Which Washer?

Discussion in 'Technical Help' started by topbanana0, May 2, 2019.

  1. topbanana0

    topbanana0 Well-Known Member

    Mar 27, 2016
    226
    93
    South Wales
    #1 topbanana0, May 2, 2019
    doing a coolant change on my speed triple, I've got a load of copper washers, and want to replace the coolant drain plug washer with one if these.
    It looks like the original washer is alloy, would this matter? Chemical reaction to the metal of the engine block maybe?
     
  2. Yorkshireman

    Yorkshireman Crème de la Crème

    Dec 12, 2015
    3,403
    1,000
    Barnsley
    #2 Yorkshireman, May 2, 2019
    I put a small copper one on mine, no problem, seals up just fine.
     
  3. freck

    freck Elite Member

    May 4, 2017
    1,721
    750
    Preston, Lancs, UK
    #3 freck, May 2, 2019
    The coolant drain plug on my Daytona is copper. This is from the factory.
    I’m pretty sure of this as the head gasket kit I’m currently fitting comes with a replacement copper washer.
    I think alloy washers are used as they can be used a couple of times without replacement whereas a copper one should be changed after each use.
     
  4. topbanana0

    topbanana0 Well-Known Member

    Mar 27, 2016
    226
    93
    South Wales
    #4 topbanana0, May 2, 2019
    Cheers guys
     
    • Cheers Cheers x 1
  5. Sprinter

    Sprinter Kinigit

    Aug 17, 2014
    5,995
    1,000
    uk
    #5 Sprinter, May 2, 2019
    Not that I've heard of.
     
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