365 GT4 2+2 Timing chain check | FerrariChat
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365 GT4 2+2 Timing chain check

Discussion in '365 GT4 2+2/400/412' started by hskasimir, Apr 21, 2006.

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  1. hskasimir

    hskasimir Karting

    Apr 5, 2006
    64
    Berlin
    Full Name:
    Howard Sheronas
    #1 hskasimir, Apr 21, 2006
    Can anyone help me? I would like to check the timing chain and tensioner on my V12 engine. What is the procedure and in what order do I proceed? Which parts have to come off first before I get to the chain..?
    Thanks,

    Howard
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,104
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #2 Rifledriver, Apr 21, 2006
  3. ferrarifixer

    ferrarifixer F1 Veteran
    BANNED

    Jul 22, 2003
    8,520
    Melbourne
    Full Name:
    Phil Hughes
    #3 ferrarifixer, May 8, 2006
    Remember that with a stretched chain, cam timing will also be getting further away from optimum.

    Of the 4 cams, the one nearest the tensioner will be the worse. On carb cars, it's hard to pick by feel/ear, but a 400i/412 dies if the cams go off.
     
  4. guitnwithit

    guitnwithit Karting

    Jul 16, 2009
    54
    #4 guitnwithit, Dec 22, 2009
    You will only get 50k out of a chain before it has stretched half an inch.
    when this happens power goes away, you try and try to tune but it starts to let the cams go out of phase.
    just dig in and change it!
     

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