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Thread: 1150 Cylinder Base Sealant Q

  1. #1
    Registered User mneblett's Avatar
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    1150 Cylinder Base Sealant Q

    I'm going to pull the left cylinder off an '04 R1150RT-P engine to address a small leak/spreading grime issue at the upper part of the front surface of the cylinder base.

    I've been doing a bit of searching to see whether Yamabond is the sealant of choice, but haven't hit on an answer.

    So, a little help here/input on the current sealant recommendation, please?

    Thanx,
    Mark Neblett
    Fairfax, VA
    #32806

  2. #2
    Benchwrenching PGlaves's Avatar
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    Quote Originally Posted by mneblett View Post
    I'm going to pull the left cylinder off an '04 R1150RT-P engine to address a small leak/spreading grime issue at the upper part of the front surface of the cylinder base.

    I've been doing a bit of searching to see whether Yamabond is the sealant of choice, but haven't hit on an answer.

    So, a little help here/input on the current sealant recommendation, please?

    Thanx,
    What I have used most recently was Permatex brand Ultra Gray. It is available in many auto parts stores. It is marketed as suitable for aluminum block engines, particularly water pump and oil pump gasketless metal-to-metal seams.

    I have also used Yamabond 4 previously.

    My opinion is that any non-acidic sealant designed for aluminum that is suitable for petroleum products will work OK.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://www.bigbend.net/users/glaves

  3. #3
    Registered User mneblett's Avatar
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    Thanks, Paul.

    The Ultra Gray is what I used on my last couple airhead cylinder jobs; just wasn't sure whether anything better had come along in the last couple years for the oil/hexheads. I actually found it easier to work with than ThreeBond, so unless I hear something else in this thread, that's the way I'll go on this motor.
    Mark Neblett
    Fairfax, VA
    #32806

  4. #4
    Rally Rat
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    Ultra gray good.

    "The Right Stuff" by permatex is similar. Rubberized silicone for High temp

    David

  5. #5
    Pepperfool GSAddict's Avatar
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    All I have ever used is the Permatex Ultra Blue #77BR.
    1150 engine & transmission
    All kinds of bikes and car engines as well
    Never an issue.
    http://www.permatex.com/products/pro...t-maker-detail
    Last edited by GSAddict; 12-13-2012 at 06:47 AM.
    '
    Ufda happens..........

    It's all about the details.

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