Front brake caliper piston question. | FerrariChat
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Front brake caliper piston question.

Discussion in '308/328' started by TommyA, Oct 21, 2019.

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  1. TommyA

    TommyA Formula Junior

    Oct 7, 2002
    549
    Atlanta
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    Tommy A
    #1 TommyA, Oct 21, 2019
    I have starter rebuilding my calipers and noticed that the pistons in front are of different design the ones in the rear. The Pistons on the front calipers do gave a smooth surface, half of it has a raised ring to it. My question is when putting back the piston where should the raised part be in orientation to the caliper?
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  2. johnk...

    johnk... F1 World Champ
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    Jun 11, 2004
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    John Kreskovsky
    #2 johnk..., Oct 21, 2019
  3. TommyA

    TommyA Formula Junior

    Oct 7, 2002
    549
    Atlanta
    Full Name:
    Tommy A
    #3 TommyA, Oct 21, 2019
    John,
    Not convinced that the orientation on the image is accurate, maybe someone that has the front wheels out can confirm please?
     
  4. johnk...

    johnk... F1 World Champ
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    #4 johnk..., Oct 21, 2019
    Hard to see in this picture so I drew the red line. The reason is to apply greater pressure to the front, outter part of the pad to help even pad wear.

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  5. Ehamilton

    Ehamilton F1 Rookie
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    Jun 13, 2010
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    Eric Hamilton
    #5 Ehamilton, Oct 21, 2019
  6. johnk...

    johnk... F1 World Champ
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    Jun 11, 2004
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    John Kreskovsky
    #6 johnk..., Oct 21, 2019
  7. TommyA

    TommyA Formula Junior

    Oct 7, 2002
    549
    Atlanta
    Full Name:
    Tommy A
    #7 TommyA, Oct 21, 2019
    Thank you both so much.
     
  8. kcabpilot

    kcabpilot Formula 3

    Apr 17, 2014
    1,614
    California SF bay area
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    Paul
    #8 kcabpilot, Oct 27, 2019
    There should be a template alignment tool for this, at least there is for Alfas. The one in the drawing looks pretty much identical.
     
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  9. dave80gtsi

    dave80gtsi Formula 3
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    Nov 3, 2003
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    Dave Meredith
    #9 dave80gtsi, Oct 27, 2019
  10. derekw

    derekw Formula 3

    Sep 7, 2010
    1,521
    London, UK
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    Derek W
    #10 derekw, Oct 27, 2019
    Google Derek’s 308– second last page has description and photos
     

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