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GS450T head gasket leak... any recommended sealer

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    GS450T head gasket leak... any recommended sealer

    Good morning GS team;

    I'm working on an GS450T. I've had the block and head decked, new gaskets. After a short time on cylinder started leaking when hot. It seems the head gasket didn't fully seal on 1 cylinder.

    I'll be rechecking flatness on both head and block.

    Since I'm tearing it back down to replace the head gasket I wanted to get advice on a head gasket sealer to help insure sealing.

    Thanks

    RR
    The GS toys:
    79 GS1000L 1st bike sold many moons ago...
    78 GS550
    81 GS650G The son's
    82 GS650GL parts bike
    85 GS700ES in progress
    85 gs700E parts bike
    82 GS1000GL in pieces
    80 GS1100L in progress

    #2
    Did you use OEM gaskets? Check torque on the nuts after a few heat cycles. Cheap aftermarket gaskets, particularly the base gasket, can crush down, resulting in torque fall off.

    The OEM gasket has sealer on it already.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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      #3
      I've used copper coat with good results when using cheap gaskets. However, as mentioned, torque recheck is always needed.
      Current:
      1993 ZX11 - 2nd build in progress
      1977 GS750 (710 is getting closer)
      1998 Kawasaki Voyager - selling
      1998 Chevy C2500
      1999 Rav4

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