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Thread: very loud tappets

  1. #31
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    Just xe it

  2. #32
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    The headgasket must be the right way round as there dowls located it as the holes are bigger one end than the other so it can go only one way.

    Yea I'm sure they sit right as I took the cam cover off to check.

    The tappets are in properly as I thoroughly cleaned them out when I rebuilt the tappets.

    I Duno if you saw my last post as png was on one at the weekend as I said I'd found the label of my headgasket set which said 12nz which is injection but mines 12nv carb, is there any difference?

    Cheers for the help gus really appreciate it

  3. #33
    Senior User mowgli's Avatar
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    the 12nv is larger bore its around the 78mm mark (77.8 iirc) and the 12nz is 72mm. that could actually be the problem..
    Last edited by mowgli; 27-06-11 at 07:39 AM.

  4. #34
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    Ah ok that might be it then. Rang the company i got the headgasket off and they said they only list for a 12nz and a 12st. What's a 12st?

  5. #35
    Senior User mowgli's Avatar
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    Quote Originally Posted by luke1.4sr
    Ah ok that might be it then. Rang the company i got the headgasket off and they said they only list for a 12nz and a 12st. What's a 12st?
    12st is an early carb version, and it is pretty much identical to the nv

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    i doubt uve got a head gasket issue with it makin it sound rough. that would just alter the compression. those tappets are coil bound tight against the cam they sound like thier at thier max did u change the oil ? u could have a a piece of the gasket blockin a oil way or even the sump pick up!! makin low oil pressure....

  7. #37
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    Thanks for the help guys but I managed to sort it out and it's running a dream

    I'll show you lot late once I finish work what it was

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