Side head gasket
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Thread: Side head gasket

  1. #1
    Senior Member jannaruto's Avatar
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    Side head gasket

    Guys

    The side head gasket, the one where inside you see the gear and the timing chain on top of the head of engine
    The code is 93211-05471-00 right?
    What are the specs of this if I don't want a Yamaha official one? What I need to tell to a general bike shop and parts?
    Ken likes this.

  2. #2
    Senior Member elime's Avatar
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    Its a big o-ring. I had trouble finding one but I did find one that was a little to small. It stretched like a rubber band and fit in the groove and works like a charm.

    The groove the o-ring goes in is 4.25" in diameter. The thickness of the o-ring is about 1/8", or just a teeny bit less but I bet 1/8" will work fine.

    I use o-ring number: 2-155 N-70 It is a little small and has to be stretched on but it works just fine. It was the biggest one the place I went to had so I was stuck but it was cheap and I got it right then and there -- no waiting.

    Try Graingers.

    P4110039.JPG
    P4110040.JPGP4110041.JPG
    Last edited by elime; 10-18-2017 at 12:35 PM.
    littletommy, admiral, Ken and 2 others like this.
    Long live the internal combustion engine!

  3. #3
    Senior Member jannaruto's Avatar
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    Quote Originally Posted by elime View Post
    Its a big o-ring. I had trouble finding one but I did find one that was a little to small. It stretched like a rubber band and fit in the groove and works like a charm.

    The groove the o-ring goes in is 4.25" in diameter. The thickness of the o-ring is about 1/8", or just a teeny bit less but I bet 1/8" will work fine.

    I use o-ring number: 2-155 N-70 It is a little small and has to be stretched on but it works just fine. It was the biggest one the place I went to had so I was stuck but it was cheap and I got it right then and there -- no waiting.

    Try Graingers.

    P4110039.JPG
    P4110040.JPGP4110041.JPG
    Brother any possible info in millimiters?
    I guess rubber is 108mm diameter and 3mm thickness?

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  5. #4
    Senior Member grewen's Avatar
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    take the cover to the store with you
    littletommy and elime like this.
    Greg

    2019 honda cb500x
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  6. #5
    Senior Member jannaruto's Avatar
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    Quote Originally Posted by grewen View Post
    take the cover to the store with you
    Not so easy when most of your friends and dad are working... XD that's why I usually go by myself since I work in different hours of the day

  7. #6
    Senior Member elime's Avatar
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    Quote Originally Posted by jannaruto View Post
    Brother any possible info in millimiters?
    I guess rubber is 108mm diameter and 3mm thickness?
    When you take the cover off you can measure the diameter.

    The thickness of the o-ring is just about 3mm. When you put the new o-ring in the groove you want it sticking up a little bit so when you tighten the bolts the rubber is compressed. Once you have a compressed o-ring and metal to metal contact, cover on the head, just a teeny tiny bit tight is all you need. DON'T over tighten the bolts or you will strip the threads in the head. It doesn't have to be very tight and it will stay in place.

    P4110038.JPG
    Peterb, Dryden-Tdub and ejfranz like this.
    Long live the internal combustion engine!

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