grinding while shifting - BMW Luxury Touring Community
 
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post #1 of 7 Old Apr 21st, 2014, 9:25 am Thread Starter
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grinding while shifting

Gentlemen,
I sometimes here what I can best describe as a "grinding" noise while shifting up and sometimes while shifting down while coming to a stop. It is intermittent but worrisome. Often the up and down shifts are succinct and sound as they should. Granted I am a new BMW owner and my bike is a "97 R1100RT w/ 20K in miles. It is possible that I'm just not in tune with the nuances of the BMW shifting or does it sound like something else. Thanks in advance for your feedback.
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post #2 of 7 Old Apr 21st, 2014, 11:20 am
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Re: grinding while shifting

Just a thought or two;
do you "pre-load" the shifter prior to initiating the shift?
can you get another BMW rider to take your bike for a spin to see if it responds like theirs?

Seems to me that all my bikes, including my LT, tend to make more noise at differing times. I've always assumed that it's just me being slightly "off" at those times.
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post #3 of 7 Old Apr 21st, 2014, 11:33 am
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Re: grinding while shifting

these bikes do not like to be "granny shifted," try running it to at least 4,000 rpm before shifting and make a very quick (but not violent--if you force it you can damage the mechanism) shift

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post #4 of 7 Old Apr 21st, 2014, 12:16 pm Thread Starter
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Re: grinding while shifting

thanks guys I'll try higher rpm/quicker shift and see if that helps
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post #5 of 7 Old Apr 21st, 2014, 12:56 pm
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Re: grinding while shifting

Don't force the lever but do give a positive punch when shifting. If you lightly press it then the shift dogs (see photo) will growl at you until they engage. This transmission had over 100 K on it.
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Last edited by jzeiler; Apr 21st, 2014 at 1:02 pm.
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post #6 of 7 Old Apr 23rd, 2014, 7:52 am Thread Starter
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Re: grinding while shifting

it appears as if I have been "pussyfooting' the shift lever. My bike needs a a solid and concise shift to engage without grinding. Thanks for all the suggestions guys.
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post #7 of 7 Old Apr 23rd, 2014, 9:38 am
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Re: grinding while shifting

As a former owner of 97 RT1100, I agree with other comments. The bike doesn't like low rpms. And shifting about 3500rpm with preload, seemed to work fine for me.

Sure wish I had that 97 RT back. It was a great bike, and very simple to work on.... heck even I could do it.

Chris Ogle

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