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diz plaz is cwazy
 
RIQUE's Avatar
 
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Clutch Grinding

After a nice trip through the country about 5 miles from home I change gear from 2nd to third and it would not go in. Then I heard a nasty grinding sound and could not find neutral. Turned bike off put it in neutral and started it again same sound so I left in neutral until AAA came to pick me up. Looks like my clutch died a sudden death with very few signs before so.

Whats next... full clutch change....20.000 miles any links to procedure?
Thnx

R1100s
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BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)

Last edited by RIQUE; 05-20-2019 at 05:00 AM..
Old 05-19-2019, 05:24 PM
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Which bike was it ?
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2004 R1100S
Old 05-19-2019, 06:57 PM
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Sorry man, that sounds like transmission input shaft / clutch splines. I'm afraid you're about to have a painful and expensive experience.
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Jim Moore
Jax, FL
'01 R1100S
'07 CBR600RR
Old 05-20-2019, 01:54 AM
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Quote:
Originally Posted by JimMoore View Post
Sorry man, that sounds like transmission input shaft / clutch splines. I'm afraid you're about to have a painful and expensive experience.
Can you please elaborate. Should I drain the gearbox oil to see whats up.
__________________
Life rewards action, He who is not afraid is safe!
A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-20-2019, 05:01 AM
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Quote:
Originally Posted by groceryrun View Post
which bike was it ?
r1100s
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A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-20-2019, 05:02 AM
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Here ya go.

2000 R1100S Driveline Issue
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Jim Moore
Jax, FL
'01 R1100S
'07 CBR600RR
Old 05-20-2019, 08:35 AM
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Quote:
Originally Posted by JimMoore View Post
Thanks Jim....o boy
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A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-20-2019, 08:41 AM
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At this point your clutch hub is destroyed, and your input shaft is almost gone. In my opinion the only way to fix this is to buy a known-good used transmission and install it, along with a new clutch disk. You can buy a disk for pretty cheap from Beemer Boneyard, and check Ebay for a transmission. If you simply replace the input shaft it will come apart again in another 20K miles. Sorry man. That sucks.
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Jax, FL
'01 R1100S
'07 CBR600RR
Old 05-20-2019, 11:35 AM
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Quote:
Originally Posted by JimMoore View Post
At this point your clutch hub is destroyed, and your input shaft is almost gone. In my opinion the only way to fix this is to buy a known-good used transmission and install it, along with a new clutch disk. You can buy a disk for pretty cheap from Beemer Boneyard, and check Ebay for a transmission. If you simply replace the input shaft it will come apart again in another 20K miles. Sorry man. That sucks.
Why will the input shaft come apart in 20K if replaced?
__________________
Life rewards action, He who is not afraid is safe!
A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-20-2019, 11:44 AM
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Just so you don't feel like you are alone, I finished fixing my 2004 R1100s, Sept. 2018. My bike had almost 46,000 miles on it. I did have my transmission rebuilt by Anton in Virginia. Everything else I did myself. It runs wonderful now after putting almost 5,000 miles on it since it was fixed.

Good luck. It is a lot of work.
Old 05-20-2019, 11:47 AM
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Which bikes share tranny with R1100S? Any quality sources?
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A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-20-2019, 12:12 PM
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There was a guy here who just made a batch of improved input shafts. I think he said he made a couple extras. (I bought one, plus a clutch from MaxBMW. My hope is that by having spares, the originals will be afraid to quit, so I won't actually have to tear open my bike.)

Here's the link...
Old 05-20-2019, 02:30 PM
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Quote:
Originally Posted by JimMoore View Post
If you simply replace the input shaft it will come apart again in another 20K miles.
I'd like to know more about this, too...does the transmission upstream of the input shaft get hosed if the input shaft & clutch go? If I have spares, should I replace them now as a preventive measure, or can I wait until [some symptom] appears? How do I tell when It's Time?
Old 05-20-2019, 02:33 PM
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Quote:
Originally Posted by RIQUE View Post
Why will the input shaft come apart in 20K if replaced?
There are debates as to the cause of the problem. The one that makes sense to me is that the transmission holes (where it attaches to the engine) are not drilled in the right places. If you replace only the input shaft you simply start the process all over again. Many people, including myself, have had that exact experience. My R1100S was fixed by a used transmission after it failed the second time.

