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Thread: Aluminum Crush Washers for Oil Changes

  1. #1
    apriliaforum Member tgodon13's Avatar
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    Aluminum Crush Washers for Oil Changes

    I went in search of an alternative to the rather pricey aluminium crush washers that are needed for our frequent SXV oil changes....

    Check out eEuroparts.com...I got 24 of them for $10.75 including shipping. They are only 24 cents each instead of paying $2.85 each.

    https://www.eeuroparts.com/Parts/539...RoC3iIQAvD_BwE

    Click image for larger version. 

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  2. #2
    apriliaforum expert SXVINWA's Avatar
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    I have switched to copper washers on most of my drain and pressure switches. They can be reused many times and aren’t subject to the galling that the aluminum washers seem to get when torquing.

  3. #3
    apriliaforum Member tgodon13's Avatar
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    Quote Originally Posted by SXVINWA View Post
    I have switched to copper washers on most of my drain and pressure switches. They can be reused many times and aren’t subject to the galling that the aluminum washers seem to get when torquing.
    Good info. I'll do it after the 8 oil changes I have enough for!!!!!
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    apriliaforum expert Britt's Avatar
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    Good info!
    2009 Aprilia RXV 450
    2014 Yamaha Super Tenere ES
    Previous Aprilia's: 2002 Caponord : 2001 Falco

  5. #5
    apriliaforum Junkie MaK's Avatar
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    You can get a set of 100 pieces of washer (alloy or copper) from e.ay etc., like the ones in the picture above with the same diameter if you look in the car section etc. . Cheap alternative.
    I got mine (copper) ~ 2 years ago from the big auction platform and there are still > than 2/3 of them left. They are very durable.

  6. #6
    apriliaforum expert daws's Avatar
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    I use a car crush washer of the same size, the package states that they fit BMW, Mercedes, Nissan and various models of Ford Falcon I got a big pack for next to nothing from my local auto suppliers.


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  7. #7
    apriliaforum Junkie freedomgli's Avatar
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    +1 buy in bulk for $10 from Amazon or eBay. I prefer copper, but to each his own.

  8. #8
    apriliaforum Junkie
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    Copper is nice to work with. Just be careful with the reuse of copper sealing washers, they work harden pretty quickly (first or second use) and then don't crush and seal as well as they did originally. One can heat a copper washer to a very faint, subtle orange glow (as seen under low light) and then let it cool naturally (don't quench). That process will soften it up again for reuse. I've done this with good results on diesel injector sealing washers that have to hold fairly high peak cylinder pressures.

  9. #9
    apriliaforum expert SXVINWA's Avatar
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    I actually find that quenching leaves the copper super soft. Copper does not harden the same way as steel.

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    apriliaforum Junkie
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    Quote Originally Posted by SXVINWA View Post
    I actually find that quenching leaves the copper super soft. Copper does not harden the same way as steel.
    Right, very good point. Ferrous metals need to be quenched as part of the annealing process but copper and brass anneal well either way; let them cool slowly or quench in water or oil. If one cares about the look of the copper, Borax can be added to the quench water and it will take care of a lot of the dark / black oxides.

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  12. #12
    apriliaforum Junkie rollracer's Avatar
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    any idea about the exact size?

    in the first post i'm reading 12X18X15mm thick?

    would order a bunch since bike's drain plugs are pretty much one size fit all....


    are those would be correct? i see they're 12X17X1.5mm thick.....instead of 12X18X15......

    https://www.amazon.ca/Copper-Washer-.../dp/B01FTLMLO2

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