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Valve Gasket Sealant The Final Word!

Discussion in 'Technical Q&A' started by robertgarven, Sep 23, 2009.

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  1. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,347
    Frederick, Maryland
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    Brian Brown
    #26 Motob, Oct 8, 2010
    I recommend JB Weld, it never leaks, and the next person that gets to remove the covers is in for a surprise!

    Seriously, if you buy the good green gaskets with the red rubber embossed on them, all you need is a little 3 bond silicone sealer at the ends of the gaskets where they meet the covers and o-rings. Anything more is overkill and just causes the next person in there the frustration of cleaning off the old bonded on sealer/gasket material.

    Brian Brown
    Patrick Ottis Co,
     
  2. robertgarven

    robertgarven F1 Veteran
    Owner

    Feb 24, 2002
    5,284
    Ventura, California
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    Robert Garven
    #27 robertgarven, Oct 8, 2010
    Last edited by a moderator: Sep 7, 2017
    Brian,

    I got my gaskets from Ferrari but they are just green the only part that has the red seal on it is for the front left small ropund camshaft cover. Several Ferrari techs said they put the gaskets on dry. My mating surfaces are pretty smooth. Have you ever used the hylomar?

    What do you think of the slight coating of grease on the head side to aid removal?

    Thanks

    Rob
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  3. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,347
    Frederick, Maryland
    Full Name:
    Brian Brown
    #28 Motob, Oct 9, 2010
    I put my gaskets on dry, but they have the red sealing bead on them. We get out gaskets from T Rutlands. you could call them to see if they have the type with the red seal for your model car.
    I really wouldn't worry about it too much, if the surfaces are flat, and you have good material gaskets (Green), then I would just put them on dry except for a little dab of silicone sealer on the ends where the covers meet and the o-rings meet.

    You can use grease or hylomar if you like to take things apart all the time, but they don't mate well with the silicone on the ends.

    Ferrari put them on dry at the factory, I think you can do the same.

    Brian Brown
    Patrick Ottis Co.
     
  4. Spasso

    Spasso F1 World Champ

    Feb 16, 2003
    14,656
    The fabulous PNW
    Full Name:
    Han Solo
    #29 Spasso, Oct 9, 2010
    Ditto on the Locktite 518. I have used it with great sucess. I haven't had a leak with it yet. Easy to pull stuff apart later.
    I am told it can't handle the higher temperatures that the Hylomar can though.
     
  5. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,237
    Meadow Vista, CA
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    R Moseley
    #30 ramosel, Oct 10, 2010
    I would if I could get away with it... <grin>
    Funny when you said that it made me think of going to Nurburgring with my brother when the early Porsche turbos were being fielded. They had such a hard time keeping the head gaskets sealed on the race cars, they were just welding the jugs to the heads. Made motor assembly a b**ch but they stopped blowing head gaskets!

    Thanks Brian, had I bought that type I would certainly think they would be sufficient. Mine were the green gaskets but no silicone (and I thought they were top of the line at the time). In which case I'd support your method. But just a plain gasket... its going to get a smear. Too many years prepping race cars to go dry and chance a leak. I hate leaks.
    (he says as he leaves to go work on the Cortina...)

    Rick
     
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