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Thread: 08 RT Generator Belt Replacement Tips?

  1. #1
    Jeff cookie's Avatar
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    08 RT Generator Belt Replacement Tips?

    Sorry, I looked through the DIY Technical section and this topic is not in there. I searched without any luck.
    The dealer says changing the generator belt on a 2008 BMW R1200RT is a reason to use the Lord's name in vain.
    Could someone please guide me in the right direction. How, what special tools, can it be done?
    Thank you!
    Jeff Anderson
    I ride a 2008 R1200RT

  2. #2
    God? What god? roborider's Avatar
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    Do yourself a favor and get Jim Von Baden's CD, around $25. He has a video on the change (it is very easy, I did mine) and he does a complete service.

    You essentially have a guy bump the engine with the rear wheel while you walk the belt on, but the vid is best. Might find it on you tube, also.
    Last edited by roborider; 08-29-2013 at 12:59 AM.
    Rob C. , Raleigh, NC
    '05 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

  3. #3
    Registered User k12lts's Avatar
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    I changed the one on my 09 this year and it's no big deal. I put the belt on the top pulley and used a long crescent wrench on the bottom pulley to turn the engine over. If you are careful the wrench handle will press against the belt and walk it onto the bottom pulley as you turn the crank nut.

    It may take a few tries but it works. Always turn the engine clockwise and just put the transmission in neutral. No need to remove the spark plugs but it does let the engine turn over easier.

  4. #4
    kellenbenz kellenbenz's Avatar
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    Quote Originally Posted by cookie View Post
    Sorry, I looked through the DIY Technical section and this topic is not in there. I searched without any luck.
    The dealer says changing the generator belt on a 2008 BMW R1200RT is a reason to use the Lord's name in vain.
    Could someone please guide me in the right direction. How, what special tools, can it be done?
    Thank you!

    You might find this Youtube video helpful.

    http://www.youtube.com/watch?v=E2WwtypG0F4

    Ron
    IBA 45658 MOA167437
    535,000 miles on touring motorcycles

    Total BMW miles 297,000

  5. #5
    Registered User ANDYVH's Avatar
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    Um, just to save you any odd looks at the BMS parts desk, there is no "generator" on your bike. It's an alternator.
    Woodenshoe to Cheesehead

  6. #6
    Registered User wyman.winn's Avatar
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    Quote Originally Posted by kellenbenz View Post
    You might find this Youtube video helpful.

    http://www.youtube.com/watch?v=E2WwtypG0F4

    Ron
    too easy....hardest part looks like the R&R of the cover....LOL

    thanks,

    wyman
    2013 R1200RT - Sassy - Fluid Grey Metallic
    2002 V-Strom DL1000 - sold
    2008 KLR650 - sold

  7. #7
    God? What god? roborider's Avatar
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    That video clip is from Jim Von Baden's CD. If you like that, support the guy and get his most excellent CD.
    Rob C. , Raleigh, NC
    '05 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

  8. #8
    Survivor akbeemer's Avatar
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    If all the previous advice fails, then give this a try......
    Kevin Huddy
    Intrepid Incompetent
    Tm Pterodactyl MT Outpost

  9. #9
    Registered User wyman.winn's Avatar
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    Quote Originally Posted by roborider View Post
    That video clip is from Jim Von Baden's CD. If you like that, support the guy and get his most excellent CD.
    Rob,

    for the record, i DID purchase Jim's CD.....i try my VERY best to support those that support me an my endeavors...be they motorcycles, firearms, cycling or diving.....

    BTW, i have yet to fully watch all of Jim's videos....based on the alternator belt, i would bet that they all are excellent...

    wyman
    2013 R1200RT - Sassy - Fluid Grey Metallic
    2002 V-Strom DL1000 - sold
    2008 KLR650 - sold

  10. #10
    God? What god? roborider's Avatar
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    I was speaking to the original poster, but glad you bought it. It is excellent.

    That's one hell of a hat, Wyman!
    Rob C. , Raleigh, NC
    '05 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

  11. #11
    Registered User wyman.winn's Avatar
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    Quote Originally Posted by roborider View Post
    I was speaking to the original poster, but glad you bought it. It is excellent.

    That's one hell of a hat, Wyman!
    thanks Rob....it is a near perfect copy of the hat that John Wayne wore in "The Shootist".....100% beaver, Western Diamondback hatband.....

    wyman
    2013 R1200RT - Sassy - Fluid Grey Metallic
    2002 V-Strom DL1000 - sold
    2008 KLR650 - sold

  12. #12
    A bozo on the bus deilenberger's Avatar
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    One comment on "easy" belt changes on hexhead bikes. BMW changed the specification of the alternator belt sometime between when my bike was new, and when my bike was a few years old - and now. The new belt they specify is smaller, and thence MUCH tighter and harder to get on the two pulleys. There are a few tools made for the auto industry that are used to stretch and guide the belt onto the bottom pulley as the engine is turned. Trying to do the job without one of these is going to be frustrating. BTDT. Now own a tool.
    Don Eilenberger http://www.eilenberger.net
    Spring Lk Heights NJ NJ Shore BMW Riders New Sweden BMW Riders
    '07 R1200R (current ride) and some bimmers.. and a Porsche

  13. #13
    Jeff cookie's Avatar
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    Quote Originally Posted by ANDYVH View Post
    Um, just to save you any odd looks at the BMS parts desk, there is no "generator" on your bike. It's an alternator.
    Ah, you know that and I know that but BMW calls it a generator belt. If I started the thread with my alternator belt, I would have some guy say, ah you have a generator not an alternator.
    You can't win them all.
    Jeff Anderson
    I ride a 2008 R1200RT

  14. #14
    Jeff cookie's Avatar
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    Quote Originally Posted by deilenberger View Post
    One comment on "easy" belt changes on hexhead bikes. BMW changed the specification of the alternator belt sometime between when my bike was new, and when my bike was a few years old - and now. The new belt they specify is smaller, and thence MUCH tighter and harder to get on the two pulleys. There are a few tools made for the auto industry that are used to stretch and guide the belt onto the bottom pulley as the engine is turned. Trying to do the job without one of these is going to be frustrating. BTDT. Now own a tool.
    Thank you Don, we can always expect the facts when you chime in.
    Now all the rumors and stories make sense. People I talk to say they have seen the engine bump or the plastic sleeve method and can't understand how it is done because it does not go on that easily, period.
    If the belt is smaller and much more difficult I will do one of two things.
    The tool is going to be in my chest or the dealer will replace it.
    Jeff Anderson
    I ride a 2008 R1200RT

  15. #15
    Survivor akbeemer's Avatar
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    I've replaced two belts in the last four months; on my R1200R and a friends R1200RT. Used the bump method and it was easy. I think some folks may be trying it with their spark plugs still in.
    Kevin Huddy
    Intrepid Incompetent
    Tm Pterodactyl MT Outpost

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