It happens to some and not to others. If you have a bad one it will keep happening. There are some things you can try if you can't find a transmission. One guy machined some offset dowels to eliminate the offset. Another guy machined some spacers that increased the contact area of the clutch hub. There was talk of a modified input shaft.
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'07 CBR600RR
Old 05-20-2019, 03:05 PM
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Quote:
Originally Posted by spacewrench View Post
I'd like to know more about this, too...does the transmission upstream of the input shaft get hosed if the input shaft & clutch go? If I have spares, should I replace them now as a preventive measure, or can I wait until [some symptom] appears? How do I tell when It's Time?
How many miles on your bike? If you have over 20K miles or so you can check the health of the splines by removing the starter, tying the clutch lever to the handle, and looking in the starter hole. If the clutch hub can rotate more than a millimeter or two you have a problem.
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'01 R1100S
'07 CBR600RR
Old 05-20-2019, 03:08 PM
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Quote:
Originally Posted by JimMoore View Post
It happens to some and not to others. If you have a bad one it will keep happening. There are some things you can try if you can't find a transmission. One guy machined some offset dowels to eliminate the offset. Another guy machined some spacers that increased the contact area of the clutch hub. There was talk of a modified input shaft.
Does this mean that if I get that upgraded shaft with less spline play it could work?
Seems thats the whole idea of the improvement.

"Some specifications:
- Replaces BMW p/n 23 21 7 651 172. Fits all R1150 6 speeds
- Shaft material is harder than OE and splines have reduced backlash to further reduce wear.
- Professionally manufactured to ISO9001, API Q1 & AGMA standards by a large North American Manufacturer.
- Original prototype now at 126,000mi (203,000km) in my own machine
- By combining with the Extended Hub Clutch Disc from Beemerboneyard an additional 6mm of spline area can be achieved for a total of 12mm.

Price: $855usd insured postage included to the contiguous USA. Paypal Accepted"
__________________
Life rewards action, He who is not afraid is safe!
A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-20-2019, 04:11 PM
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Quote:
Originally Posted by JimMoore View Post
How many miles on your bike? If you have over 20K miles or so you can check the health of the splines by removing the starter [...]
I'm at 75k now, but I don't have the maintenance history, so no idea whether the bike had any problems in its youth. I'll take a look at the starter & clutch next time I'm wrenching on something.

Thanks!
Old 05-20-2019, 04:41 PM
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Quote:
Originally Posted by RIQUE View Post
Does this mean that if I get that upgraded shaft with less spline play it could work?
Seems thats the whole idea of the improvement.

"Some specifications:
- Replaces BMW p/n 23 21 7 651 172. Fits all R1150 6 speeds
- Shaft material is harder than OE and splines have reduced backlash to further reduce wear.
- Professionally manufactured to ISO9001, API Q1 & AGMA standards by a large North American Manufacturer.
- Original prototype now at 126,000mi (203,000km) in my own machine
- By combining with the Extended Hub Clutch Disc from Beemerboneyard an additional 6mm of spline area can be achieved for a total of 12mm.

Price: $855usd insured postage included to the contiguous USA. Paypal Accepted"
that's the theory, but I've never tried one. Here's a tranny from Ebay.

https://www.ebay.com/itm/1999-BMW-R1100S-ABS-Transmission-Gear-Box/303149297388?fits=Model%3AR1100S%7CMake%3ABMW&epid=1023639540&hash=item46951b2eec:g:hkkAAOSwGZlc1FTq:sc:USPSPrio rity!32259!US!-1
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Old 05-21-2019, 01:11 AM
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Jim if I buy the tranny I should have it checked or redone by Anton?
__________________
Life rewards action, He who is not afraid is safe!
A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-21-2019, 04:15 AM
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Found this used tranny too. Are these splines good? Other gearboxes have them straight. Claims this is from an SBX?

__________________
Life rewards action, He who is not afraid is safe!
A Zest for living requires a willingness to die!
--------------------------------------------------------
BWM R1100S 2004 (fat girl) BMW S1000RR 2011(skinny
BMW R1200S 2007 (stingger) Honda CX500TC 1982 (turbo)
Old 05-21-2019, 04:54 AM
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