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Thread: Coolant Flush

  1. #1
    Join Date
    May 2010
    Location
    Florida
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    Default Coolant Flush

    Greetings!

    I've searched, and can't find anything about doing a coolant flush on my 851. The bike is in my office, so need to be careful about spilling coolant. Can I do it with a Mity Vac fluid extractor, or is there a single bolt that comes out to drain the system?

    The bike is pickled, so I can't run the engine, which is another curve.

    Thanks!
    Last edited by Seadweller; 02-22-2021 at 03:14 PM.

  2. #2
    Join Date
    May 2010
    Location
    Florida
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    Default

    Ducati didn't use the infamous "lifetime" coolant, did they? Certainly someone has done a coolant change.

  3. #3
    Join Date
    Jan 2008
    Location
    Central Scotland
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    Default

    Single drain bolt on the water pump cover, and a bucket underneath usually does the job.

  4. #4
    Join Date
    May 2010
    Location
    Florida
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    Default

    Thanks...I've read about issues with air pockets in the rear cylinder, but I guess that can be addressed when I bring back the bike to running condition.

    Is AGIP the best to use?

  5. #5
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    Jun 2007
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    Bris Vegas
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    Default

    There is a bleed screw on the rear cylinder water manifold.
    Griff
    To infinity and.......

  6. #6
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    May 2010
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    Default

    Quote Originally Posted by griff851 View Post
    There is a bleed screw on the rear cylinder water manifold.
    Awesome! Just looked and see it on the fitting. I'm highly considering the reverse fill method using a pump sprayer through the lower drain bolt to lift air out of the system naturally.

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