Any tips for how to remove dovel when timing Mondial T | FerrariChat
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Any tips for how to remove dovel when timing Mondial T

Discussion in 'Technical Q&A' started by nicce12, May 19, 2023.

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  1. nicce12

    nicce12 Karting

    May 22, 2013
    76
    Stockholm, Sweden
    Full Name:
    Niclas Olovsson
    #1 nicce12, May 19, 2023
    Hello,

    I am in the process of doing a major on my Mondal T, on of the cams are a bit of from the assembly marks and I am trying to move the dovel so I can adjust the cam to the assembly mark (and the degreeing the cams etc). I have so far failed to remove the dovel, any good tips on tools or procedure to get the pesky little bugger out? Funny thing was that I adjusted another cam and that dovel could easily be picked out with a vice grip,,,
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    Thanks, Niclas
     
  2. waymar

    waymar Formula 3

    Sep 2, 2008
    1,354
    Northeast, PA - USA
    Full Name:
    Wayne Martin
    #2 waymar, May 19, 2023
    Sometimes spraying it with penetration oil. Then gently rock the pulley will give you clearance .
     
    nicce12 and wmuno like this.
  3. wmuno

    wmuno Formula Junior
    Silver Subscribed

    Dec 24, 2007
    522
    Wilmette, Illinois
    Full Name:
    Bill Muno
    #3 wmuno, May 19, 2023
    After applying the penetrating oil, heat the pulley with a heat gun. Several cycles might be necessary to free the pin.
     
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  4. nicce12

    nicce12 Karting

    May 22, 2013
    76
    Stockholm, Sweden
    Full Name:
    Niclas Olovsson
    #4 nicce12, May 19, 2023
    I was eyeing the torch in the corner of my eye, will attemt not to burn down something important... Thanks!
     
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  5. tbakowsky

    tbakowsky F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    19,952
    The Cold North
    Full Name:
    Tom
    #5 tbakowsky, May 19, 2023
    Remove the cam..knock the pin out from behind.
     
  6. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,566
    San Carlos, CA
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    Mitchell Le
    #6 yelcab, May 20, 2023
    Remove the cam pulley, knock it out from behind, get a set of Testarossa dowel pins. They have threaded holes in the middle and you can insert a bolt, a tool, to pull it out when you are doing cam timing.

    The look of the pulley means it has not been service in a while. Clean it up, run a 6mm drill bit (it's metric) into the holes to clean those up so they don't stick. Buy a small flat cutter (that cuts 90 degrees to the plan of the handles), grind the tips down to fit behind the edge of the dowel pins and use that as your pin puller tool.

    @fatbillybob claims he has a method that knocks these pins loose everytime.
     
  7. Ferrarium

    Ferrarium F1 Veteran
    Sponsor Rossa Subscribed

    Jul 28, 2018
    5,728
    Central NJ
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    Eric
    #7 Ferrarium, May 21, 2023

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