355 cam follower/bucket wear | FerrariChat

355 cam follower/bucket wear

Discussion in '348/355' started by Carmellini, Aug 14, 2019.

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  1. Carmellini

    Carmellini Formula Junior

    Jul 16, 2019
    814
    #1 Carmellini, Aug 14, 2019
    should I assume that the hydraulic lifter system on 355 engines mean there is never a valve lash adjustment necessary? do the cam followers or buckets wear and eventually need replacement?
     
  2. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    #2 yelcab, Aug 14, 2019
    Correct. You never adjust the valve lash. However, you may need to rebuild/replace the valve lifter bucket if it/they ever fail leading to ticking noises.
     
  3. Carmellini

    Carmellini Formula Junior

    Jul 16, 2019
    814
    #3 Carmellini, Aug 14, 2019
    so its a binary issue? how common is it for a bucket to fail? age or mileage issue?
     
  4. GerryD

    GerryD Formula 3

    May 5, 2010
    2,436
    North of TO
    Full Name:
    Guido
    #4 GerryD, Aug 17, 2019
    On a 355 we serviced this past winter....5 needed replacement.
     
  5. Carmellini

    Carmellini Formula Junior

    Jul 16, 2019
    814
    #5 Carmellini, Aug 17, 2019
    so they are replacement items......how do you determine replacement?
     
  6. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    #6 yelcab, Aug 18, 2019
    I have actually not met one that needed replacement yet, but I know they are out there. You remove the cam shafts, push on the lifters, if they give at all you need to replace them or rebuild them.
     

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