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Thread: Does the Valve Cover Gasket need to be sealed?

  1. #1
    Join Date
    May 2008
    Location
    Enumclaw, WA
    Posts
    103

    Default Does the Valve Cover Gasket need to be sealed?

    Hello,
    This weekend I am replacing my valve cover gaskets, and I was reading the service document on how to do it. The document said something about using a small bead of some sort of silicon sealing compound at a few locations. Has anyone else done this or can I get by without it, mostly because Idont know what would be the american equivilant to the compound.

    Captain Dan
    1995 530i
    1977 530i

  2. #2
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    I use the spray tack gasket stuff by permatex, I like spray painting things. Never had a leak yet, I dont like silicone cause things can slip.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  3. #3
    Join Date
    Mar 2007
    Location
    Liverpool UK
    Posts
    1,536

    Default

    I used only the gasket when I done mine a while back and it's been sound since. M30 though, not sure if it's the same deal...
    1995 XJR: 4.0L S/charged straight 6 Auto

    What... It's not broken??? I can still fix it

  4. #4
    Join Date
    Jan 2004
    Posts
    158

    Default

    I did it about a year and a half ago as described in bentley to tack sealer at a few spots on valve gasket for my 95 530 M60. That was 18K miles ago. No leaks so far.

  5. #5
    Join Date
    Jan 2007
    Location
    Dayton Ohio
    Posts
    1,483

    Default

    A couple months ago I bought a gasket that already had a bead of sealer on one side. I placed the sealer side down and did not add any sealer to the upper half of the gasket. Have not detected any leaks.

  6. #6
    Join Date
    Oct 2004
    Location
    Honolulu
    Posts
    3,105

    Default

    You need a little sealer at the points where the cam plugs are.

    Just a little permatex non hardening gasket sealer any where you have cam plugs, front cover mating points or vertical jogs on the gasket profile.


    Vee ave vays of dealing vid your kind...........

  7. #7
    Join Date
    May 2008
    Location
    Enumclaw, WA
    Posts
    103

    Default

    Alright, thanks for all the replys. Going to Schucks today to get some permatex.

    Captain Dan
    1995 530i
    1977 530i

  8. #8
    Join Date
    Aug 2008
    Location
    Pennsylvania
    Posts
    206

    Default

    M30 gasket is not rubber and is completely flat. If I were to use sealant it would be on the corners where to parts join together. M30 gaskets are completely flat unlike the M50 and M60 gaskets that are rubber and have a dip for the cams.

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