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Thread: 12mm oil sump crush washer

  1. #1
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    Question 12mm oil sump crush washer

    Hi all

    Can you re-use a crush washer if you heat it to red heat and let it cool to room temp? Does that "re-inflate" it for want of a better word? cheers

  2. #2
    Senior Member 12mm oil sump crush washer
    12mm oil sump crush washer
    DirtFlier's Avatar
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    I've never done that but what I have done is use emery paper on a flat surface (such as steel plate) and rubbed it back-and-forth on each side. Often times the washer will have a raised ridge caused by the round portion of the drain bolt. The crush washer is made of soft alum so it only takes a few passes.

  3. #3
    Senior Member mtiberio's Avatar
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    just reuse it and relax.

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    Quote Originally Posted by grimp View Post
    Hi all

    Can you re-use a crush washer if you heat it to red heat and let it cool to room temp? Does that "re-inflate" it for want of a better word? cheers
    Seems like I remember reading about this when re-using an old two stroke COPPER head gasket. Not sure about doing it to Al-U-many-um washer....???

  5. #5
    Senior Member mtiberio's Avatar
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    copper and aluminum both behave the same and the opposite to ferrous (iron) alloys. With iron, you heat and let cool slowly to soften. With Cu and Al, you heat and quench (dip in water) to soften.

  6. #6
    Super Moderator 12mm oil sump crush washer 670cc's Avatar
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    Forgive me for my skepticism, but this is almost a troll’s question, especially for a first post. This general annealing topic is well covered on the Internet.
    Last edited by 670cc; 8th November 2017 at 05:57.
    Greg
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  7. #7
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    ^^^^^^^^agree..........don’t be surprised if we shut this down. It was hashed and rehashed here and dozen other forums.

  8. #8
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    Just buy some new ones if you are worried. I always re-use and never had a problem.

  9. #9
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    I like to put the washers in the oven at 450 degrees, bake for 4 hours.

    Can you re-use a crush washer if you heat it to red heat and let it cool to room temp? Does that "re-inflate" it for want of a better word? cheers[/QUOTE]

  10. #10
    Senior Member 12mm oil sump crush washer dduelin's Avatar
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    Flip it over at room temperature and reuse.
    Dave

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