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Thread: Diagnosing the leak

  1. #1
    Senior Member Diagnosing the leak StratTuner's Avatar
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    Diagnosing the leak

    I've put quite a few miles on my 2012 NC, and I found my first "leak" today.

    In the closeup (2nd photo), you can see the spark plug cover in the upper left corner...that may help orient the astute eye.

    Anyone want to take a guess at what device is leaking? After it's repaired, I can post the actual reason.... once I do some business with my favorite local mechanic. (I should be able to post a definitive answer within the week.)

    hint..the drops are blue in color...so it's coolant....but from where?

    Diagnosing the leak-20170704_142714-jpg

    and now the close up..
    Diagnosing the leak-20170704_142819-jpg
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
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  2. #2
    Senior Member Diagnosing the leak dduelin's Avatar
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    The leak appears to be from the water pump weep hole. The seal that can leak is not replaceable so a new pump assembly would be the fix if it is that seal that is leaking.
    Dave

    ST1300
    NC700XD
    CH80



  3. #3
    Member Diagnosing the leak
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    Not uncommon on higher mileage NC's. There are a few threads on it you can search.

  4. #4
    Senior Member Diagnosing the leak StratTuner's Avatar
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    Quote Originally Posted by summitx View Post
    Not uncommon on higher mileage NC's. There are a few threads on it you can search.
    And what do these threads conclude generally?
    Does each instance usually require a new water pump?
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

  5. #5
    Senior Member rippin209's Avatar
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    Quote Originally Posted by StratTuner View Post
    And what do these threads conclude generally?
    Does each instance usually require a new water pump?
    Yes almost always needs a new water pump, if it's leaking from the weep hole then it defiantly needs a new pump. The only one I can think of that got fixed with a new water pump gasket was because the shop had just replaced the pump and didn't put it together properly. I think the reference about another thread was just to point out that it is a part to wear out with mileage. (One of the few) I've seen the same with gold wings, other then the things that you think of right away such as tires, chains and brakes etc etc it's a part that does wear out
    Last edited by rippin209; 4th July 2017 at 22:57.

  6. #6
    Senior Member Diagnosing the leak
    Diagnosing the leak
    DirtFlier's Avatar
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    My other bike is an 2010 NT700V and I had to replace the water pump at around 55k miles. Yup, it had developed a leak at the weep hole.
    Last edited by DirtFlier; 5th July 2017 at 02:34.

  7. #7
    Senior Member Griff's Avatar
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    Interestingly the seals can be replaced individually on my CRF250L. I am curious as to why the same cannot be applied to the NC, another Honda ?
    It's never too late to have a happy childhood.

  8. #8
    Senior Member
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    Quote Originally Posted by Griff View Post
    Interestingly the seals can be replaced individually on my CRF250L. I am curious as to why the same cannot be applied to the NC, another Honda ?
    Honda R&D and development is done in many locations around the world, and it's likely the two engines were designed by different teams in different locations.

  9. #9
    Senior Member Diagnosing the leak StratTuner's Avatar
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    Quote Originally Posted by rippin209 View Post
    Yes almost always needs a new water pump, if it's leaking from the weep hole then it defiantly needs a new pump.
    Thank you. Experience like that is invaluable. I will start shopping for one today.

    Does anyone have a favored supplier? Who should I order from? (Ebay seems risky)
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

  10. #10
    Senior Member Diagnosing the leak StratTuner's Avatar
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    and the mechanic says....

    there's a kit to replace all the water pump seals (says the mechanic)
    At > 100,000 miles it's also time to replace all the hoses and the thermostat.

    Grand Total = $650. (Sigh...)

    Probably a good time to park the NC under a tarp for 6 months...(take about that long to save up.), but at least I'll have something to look forward to.
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

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