT, sounds similar to a big end just starting to go, its there when you blip the throtle to around 3+K and back. After some thinking/scratching heads etc I stripped the bottom end to check the bearings, and they are all good.

Engine is very clean inside too.

 

now I am stuck. ITS NOT lifters, injectors etc. I have a slight bit of piston slap, always have had, and its not that that I am talking about.

 

Any ideas?

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    • Featured Replies

    Hi All, I have asked this before, sort of, I have a noise from my TT, sounds similar to a big end just starting to go, its there when you blip the throtle to around 3+K and back. After some thinking/scratching heads etc I stripped the bottom end to check the bearings, and they are all good.

    Engine is very clean inside too.

     

    now I am stuck. ITS NOT lifters, injectors etc. I have a slight bit of piston slap, always have had, and its not that that I am talking about.

     

    Any ideas?

    Mark did you check the main bearings??
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    • Author

    Yes, all good. I have sent you a PM....the noise is about 3k rpm, low for an big end (?)

    Doesnt smoke etc.

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    • Author

    Some one on Twin Turbo Net has sugested cam belt idlers and/or adjuster? Make any sense maybe? This might be what I have read about before, cant remember.

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