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Gasket and carbon build up removal

Discussion in 'Technical Q&A' started by Irishman, Oct 31, 2015.

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  1. Irishman

    Irishman F1 Rookie

    Oct 13, 2005
    3,526
    Raleigh
    Full Name:
    Kevin
    #1 Irishman, Oct 31, 2015
    Last edited by a moderator: Sep 7, 2017
    Not Ferrari related but technical and this place is a great wealth of information. I did a search on gasket removal and folks suggested

    Permatex gasket removal
    Goof off
    Plastic putty spatula from Lowes/HD (doesn't seem sharp enough to me)

    I'm dealing with aluminum on my Harley (130K miles). The base gaskets are fused on. The best idea I found online was getting a piece of plexiglass and putting an edge on it with a grinder. But isn't there a tool out there already?

    Also have some carbon build up to remove :):). Suggestions appreciated.
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  2. afwrench

    afwrench Formula Junior

    Nov 24, 2004
    593
    NY
    Full Name:
    Mike
    #2 afwrench, Oct 31, 2015
    No rocket science here. Any number of dedicated gasket scapers out there or use a razor blade, just go slow. Scrape the bulk of the carbon off the pistons and use a rotary wire/brass brush to finish.Good luck,Mike
     
  3. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,260
    socal
    #3 fatbillybob, Oct 31, 2015
    walnut shells
     
  4. Cribbj

    Cribbj Formula 3
    BANNED

    Jan 1, 2011
    2,316
    Cooke City MT, The Coolest Small Town in America
    Full Name:
    John
    #4 Cribbj, Oct 31, 2015
    I've used both aircraft paint stripper & MEK to decarbon piston crowns. The paint stripper is much more viscous and stays where you daub it. Softens up the carbon, and you can then wipe it off or use a rotary brush to scrub it off.
     
  5. ulf308qv

    ulf308qv Karting

    Nov 1, 2003
    100
    Sweden
    Full Name:
    Ulf M
    #5 ulf308qv, Oct 31, 2015
    "Trock" used to make a lapping tool for the cylinder bases, personally I use razor blades and time..
    A lathe would do the trick. For the piston tops, rotary steel brush.
     
  6. ///Mike

    ///Mike F1 Veteran

    Dec 11, 2003
    6,097
    Bugtussle
    #6 ///Mike, Oct 31, 2015
    Same here. Aircraft paint stripper is a great help in softening really tough gaskets (same stuff as gasket remover as far as I can tell). But there's no substitute for time, carefully scraping with single edge razor blades. Don't forget Scotchbrite pads for finishing up the areas. Just make certain to keep all abrasives out of the crankcase, etc.
     

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