Ridemalibu Motorcycle Rentals & Tours – Los Angeles CA
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Link to speedo sensor threads pls.

Discussion in 'Griso-Bella Chat & Tech' started by tleegt, Jun 29, 2009.

  1. tleegt

    tleegt Just got it firing!

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    Hi all. It's been about a year since I last posted. Had problems with login following a software change and I stopped coming. I'm back now under a new name and need your help.

    I'm currently on a tour of Eastern Canada and am bout 300km past the last Guzzi dealer and have most of the trip ahead of me still. I've now hit significant rain and it will stay with me for another 3-4 days.

    This morning I had that speedo problem that people seem to talk about a lot. It conked out. Both speedo and odos stopped working and the SERVICE light and display went on. The rain lightened a little bit about an hour later and the speedo came back on and stayed good for the remainder of the day today -- about 200 Km and mostly through a pretty tough rain and winds.

    Although it's good now I'm concerned about the rest of the trip. I can't fully dry it out because of the forecast and of course being on a tour, the bike will be parked outside most of the time.

    If I can find a bit of dryness, I was hoping to try to seal it. I can't find any of the threads though and I don't even know what to look for on the bike. Can someone point me to the thread or give me a brief description of what to do? I'm hoping that if I can take a hairdryer to something and seal it with a bit of electrical tape or something, it'll last me until I get backt (about 4000 km from now).

    Thanks!

    Tom
    Waterloo Canada, currently soaking wet in Rimouski Quebec.
     
  2. cyclobutch

    cyclobutch Cruisin' Guzzisti

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    If you are using hotels then put the shower cap that they provide over the clocks each time you park.
     
  3. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    Tom, I'm pretty sure most of that info is currently hiding in a back up copy of the old (crashed) Forum.

    Hopefully they'll speak up again here.
     
  4. YBFAST

    YBFAST Cruisin' Guzzisti

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    The short & sweet answer:
    The speedo & odo are driven by the input sent from the sensor mounted at the rear wheel between the CARC and the brake disc. From what I've experienced, the most vulnerable portion to water infiltration is right where the wire enters the small square sensor. The gap around the wire funnels water right into the sensor body, shorting out or interfering with the signal. If on the road and needing an emergency repair... you May be able to adequately spray that area with a moisture repelling spray that's safe for electrical connections (like WD40), wipe it off throughly and then seal it with a dab of RTV or even nail polish so you can finish your trip.

    Remove when back home with a small torx bit and clean & seal better. an epoxy sealant will make for a more permanent repair.

    Good luck:)

    PS if needed, I've been carrying a spare for over a year... let me know if you need it shipped out somewhere in a hurry
     
  5. tleegt

    tleegt Just got it firing!

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    Hey thanks for the addvice. Sorry for not replying earlier. Internet access has been bad. Since the fault, i haven't had a real overnight soaking. Managed to find sheltered parking or the rain hasn't been bad enough. Haven't seen the problem again and the weather is looking better for the final 3 days of my trip.

    Tom.
     
  6. kampe

    kampe Cruisin' Guzzisti

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    When i reporteded the same problem to my moto guzzi dealer he told me that only the guzzi's with spoke wheels (griso SE, bellagio and stelvio) where having these problems and they where seaching for a solution. Apperently the casted wheel are no better of then?
     
  7. Brian UK

    Brian UK GT Reference

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    It affects all the recent non ABS models, including the 750s.
     
  8. YBFAST

    YBFAST Cruisin' Guzzisti

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    kampe wrote:
    I believe there certainly might be problems with picking up signal with the spoked wheels, but we've been able to observe / document moisture damage in the sensors by dismantling, and repairing same with new epoxy etc.
    IMHO The problem in other Grisos etc. is not the wheel, but the poorly sealed sensor being used. The sensor performs as planned... its just not adequately sealed to keep working that way:unsure:
     
  9. speedcraft

    speedcraft Tuned and Synch'ed

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    I just had the same issue on '07 griso.....in the middle of the woods (northern Central PA). Spent a few hundred miles on very wet roads and lost the Speed sensor. It dried out after a couple of hours warm/dry running and I hit it with some clear coat nail polish...interesting way to start a conversation with a bar maid.......

    It did not cut out on the 500 miles back.....

    rdl
     
  10. kampe

    kampe Cruisin' Guzzisti

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    ;) Well, I'll be shure to seal the new sensor (warrenty replacement) with some silicone or somthing other weather resistend. Does anybody have experience with sealent that will keep the moisture out?
     
  11. YBFAST

    YBFAST Cruisin' Guzzisti

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    I've tried a variety of common sealants (RTV etc) that worked for up to a few months before peeling or breaking down.
    Another poster re-potted some old sensors with an epoxy mix made for electronics. I've had one of his on for over 10,000 miles without failure:)
    I would use epoxy if I were to do it again. If your local auto parts dealer doesn't stock a flexible epoxy, I would guess checking Radio Shack would be a likely source. I've seen it on-line in those handy little double nozzled syringe applicators... should be an easy fix;)
     
  12. Steve uk

    Steve uk Tuned and Synch'ed

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    How do Gents :)

    You mean to tell me, they've still not fixed the speedo problem yet?


    ATB

    Steve
     
  13. Gary

    Gary Cruisin' Guzzisti

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    Err no, my dealer recons they bought 20,000 Spanish sensors at a knock down price so until they're all gone....................................
     
  14. YBFAST

    YBFAST Cruisin' Guzzisti

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    Steve uk wrote:
    Hey Steve

    Your epoxied repair is flawless! :)

    It's forced me to find new things to b*tch about :laugh:
     
  15. Steve uk

    Steve uk Tuned and Synch'ed

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    Hey Adrian! :)

    I'm really glad to hear your sensor is still behaving.

    Ain't that always the way ;) :lol:

    It's quite strange, I still miss the 1100...If I were to come across it again, I'd be hard pressed not to buy it back. Mind you..I can't fault the Triumph, guess the Guzzi would be another to be added to fleet, ;)


    Before I forget..I was having a sort out on the pc the other day, found the article I wrote. If anyone wants it, feel free to give me a shout and I'll post it up again. Someone might find a use for it...

    Take it easy,

    Steve
     
  16. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    Steve, yes please... repost it. If you have any problems, let me know direct.
     
  17. Steve uk

    Steve uk Tuned and Synch'ed

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    Todd,

    No worries,I'll pop it in the email to you.

    Cheers,

    S
     
  18. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    Got it Steve, thanks again! Now posted in the main section HERE.
     
  19. Steve uk

    Steve uk Tuned and Synch'ed

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    Cool, thanks for the mail Todd.

    I was just saying to Todd on the email, sounds like I might have had a call from what sounded like MG, the girl was wanting to know what I thought of the quality of the new bike I purchsed... :laugh:

    My wife had answered, saying that I was at work, best she speak to me...So I may well be getting a call tomorrow.

    Cheers,

    S
     

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