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Thread: elast alternator belt

  1. #1
    motorcycle cowboy Tennessean's Avatar
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    elast alternator belt

    So who has replaced the newer elast alt. belt without using the tool that BMW techs use? There is much info archived here but not much in the way of a successful replacement. My bike has 40k on it and the belt really looks good, no cracks or anything. Wondering if I should let it go for a bit.
    2013 Goldwing

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    Quote Originally Posted by 2bikemike View Post
    My bike has 40k on it and the belt really looks good, no cracks or anything. Wondering if I should let it go for a bit.
    What is the service recommendation? Typically it is better to do it sooner rather than later...

    http://www.r1200gs.info/howto/alt-belt.html
    Dick
    R1200GS '08
    "Hey, where you goin'?" "Nowhere in particular." "Man, I wish I was you." "Well, Hang in there..."

  3. #3
    Registered User rebake's Avatar
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    Replaced the one on my 05gs at 60 thousand miles.I used one of the holes in the pulley with an allen wrench stuck in it.Saw the video online that showed how easy it was.(Maybe on adv rider?) Ed
    Ed Baker

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    Registered User NavyDad's Avatar
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    Changed the belt on my 04 RT in June. I didn't have any "special" tools. I don't see what the big deal is. I have put 5K on the bike since with no issues.

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    Quote Originally Posted by rebake View Post
    ...Saw the video online that showed how easy it was
    http://www.youtube.com/watch?v=YzPTPN98x40
    Dick
    R1200GS '08
    "Hey, where you goin'?" "Nowhere in particular." "Man, I wish I was you." "Well, Hang in there..."

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    motorcycle cowboy Tennessean's Avatar
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    Quote Originally Posted by rebake View Post
    Replaced the one on my 05gs at 60 thousand miles.I used one of the holes in the pulley with an allen wrench stuck in it.Saw the video online that showed how easy it was.(Maybe on adv rider?) Ed
    Yeah that looks pretty easy. However, the elast belt is a bit shorter than the one in that video. Do a search for elast, read all about it.
    2013 Goldwing

  7. #7
    MOA #24991 Pauls1150's Avatar
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    The recommended service interval is 36,000 miles.

    You might not see the accrued aging - cracking can happen on the INSIDE of the belt - after all, that's what rides against the pulleys. Last time I did mine ('04 1150RT, at about 40K), it looked just fine on the outside...

    But once it was off, I discovered that one of the "ribs" was starting to separate longitudinally (in the same direction as the ribs). No way to see that while it was mounted up.

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    Registered User lkchris's Avatar
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    Kent Christensen
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    Quote Originally Posted by lkchris View Post
    Except: if you have the "older bike" with the poly belt, not the newer elast version, is it OK (or advantageous???) to use the properly installed new version instead-or vice versa?

    Or, simply put, do you install the belt that came on that machine?

  10. #10
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    IIRC, the original older belts were replaced with a newer version of the poly-v, which entailed replacing the pulleys. This is the belt with the 36K replacement interval. If I understand your question correctly, I'd stick with the newer poly-v for that machine, instead of trying to upgrade to the elast. Just my $0.02
    Conrad Long
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    '94 R1100RSA
    '96 R1100RT

  11. #11
    Registered User lkchris's Avatar
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    Use the belt designed for your bike.

    You don't have the freewheeling pulley, for one thing.
    Kent Christensen
    21482
    '12 R1200RT, '02 R1100S, '84 R80G/S

  12. #12
    Bill Lumberg 175781's Avatar
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    Very good thread, very good info. My 04 is in the shop now, and (with almost 40K miles) I was told the alternator belt was toasty. Then there was a problem with none of the stock replacement belts fitting. Methinks the lack of update in the manual might be causing my shop a problem. Now I'm wondering if they have the 200+ dollar tool on hand for tensioning the elast belt.
    R75/6, 2004 R1150RTA.

  13. #13
    Day Dreaming ... happy wanderer's Avatar
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    Don't give up on BMW over a rubber belt. If they can't tension a belt properly without the fancy tool you might want to look around for a mechanic though! This can be done by feel.
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

  14. #14
    Aspiring Profligate jeff488's Avatar
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    I just use a block of Maple cut to 116 mm, let the upper pulley rest on it and tighten the mounting bolts. It ain't astrophysics.
    '04 Silver R1150RT "Big Oel"
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  15. #15
    Day Dreaming ... happy wanderer's Avatar
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    Quote Originally Posted by Jeff488 View Post
    I just use a block of Maple cut to 116 mm, let the upper pulley rest on it and tighten the mounting bolts. It ain't astrophysics.
    And the bottom of the 116mm block of wood is on the lower pulley?
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

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