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308/328 cam belt drive bearings

Discussion in 'Technical Q&A' started by RGigante, Feb 8, 2012.

  1. Mondial86-71

    Mondial86-71 Rookie

    Nov 9, 2019
    14
    Full Name:
    Ryan Lippincott
  2. Mondial86-71

    Mondial86-71 Rookie

    Nov 9, 2019
    14
    Full Name:
    Ryan Lippincott
  3. Mondial86-71

    Mondial86-71 Rookie

    Nov 9, 2019
    14
    Full Name:
    Ryan Lippincott
  4. afterburner

    afterburner Formula 3
    Silver Subscribed

    Jun 20, 2008
    2,152
    Hong Kong
    Surgery! Excellent, Ryan.
     
  5. yelcab

    yelcab F1 Veteran
    Consultant

    Nov 29, 2001
    9,937
    San Carlos, CA
    Full Name:
    Mitchell Le
    You did not take the oil pan off? Damn, that is … persistent. Borderline on insanity.
     
  6. Mondial86-71

    Mondial86-71 Rookie

    Nov 9, 2019
    14
    Full Name:
    Ryan Lippincott
    Oil pan came off to remove the oil pickup tube. The oil pickup tube studs had to come out to slide the front cover off.it took hours of laying on my back to do it but that part was accomplished. The gasket clean up is next then time to install inner bearings,seals and outer bearings. Hopefully it goes back together without any problems! I am a little leery of sliding the cover on with the cam seals installed but am more scared putting them in after the front cover is on.have you ever done the cam seals? Any hints?
    Thanks
    Ryan
     
  7. Dr-Boost

    Dr-Boost Rookie

    Jun 21, 2018
    1
    Full Name:
    IAN THOMPSON
    Hi Ryan, great work, I hope you got it sorted.

    When putting the cam timing cover back on along with the lower pullys, did you have to 'time' them with any specific marks or can they be put on in any rotational orientation when meshing with the crank?

    Thanks,

    Ian
     
  8. 335s

    335s Formula Junior

    Jan 17, 2007
    861
    SF Bay Area
    Full Name:
    T. Monma
    FWIW-MUCH easier to do this job with a "blind hole bearing puller" kit....readily available, allows job to be done properly with cover insitu....
     
    2dinos likes this.
  9. 335s

    335s Formula Junior

    Jan 17, 2007
    861
    SF Bay Area
    Full Name:
    T. Monma
    My memory has returned to functional today!

    This kit is available from German tool co: WURTH-not cheap, but I've done this job over 100 times on this class of engine with this tool.

    A WARNING here is appropriate: the 90 degree pins which are inserted in between the balls locked in the races by rivet secured spacing "races", is a very TIGHT fit, and, enormous forces are being applied to an extremely small surface area-one which is MUCH softer than is the material of the bearing....
    That said, these two "pulling arms/jaws", are, effectively, disposable components of the tool/process.
    I have done this for decades, so I can get 5-10 pairs of bearings pulled, before, these parts become "suspect"/prone to rupture and thus, require replacement.
    So, I advise anyone who considers buying the tool set, additionally acquire a half dozen spare PAIRS of the appropriate sized puller/jaws.
    As any tool of this type requires an element of acquired feel and familiarity, don't be surprised if you beak a PAIR on the FIRST bearing...i
    !t IS an acquired skill, after all....
    FWIW
     

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