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Thread: Final Drive Issue 2008 R1200RT

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    Registered User PaulWitt's Avatar
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    Final Drive Issue 2008 R1200RT

    2008 R1200RT with 32K miles.

    This evening after coming home on the bike, I noticed a growling noise from the rear. The rear tire is about 90% worn, but I also noticed the final drive was quite hot. I could still put my hand on it, but it seemed like maybe it was too hot. I don't have anything to judge that by. There appears to be no side to side play in the drive.
    Any thoughts?
    Paul Witt
    2008 R1200RT
    Greensboro, NC

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    sometimes a well worn tire can make an unusual noise especially if inflation press. is low. If you can hold your hand on the drive it's likely under 130 deg. f. I would change the oil and check the old oil for metal. good luck hope it turns out ok. the outboard seal went in my gs last summer on the way home from the MOA rally and it had me worried for a while but a new seal installed by the good dealer in Calgary and 20000 kilometers later still working great.
    Mike Lutes 89k75s, 05r1200gs

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    Survivor akbeemer's Avatar
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    Sounds like you are still under warranty so a visit to the dealer would seem wise. I have heard claims that the FD warranty is extended to 5 years.... hope that is true.
    Kevin Huddy
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    Polarbear Polarbear's Avatar
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    Tire likely;

    A really worn tire will growl loudly in curves, not so much if at all in the upright straights. My GSA1200 FD is hot too, just being able to keep my hand on it a few seconds. 180ccof oil in there isn't much oil, so its hotter than my Airhead FD with much more oil in it. I personally wish they had designed the FD to carry more oil, like the older ones! The synthetic oil can take the heat, however the bearings won't after about 300 degrees they are getting into trouble. The syn oils will go to 600-700, bearings NO. I think the FD is getting to 200+, not near 300. I speculate some and wish I had a temp gauge on my FD too. Randy

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    Polarbear Polarbear's Avatar
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    FD Heat question???

    Anybody know about these? I've heard about heat marker pens, crayons or the like, that you can mark the case and if/when the mark disappears, you know you've passed that heat level? The marker crayons come in various levels of heat ranges, SO if one were to mark his FD with a marker like this, one would know just how hot or nearly so it gets. I'm asking, do these still exist? Maybe a seasoned wrench out there knows this answer. Randy

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    Registered User nplenzick's Avatar
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    Just had my final drive rebuilt on my 07 with 25K. It didn't make any noise, it never got hot and there was no metal in the oil. My dealer found a certain amount of roughness in it when they were putting tires on my bike. I too felt the roughness once they took the rear tire off. When you spin the rotor you could feel it, couldn't feel it with the wheel on.
    The large bearing is a sealed one and is not lubricated by the gear oil. Take your wheel off and see if you can feel any roughness at all, you shouldn't feel any. It should feel just like the front wheel.

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    Registered User PaulWitt's Avatar
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    Thanks everyone.
    I'm going to put new tires on today and see what it feels like. I do feel a little roughness in the gears without the wheel on, so I may stop my the dealer anyways.
    Oh.......2 weeks out of warranty so I will test the 5 year thing mentioned above.
    Paul Witt
    2008 R1200RT
    Greensboro, NC

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    Old, Ugly, feet stink too
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    Quote Originally Posted by Polarbear View Post
    Anybody know about these? I've heard about heat marker pens, crayons or the like, that you can mark the case and if/when the mark disappears, you know you've passed that heat level? The marker crayons come in various levels of heat ranges, SO if one were to mark his FD with a marker like this, one would know just how hot or nearly so it gets. I'm asking, do these still exist? Maybe a seasoned wrench out there knows this answer. Randy
    Yessir, they are referred to as "temperature crayons" and are used quite extensively in large equipment manufacturing where pre-heating to a specific level is critical for the welding of differing types of steel. I am not sure just how much range is available in them, a welding supply house (good one) should be able to shed some light on that.

