Author [NL] [FR] [ES] [DE] [SE] [IT] Topic: Leak Question  (Read 2487 times)

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  • Offline pabramo

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    Offline pabramo

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    Leak Question
    on: Apr 10, 2019, 01.47 am
    Apr 10, 2019, 01.47 am
    I need help figuring out what this leak is.  I had my bike covered all winter in the shop.  I moved it once a few weeks ago by taking it off the center stand and rolling it a few feet out of the way.  An hour later I rolled it back to the original spot and left.  Yesterday I took the cover off to get it ready for the season and found these splashes on my tire, wheel, and final drive.  I imagine there was a leak and it splashed when I rolled the bike a few feet in the shop a few weeks ago.  At first I wondered if it might be final drive fluid but did not see any specific place it may have leaked from.





    Then I looked at the front and saw some drops on the tire and on the wheel, although a lot less than was in the rear.



    Now I am wondering if it is brake fluid?  With the ABS could that lead to a leak at front and rear brakes?  Again, I can't see an obvious place where it is coming from.  I did check the brake reservoirs and the front is full but the rear one is at the low line level.  I have applied the brakes rolling the bike in the shop and don't notice anything and have not found more fluid leaking out.  Any ideas about this would be very welcome.  I'm a rider but not much of a mechanic (but I'm willing to try things....)

  • Offline nert   us

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    Offline nert

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    Re: Leak Question
    Reply #1 on: Apr 10, 2019, 03.07 am
    Apr 10, 2019, 03.07 am
    You need to determine what the fluid is. Gear oil feels, oily and smooth when you rub it between your fingers. You can take the chrome plug out of the side of the differential and check the fluid level. (the plug is at about 3:00 on your first photo).
    Brake fluid run between your fingers will actually feel "dry". The viscosity of the fluid as it appears in the photos looks more like brake fluid than oil. Then smell the fluid, does it have an odor? Do you have cats, or maybe raccoons that took to cuddling up to your TT for a PP

  • Online Coconut   gb

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    Online Coconut

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    Re: Leak Question
    Reply #2 on: Apr 10, 2019, 07.58 am
    Apr 10, 2019, 07.58 am
    Looking at the Photo's, if the bike hasn't been ridden,
    and only pushed out of the garage then back in again,
    then I cant see how Final drive Oil would manage to get up to the Brake Caliper ?

    If the Caliper was leaking fluid from the pipe union, I don't think it would run down
    in the way the photo shows.

    I think nert may be on the right track - the way the fluid is distributed
    could easily have been caused by an animal cocking it's leg and "taking a leak" ( urinating ),
    over the bike while it was sitting outside the garage.

    If that IS the cause then it will dry out much quicker than Brake Fluid or Oil.

    Was there much of a puddle where the bike was parked ?

    Not sure about the front wheel, unless the animal took a quick spurt there first,
    or when moving the bike afterwards it was pushed through the puddle,
    and a few drops dripped down after parking back in the garage ?

    In any event, check the rear pad wear, and replace if needed,
    and / or top up the rear brake master cylinder - unless you have checked the master cylinder
    reservoir recently, such as "It was full yesterday and is now down to the minimum mark"
    you can't tell by that alone, if it is the source of the "leak".



     

    Last Edit: Jan 19, 2020, 05.05 pm by Coconut

  • Offline GarminDave   gb

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    Offline GarminDave

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    Re: Leak Question
    Reply #3 on: Apr 10, 2019, 09.54 am
    Apr 10, 2019, 09.54 am
    +1 for the animal PP!
    Love, light, and kindness,

    Dave

    2016 TTSE

  • Offline Traxx

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    Offline Traxx

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    Re: Leak Question
    Reply #4 on: Apr 10, 2019, 11.20 am
    Apr 10, 2019, 11.20 am
    Looks like a passing Pet did it or the brake line is loose judging from the pattern of fluids.
    Other wise clean the area with dawn dish washing soap and fill anything that is low. move it around and try to recreate what you did before the issue. 
    17 Tropy SE Phantom Black The FASTEST color
    TOH # 678
    IBA # 71308

  • Offline pabramo

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    Offline pabramo

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    Re: Leak Question
    Reply #5 on: Apr 10, 2019, 01.38 pm
    Apr 10, 2019, 01.38 pm
    Thanks for the thoughts!  I cleaned it all off yesterday to see if it reappears.  I do have a cat out in the shop....  Funny, I had my Bonneville parked next to the Trophy but this is only on the Trophy.  If it is the cat, then it must not like that bike for some reason.... :010:  I will see if I can recreate it.  Now you have me thinking I was wiping cat P between my fingers and smelling it.  I'm not sure how I feel about the direction this is taking.  :138:

  • Online Coconut   gb

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    Online Coconut

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    Re: Leak Question
    Reply #6 on: Apr 10, 2019, 02.08 pm
    Apr 10, 2019, 02.08 pm
    There’s a quick remedy if it was the cat .....  :178:   :164:

    Last Edit: Jan 19, 2020, 05.03 pm by Coconut

  • Offline pabramo

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    Offline pabramo

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    Re: Leak Question
    Reply #7 on: Apr 10, 2019, 02.28 pm
    Apr 10, 2019, 02.28 pm
    Maybe we need a new board on the forum for animal encounters.   I never did trust that cat.   :233: