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  1. #1

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    Sealing o.p.a.s. block offs

    Hi guys - i had some opas block offs fabricated at an engineering shop and am just trying to work out what might be the best way to seal them when i fit them - to cut some thin insertion rubber to size or marine silastic? - not sure if you can buy the seals seperately from riva[our just whole kit].


  2. #2
    Sayers's Avatar
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    Quote Originally Posted by dragobrat View Post
    Hi guys - i had some opas block offs fabricated at an engineering shop and am just trying to work out what might be the best way to seal them when i fit them - to cut some thin insertion rubber to size or marine silastic? - not sure if you can buy the seals seperately from riva[our just whole kit].
    The Riva BO's have a grove machined in them for the rubber O rings. Just use some sealant.

  3. #3
    MSRXP's Avatar
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    Put a bead of RTV Black Silicone around the edges and around the opening when you remove the opas. It should seal up nicely. No worries though. Oh, let it dry over night and you're good.

  4. #4

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    Thanks.I will use the marine grade silastic.

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