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  • Offline Studley   ca

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    Offline Studley

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    Is my alternator failing?
    on: Sep 14, 2018, 05.49 am
    Sep 14, 2018, 05.49 am
    2015 Trophy SE
    New Battery 2 months ago
    Battery Terminals cleaned and connections tight and secure
    Readings:
    Static battery reading  ~ 12.6V to 13.0 before starting.
    After a cold start I get 14.6V at idle off battery terminals
    After the bike warms up I get ~13.5V at idle off battery terminals
    After the bike warms up I get ~13.5-13.7V at 3-4K RPM off battery
    After bike warms up, under load with most everything on [heated seat, grips, Aux lights, heated jacket, high beams, audio, radar detector] I get ~13.5 V at 3-4 KRPM

    Symptoms:
    Valentine One will re-initialize ~ every 3 minutes with the audible warning tones
    Clearwater [Darla's] running at 50% [on low beam]will pop / bright flash like they have just illuminated ~every 15-20 minutes.

    I believe my alternator is on the way out. I have extended warranty but I am getting the sense my dealer does not want to do the warranty work. His comment was if he saw those #'s on the bike while doing work he would not even mention it to me cause he does not consider it out of an acceptable range. I get the sense that as far as farkle symptoms, he believes I run too much stuff on the bike and does not concern himself with those issues.

    Thoughts, ideas suggestions welcome

    Thanks in advance
    Studley


  • Offline earthman   gb

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    Re: Is my alternator failing?
    Reply #1 on: Sep 14, 2018, 08.28 pm
    Sep 14, 2018, 08.28 pm
    Just had a quick look at the workshop manual, it mentions voltages of 13 to 15V at 2000rpm.

    I've just bought a mini volt meter funny enough, I plan on fitting it to the dash area of the bike, to keep an eye on the charging system whilst riding.

  • Offline Coconut   gb

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    Re: Is my alternator failing?
    Reply #2 on: Sep 14, 2018, 08.51 pm
    Sep 14, 2018, 08.51 pm
    Studley,

    Have a look at this Topic if you haven't seen it ....

    Headlight minor flicker - wiring loom issue?

    The "Flicker" was fixed by replacing the Battery cables with new ones !

    I'm wondering if this could explain your probllems too ?

    Cheers  :821:

    Last Edit: Feb 16, 2020, 09.15 pm by Coconut

  • Offline Studley   ca

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    Offline Studley

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    Re: Is my alternator failing?
    Reply #3 on: Sep 15, 2018, 05.05 pm
    Sep 15, 2018, 05.05 pm
    Hey Coconut, thanks for your thoughts on the issue. Something I had not considered. An excellent thread.

    I hate to be a lame ass but, can anyone assist me with the part # for the cables shown in the dwillcox post. I went to the triumph fiche but cannot make out the part / part# for the part shown. I will not be going with the main wiring harness but I think I'll go with the Ockham's razor approach outlined.

    Many thanks

    Studley

  • Offline Coconut   gb

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    Offline Coconut

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    Re: Is my alternator failing?
    Reply #4 on: Sep 15, 2018, 05.33 pm
    Sep 15, 2018, 05.33 pm
    No problem !

    The parts diagram isn’t the best, but it appears
    to be Part Number T2502504 - “Lead - Earth “
    and looks like it is both the Earth Cable,
    and the Positive cable from the Alternator
    to the Battery via the in line Main Fuseholder !


    Cheers  :821:




    Last Edit: Feb 16, 2020, 09.14 pm by Coconut

  • Offline Studley   ca

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    Offline Studley

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    Re: Is my alternator failing?
    Reply #5 on: Sep 16, 2018, 05.51 pm
    Sep 16, 2018, 05.51 pm
    Thanks again Coconut. Since I am off on one last ride this fall before winter this will become part of my to be done list in the Spring. I don't have enough time to mount tires and do the deep dive before I depart. I appreciate the support you provide to me and all the other riders on the forum.

    Thanks Again
    Studley

  • Offline Studley   ca

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    Offline Studley

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    Re: Is my alternator failing?
    Reply #6 on: Oct 05, 2018, 05.57 pm
    Oct 05, 2018, 05.57 pm
    Hey Coconut and others, thanks again for your continued support. I have not had time to do a deep dive to the ground point by the alternator. Talking with others I understand this is not an issue exclusive to Trophy's or Triumph. FJR's have apparently had a "Ground Spider" issue for some time. I understand some have solved this issue by wiring a secondary ground to the frame.

    I am interested in your opinion on this and where do you suggest is an easier location for a second ground cable that is not going to be to an aluminum member?

    Thanks

    Studley