Surface Ferrari Block without removing studs | FerrariChat

Surface Ferrari Block without removing studs

Discussion in 'Ferrari Discussion (not model specific)' started by Dailuracer, Jun 24, 2010.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. Dailuracer

    Dailuracer Rookie

    Jun 24, 2010
    11
    Central California
    Full Name:
    Mike
    #1 Dailuracer, Jun 24, 2010
    Last edited: Jun 24, 2010
  2. dmaxx3500

    dmaxx3500 Formula 3

    Jul 19, 2008
    1,027
    why not just r&r the studs and do the job right?
     
  3. ztunelover

    ztunelover Formula Junior

    Oct 1, 2009
    641
    Calgary, AB
    Full Name:
    Krish
    Because that would be way too obvious.

    But I agree, if decking the block might as well get new studs or at least remove them while re-decking.
     
  4. maestro8

    maestro8 Formula 3
    BANNED

    Dec 2, 2009
    2,054
    Nor Cal
    Full Name:
    Jason
    What's the difference, if the CNC mill cuts at the same height across the deck?

    Perhaps this is the new "right" for the 21st century! :)
     
  5. Dailuracer

    Dailuracer Rookie

    Jun 24, 2010
    11
    Central California
    Full Name:
    Mike
    Good Point BUT……do you want to run the risk of rendering that 365GTC/4 block JUNK?

    Some Ferrari head studs screw into the block deck and others go down into webbing at the base of the cylinder with very long high grade steel studs.

    As the blocks are aluminum and the studs are steel (two dissimilar metals)
    ‘electrolysis’ can take place over time between the stud and the block resulting in them bonding / seize together and effectively becoming one.

    If your block has the long studs and electrolysis has taken place, when you try to remove the stud to rebuild your engine you could damage the stud or the block which would create a very expensive repair.

    To repair this you have to drill out the broken stud or drill out the block and
    install a ‘Helicoil’ or try to weld up the damaged area, so it can re re-tapped to accept the stock stud.

    With blocks that have long studs going down into the base of the block, this can be very hard to do if not impossible and a irreplaceable or expensive block (engine) can be rendered ‘JUNK’.

    By milling the deck with the studs in place and not trying to remove them
    and using a special high speed cutter in the CNC controlled / programmed
    mill you can get a perfectly level and smooth deck surface without running the risk of destroying a priceless engine block. Is it worth the risk of not using the latest technology available to us today.

    Lesco Engine Machine in San Luis Obispo, Calif. know what they are doing.
     
  6. SRT Mike

    SRT Mike Two Time F1 World Champ

    Oct 31, 2003
    23,343
    Taxachusetts
    Full Name:
    Raymond Luxury Yacht
    The longer the cutter, the longer the lever arm between the spindle nose of the CNC machine and the cutting surface.... the less flat the surface.

    for the flattest surface, you want a large diameter cutter close to the spindle nose. Leaving the studs in requires a small diameter cutter some distance away from the spindle nose (longer than the studs are high off the block, at least). This is sub-optimal.

    The result could be good, just not AS good as fly cutting with a large diameter cutter.

    I can see it is a better option if you are concerned about the studs not coming out, though.
     
  7. Dailuracer

    Dailuracer Rookie

    Jun 24, 2010
    11
    Central California
    Full Name:
    Mike
    #7 Dailuracer, Jul 3, 2010
    Last edited by a moderator: Sep 7, 2017
  8. SRT Mike

    SRT Mike Two Time F1 World Champ

    Oct 31, 2003
    23,343
    Taxachusetts
    Full Name:
    Raymond Luxury Yacht
    Cool pics!
     

Share This Page