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Cam Angle Sensor Question

Discussion in 'V7/V85/V9 Chat & Tech' started by DETRoadster, Apr 11, 2019.

  1. DETRoadster

    DETRoadster Tuned and Synch'ed GT Site Contributor!

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    Hi Everyone!

    So I recently replaced my cam angle sensor on my 2014 V7 Racer. When I removed the sensor I noticed 2 things:

    1) It's in an area of the engine that's bathed in oil, yet it had no gasket or other means of sealing the sensor.

    2) When looking at the machined portion of the engine that the sensor mates to, it sure looks like there's a lip in there for an O-Ring to seat into. No O-ring present on my bike.

    I looked at the parts manual for my bike and there's an image of what looks like an O-Ring as part of the cam angle sensor assembly, however it's called out as a "hose clamp." Part number is GU49609601 in case anyone is interested.

    Can anyone tell me if there is indeed supposed to be an O-Ring that seals the connection between the cam angle sensor and the engine block? Thanks!
     
  2. Kevin.NZ

    Kevin.NZ Cruisin' Guzzisti

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    On my Breva there are a couple of shims and a small "O" ring that sits in the machined/recess of the block
     
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  3. V700Steve

    V700Steve High Miler GT Contributor

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    The oring for phase sensor is GU90706141 and they show no shims and call it a Encoder Sensor, but there is an oring.

    It's on wiring electrical drawing 1

    The earlier one has shims and looks like they are called hose clamps, 2 part #'s thin & thick
    Check your sensor for shims, 2015 w/alt in oil has no shims and is different sensor part number
     
    Last edited: Apr 11, 2019
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  4. DETRoadster

    DETRoadster Tuned and Synch'ed GT Site Contributor!

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    Thanks! I knew there should be one in there. Begs the question, what happened to mine?! Yikes!
     
  5. DETRoadster

    DETRoadster Tuned and Synch'ed GT Site Contributor!

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    Yeah, I saw GU90706141 on the drawing. it's in line with the bolt, which is called out as a washer on the parts list. Anyway, based on scale it looked very small and I assumed it must be an o-ring that's intended to go under the head of the bolt. So if GU90706141 is the O-ring I'm after, what do you think GU49609601 is?

    Both parts are like $3 so I'll probably just order both and see what shows up.
     
  6. V700Steve

    V700Steve High Miler GT Contributor

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    Orings & seals part #'s start w/ 9070
     
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  7. V700Steve

    V700Steve High Miler GT Contributor

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    Those are the shims, they screwed up the drawing.
     
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  8. Wisconsin v7 Racer

    Wisconsin v7 Racer Cruisin' Guzzisti

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    If it's a normal o-ring I would just go to the hardware store plumbing section and buy one that fits.
     
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  9. vagrant

    vagrant High Miler GT Contributor

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    This is interesting. On my 1998 and the 01 EV's I checked the sensors on a regular basis because they picked up swaph for the first 20000 miles or so. I never thought to look at either of the V7's yet at 12000 and 9500 miles. Should I?
     
  10. sib

    sib Cruisin' Guzzisti

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    Part GU90706141 is a 17.8 x 1.8 mm O-ring. The part number has been updated to 847180.
    Part number GU49609601 is a black plastic zip tie, 92 x 2.4 mm.
    No shim washers are shown in the latest parts manual for the V7II, but I've read somewhere that 1 or 2 may be installed between the sensor and the O-ring. They're probably fitted individually to each motor, depending on variations in the casting, to create a consistent space between the sensor and the timing wheel. Although the spacers aren't shown in the parts manual, in the the service manual, under re-installing the sensor, there is the sentence " Place the sensor plus the corresponding spacers; the air gap should be between 0.7 and 0.9 mm"
     
    Last edited: Apr 12, 2019
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  11. V700Steve

    V700Steve High Miler GT Contributor

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    If you want to know, I'd look & clean. OR wait till an issue occurs.
     
  12. DETRoadster

    DETRoadster Tuned and Synch'ed GT Site Contributor!

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    Brilliant! That's great information, Steve. Thank you!
     
  13. DETRoadster

    DETRoadster Tuned and Synch'ed GT Site Contributor!

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    Normally I would. But I've got a cart already put together with some gaskets, oil change kit, etc. so it's nothing to drop the o-ring in too as it's in stock. If this was July and I was missing out on riding days I'd 100% do as you suggest. Given that it's April, in Seattle, and we wont see a day without rain for about 2 months.....I can wait.
     
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  14. DETRoadster

    DETRoadster Tuned and Synch'ed GT Site Contributor!

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    Got it. That all makes sense now.

    Thanks everyone!!!
     
  15. V700Steve

    V700Steve High Miler GT Contributor

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    Yes, Yes, Yes, Like He says measure for factory spec & do as needed to correct gap. Sometimes you have to read more than 1 book. Main goal is to have the correct gap
     

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