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Rejuvenating Cork Gaskets

Discussion in 'The Hokey Ass Message Board' started by baker53, Mar 9, 2014.

  1. baker53
    Joined: Jan 17, 2003
    Posts: 340

    baker53
    Member

    Anyone out there know of a method of rejuvenating dried shrunk cork gaskets. I have some cork gaskets for a poly hemi that have shrunk over time and no longer will fit the valve covers.
     
  2. tfeverfred
    Joined: Nov 11, 2006
    Posts: 15,793

    tfeverfred
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    Are those hard to find? If not, just get new ones or make your own.
     
  3. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,409

    Rusty O'Toole
    Member

    You could try soaking them in hot water overnight. Sometimes they come back. Once they soften up they are good as new.
     
  4. baker53
    Joined: Jan 17, 2003
    Posts: 340

    baker53
    Member

    Thanks Rusty, I have them soaking in tap water now. Maybe I will have some success. The only pan I had large enough to soak them in was the lid of a plastic garbage can. I may try some heated water as you suggest. Thanks again.
     

  5. Jokester
    Joined: Jan 29, 2005
    Posts: 468

    Jokester
    Member

    Put them in the bathtub overnight with enough water to cover.

    .bjb
     
  6. gimpyshotrods
    Joined: May 20, 2009
    Posts: 17,899

    gimpyshotrods
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  7. baker53
    Joined: Jan 17, 2003
    Posts: 340

    baker53
    Member

  8. baker53
    Joined: Jan 17, 2003
    Posts: 340

    baker53
    Member

    Hot water did the trick. Thanks for the help...
     
  9. gimpyshotrods
    Joined: May 20, 2009
    Posts: 17,899

    gimpyshotrods
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  10. Ole don
    Joined: Dec 16, 2005
    Posts: 2,915

    Ole don
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    After some time in the bath tub, I like to glue the gaskets to the rocker cover, then spray the exposed side with WD 40, twice. They can be reused for years if not overtightened.
     
  11. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,409

    Rusty O'Toole
    Member

    Good tip. I stick them to the valve cover with silicone seal then press the valve cover on a flat surface like a piece of plate glass until it hardens. This gives a perfectly flat surface to seal.

    If you put a thin coating of grease or oil on the exposed side of the gasket it will not stick to the head.
     

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