575: Inlet camshaft caps fitted not in the right orientation ? | FerrariChat
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575: Inlet camshaft caps fitted not in the right orientation ?

Discussion in '456/550/575' started by yves8174, May 28, 2018.

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  1. yves8174

    yves8174 Rookie

    Nov 11, 2011
    29
    #1 yves8174, May 28, 2018
    Hello,

    still continuing my major on the 575. Car has 30.000 kms and all seems original in the car and I have no records indicating that a major with camcovers has been executed.

    But, odd stuff while observing the camshaft caps (inlet) on the 1-6 bank.

    Cap 3 seems not in the right orientation (see picture). The "S" mark is not oriented toward the front of the engine. Number has been engraved on the right side of the cap (or so it was mounted).

    Image Unavailable, Please Login

    All the other caps have this orientation.
    The "S" towards the front of the engine. Number on the left side (logically upside down..=. And so it is for all the other caps (left and right bank):

    Image Unavailable, Please Login

    Caps seems all the same (apart the 8 at each end of the cams).
    Anything I should worry about ?


    Thanks again +
     
  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,169
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #2 tazandjan, May 28, 2018
    Sounds like that was the last one installed on a Friday.
     
  3. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    28,997
    socal
    #3 fatbillybob, May 28, 2018
    You can't worry about it now. Keep this working orientation. It may have been swapped wrong at some point. Maybe not. In theory would not matter due to factory align hone of the camshaft pathway. OTOH, If building a race engine small details matter.
     
  4. yves8174

    yves8174 Rookie

    Nov 11, 2011
    29
    #4 yves8174, May 28, 2018
    Thanks for the replies.
    I've checked the WSM and I do not find any reccomendation regarding the orientation of the caps, apart the fact that they need to stay in that specific order (which is the case, no caps are inverted of course..).

    The car made 30.000 kms like this, I would just go the conservative way and leave the caps in their original position.. another sleepless night will probably help...
     
  5. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,368
    Frederick, Maryland
    Full Name:
    Brian Brown
    #5 Motob, May 29, 2018
    Someone put it on backwards. Pull it off and look to see if there is any abnormal wear pattern. If it looks bad, you might consider polishing it out. Otherwise, I would reinstall it in the correct orientation. You can put some engine assembly grease on the bearing surface before reinstalling it correctly, then rotate the engine over a few turns. Remove it, and look to see if there is any metal to metal contact, indicating too tight a clearance. If it all looks good, then I would reassemble it correctly.
     
  6. yves8174

    yves8174 Rookie

    Nov 11, 2011
    29
    #6 yves8174, Jun 2, 2018

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