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Confused about this wheel part for 355

Discussion in '348/355' started by lotusk, Feb 28, 2009.

  1. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    #1 lotusk, Feb 28, 2009
    Last edited by a moderator: Sep 7, 2017
    in the attached parts page I would like to know what the part number 15 does and if all wheels have this fitted............none of the wheels on my 1995 f355 have them but maybe they have been lost in the distant past
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  3. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
    8,237
    San Antonio, Texas
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    Scott
    #2 saw1998, Feb 28, 2009
    Last edited: Feb 28, 2009
    They are a very important and expensive inner sealing cap which (I believe) primarily functions to prevent oxidation and electrolytic corrosion of the magnesium wheels. No 14 is just a rubber O-ring.
     
  4. 285ferrari

    285ferrari Two Time F1 World Champ
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    Sep 11, 2004
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    Robbie
    #15 is a plastic cap that snaps in on the back side of the center cap--I imagine lke Scott said it keeps out dirt and corrosion from the center cap area...
     
  5. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    are you sure part 15 snaps onto the back of the centre cap?..............or does it sit in the recess on the other side of the wheel centre without actually touching the centre cap?
     
  6. davehelms

    davehelms F1 Rookie

    Jan 3, 2004
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    Dave Helms
    Robbie just skipped one word, center cap 'area'.

    The 94's and early 95's held it in with a snap ring, later cars relied on just the O-ring holding it in place. Either way the function is as stated earlier.
     
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  8. 285ferrari

    285ferrari Two Time F1 World Champ
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    Sep 11, 2004
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    Robbie
  9. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    thanks dave...all my wheels will have to come off so I can put part 15 in place
     

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