Intake Manifold Rubber O Ring.
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Thread: Intake Manifold Rubber O Ring.

  1. #1
    Senior Member cowboyjeff's Avatar
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    Intake Manifold Rubber O Ring.

    This is old news, but I think it might be good for some one, A couple Years a go I had a small leak in my Head Gasket on my 91 Tw, It was casing it to run lean, and that caused it to run very hot, I could smell it was hot, kind of a sweet smell. It was also causing the Manifold O ring to melt with in minutes of running it, especially at an idle.
    The Yamaha O rings were $4.99 apiece plus shipping. One Day just for the heck of it I stopped into a Hydraulic supply house to see if they had anything I could use well waiting for some to be shipped to me. They matched it up with a Red O ring that was chemical resistant and what was really cool made for hi heat. I don't think I could melt it with a torch.
    The reason I telling this is they would have just gave it to me but I wanted a few spares so they charged me a buck apiece. I don't have any part numbers, I wish I did.
    Peterb and Fred like this.

  2. #2
    Senior Member Fred's Avatar
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    This at least might help evaluate the materials available. https://www.sealingdevices.com/temperature-ranges
    Memorize it and you can amaze your friends at the next coctail party.
    Last edited by Fred; 04-23-2017 at 05:41 PM.
    cowboyjeff likes this.
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