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  • How important is silicone rubber for an aluminum V6 VCG?

    From Maria Sophia@mariasophia@comprehension.com to alt.home.repair,rec.autos.tech on Mon Mar 23 16:44:12 2026
    From Newsgroup: alt.home.repair

    My Toyota 3MZ-FE engine valve cover gasket rear bank is leaking.

    There's a Fel-Pro VS50588R copycat kit, which matches PN 11214-0A010, 11214-20030, 11213-0A010 & 11213-20030 (both banks & spark seals).

    But the material isn't stated, so I can assume it's a nitrile-butadiene
    rubber & not a vinyl methyl silicone (or they would said that it was).

    How important is silicone rubber for an aluminum V6 valve cover gasket?
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From Clare Snyder@clare@snyder.on.ca to alt.home.repair on Mon Mar 23 18:21:33 2026
    From Newsgroup: alt.home.repair

    On Mon, 23 Mar 2026 16:44:12 -0400, Maria Sophia <mariasophia@comprehension.com> wrote:

    My Toyota 3MZ-FE engine valve cover gasket rear bank is leaking.

    There's a Fel-Pro VS50588R copycat kit, which matches PN 11214-0A010, >11214-20030, 11213-0A010 & 11213-20030 (both banks & spark seals).

    But the material isn't stated, so I can assume it's a nitrile-butadiene >rubber & not a vinyl methyl silicone (or they would said that it was).

    How important is silicone rubber for an aluminum V6 valve cover gasket?
    The Felpro gasket is good to go if installed according to
    instructions. It is a "proprietary cork rubber" composition called
    "permadry" according to FelPro data. (and may actually be superior to
    the OEM for service use)
    In over 60 years I have never had issues with FelPro service gasket
    products (including over 12 years in Toyota dealerships)
    --- Synchronet 3.21f-Linux NewsLink 1.2
  • From frank@"frank "@frank.net to alt.home.repair,rec.autos.tech on Mon Mar 23 19:03:00 2026
    From Newsgroup: alt.home.repair

    On 3/23/2026 4:44 PM, Maria Sophia wrote:
    My Toyota 3MZ-FE engine valve cover gasket rear bank is leaking.

    There's a Fel-Pro VS50588R copycat kit, which matches PN 11214-0A010, 11214-20030, 11213-0A010 & 11213-20030 (both banks & spark seals).

    But the material isn't stated, so I can assume it's a nitrile-butadiene rubber & not a vinyl methyl silicone (or they would said that it was).

    How important is silicone rubber for an aluminum V6 valve cover gasket?

    Silicone is more resistant to higher temperatures and automotive fluids.
    --- Synchronet 3.21f-Linux NewsLink 1.2