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    Outlander Omega Man's Avatar
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    Quote Originally Posted by Polarbear View Post
    Anybody know about these? I've heard about heat marker pens, crayons or the like, that you can mark the case and if/when the mark disappears, you know you've passed that heat level? The marker crayons come in various levels of heat ranges, SO if one were to mark his FD with a marker like this, one would know just how hot or nearly so it gets. I'm asking, do these still exist? Maybe a seasoned wrench out there knows this answer. Randy
    Hi Randy and all, a good way to check things like this is with a non-contact infrared thermometer. I'm a big fan of the Fluke brand but there are others.

    Some don't want to make the investment for what is considered an occasional use tool but it actually can be used quite a bit. An example would be checking the basement temps this past winter as it was a tough one. On the bike you can check side to side temps and even the temps of the heated hand grips. HTH Gary
    "Well they say.. time loves a hero but only time will tell.. If he's real, he's a legend from heaven If he ain't he was sent here from hell" Lowell George
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    Polarbear Polarbear's Avatar
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    Great:)

    I thought about these crayons and if they might work as a early warning mark on a FD? Seems if the FD was getting too hot, this would make a good warning, using a right temp crayon marker on the case, Thinking too much here. The bearing sealed was unknown to me too, not running in oil! I am about to embark on a 8000m+ journey this Saturday to the rally in PA, so I'm going out in the garage and doing some more checks on my GSA1200 FD right now. Thanks all. Randy

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    Polarbear Polarbear's Avatar
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    Thx:)

    That infra red temp pistol is neat too and probably expensive. I see'em used at all my large Costco accounts I service weekly. Wonder how hot they read? My stores use them for temping meats and dairy goods. Thanks, Randy

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    Registered User nplenzick's Avatar
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    Quote Originally Posted by PaulWitt View Post
    Thanks everyone.
    I'm going to put new tires on today and see what it feels like. I do feel a little roughness in the gears without the wheel on, so I may stop my the dealer anyways.
    Oh.......2 weeks out of warranty so I will test the 5 year thing mentioned above.
    You shouldn't feel any roughness what so ever. It should feel fluid just like the front wheel. I would strongly suggest bringing it to the dealer and getting their opinion.

  13. #13
    Motorcycleton
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    Quote Originally Posted by Polarbear View Post
    Anybody know about these? I've heard about heat marker pens, crayons or the like, that you can mark the case and if/when the mark disappears, you know you've passed that heat level? The marker crayons come in various levels of heat ranges...
    I use something called a TempilStik when disassembling airhead transmissions. The crayons are available in various colors that melt at specified temperatures.
    http://www.tempil.com/thumbnail.asp?cid=22

    McMaster-Carr has a similar generic temperature crayon.
    http://www.mcmaster.com/#temperature-crayons/=cxygvh

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    Registered User greenwald's Avatar
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    Cool

    Quote Originally Posted by PaulWitt View Post
    2008 R1200RT with 32K miles.

    This evening after coming home on the bike, I noticed a growling noise from the rear. The rear tire is about 90% worn, but I also noticed the final drive was quite hot. I could still put my hand on it, but it seemed like maybe it was too hot. I don't have anything to judge that by. There appears to be no side to side play in the drive.
    Any thoughts?
    My '05 RT exhibited 'growling' and a super-heated FD housing at 49,000 miles.

    FD had puked. $2,000 to replace. BMW simply offered up $500 in 'sympathy cash' and went on about their business.

    I wish you better luck.

    And no - warranty is till 3 yrs/36k.
    Kevin Greenwald - Touring Tips Editor
    Nationally Certified Law Enforcement Motor Officer (Ret.) / IBA Member #34281
    MSF RiderCoach # 121656 (BRC,SBRC,IS,IME,SMARTrainer)
    Motorcycle/Driving Instructor - ROAD AMERICA Race Track

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    Survivor akbeemer's Avatar
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    Quote Originally Posted by Greenwald View Post
    And no - warranty is till 3 yrs/36k.
    You have harshed my mellow......
    Kevin Huddy
    Intrepid Incompetent
    Tm Pterodactyl MT Outpost

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