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Old 03-24-2014, 02:20 PM   #31
Anorak
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Quote:
Originally Posted by cele0001 View Post
Due to the greater positive response than originally anticipated I went ahead and placed and order for 10 hubs. There will be no prepayment. I am still working on the rivet solution. My original "proof of concept" was just 5mm thick spacer that I bolted in with M5 bolts with red locktite. I pulled it out after 500 miles and there was nothing to report. I have since removed the bolts and installed rivets using hammer and punch. I don't like the possibility of lose parts in the transmission housing.This is the part of the process that I want to get "normalized" to make sure it is repeatable. Those that expressed interest (or even those who could care less) and have scrap clutch plate to play with please send me a PM.
This is what is spinning inside my bike as we speak. I put about 300 miles and removed it and re-installed it over the weekend to check. Nothing to report.
Find one of these on e-bay, link.

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Old 03-24-2014, 03:27 PM   #32
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[QUOTE=Anorak;23769408]Find one of these on e-bay, link.


The idea for the kit is to include everything you need to complete the task.
I dont want to build the clutch plates, I want to make sure other people can do it themselves.
So I have to design cheap efficient tools only for this task. I guess bolts are an option but I really like the rivets if done right.
This is the current stage.
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WORN INPUT SPLINES CLUTCH HUB SPACER R1150XX
http://advrider.com/forums/showthread.php?t=964425
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Old 03-24-2014, 03:42 PM   #33
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Just to clear up any confusion I placed the order for spacers not the hubs. If your hub is damaged you have to buy a new clutch plate from bmw.
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http://advrider.com/forums/showthread.php?t=964425
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Old 03-24-2014, 07:20 PM   #34
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Is it my imagination or do I see stepped wear on those splines?

Quote:
Originally Posted by cele0001 View Post
...
This is what is spinning inside my bike as we speak. I put about 300 miles and removed it and re-installed it over the weekend to check. Nothing to report.

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Old 03-24-2014, 08:10 PM   #35
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Holly laser eyes Batman

Quote:
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Is it my imagination or do I see stepped wear on those splines?
You are absolutely right Anton. The clutch that is spinning is the original clutch that had beginning signs of wear on it, and reason for my experimentation with this modification.
Here are some more pictures of the hub and the shaft. This was at 24k miles.

You can see the wear on the hub and discoloration at the shaft which I believe is the beginning of the end. I figured I will use the old clutch and if everything is OK with it then I know it is going to be OK with the new one.
You can also see that it is just a basic spacer without the stepped design that the later one has. I have a new clutch disassembled and waiting to be the complete process test.





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Old 03-24-2014, 08:38 PM   #36
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.

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Old 03-24-2014, 09:25 PM   #37
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Cele, what about a spacer between the end of the crank and flywheel?

roger 04 rt screwed with this post 03-25-2014 at 06:24 AM
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Old 03-25-2014, 04:03 AM   #38
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That would be the beginning. Then either another spacer or custom clutch pushrods, and another spacer or custom starter and possibly custom starter cover, and......
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Old 03-25-2014, 05:40 AM   #39
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Has anyone taken a hardness test of the shaft? If the shaft is surface hardened, as it should be, this may be interesting information.
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Old 03-25-2014, 09:36 AM   #40
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Quote:
Originally Posted by cele0001 View Post
6 speed has 19 mm of spline length available. It does not use 6 mm, so only 13mm are actually carrying the load.
All of the old parts I have here show about 16mm of engagement, with 4mm unused spline in the hub. The R1100 5-speed has 18mm engagement.

FWIW the input shaft for the Hexhead has the identical profile with a 4mm longer clutch spline... but the rear end is too long with flutes that keep you from machining it to fit. So close...
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Old 03-25-2014, 10:19 AM   #41
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Quote:
Originally Posted by AntonLargiader View Post
All of the old parts I have here show about 16mm of engagement, with 4mm unused spline in the hub. The R1100 5-speed has 18mm engagement.

FWIW the input shaft for the Hexhead has the identical profile with a 4mm longer clutch spline... but the rear end is too long with flutes that keep you from machining it to fit. So close...
It is good to see that even you are still chewing on this problem in your spare time. Just out of curiosity how often do you see worn splines nowadays.
I think that last 4 mm stay "unworn" on a destroyed part but the splines end about 2mm before the end of the shaft. Once the hub goes those extra 2mm get destroyed by the stepped down portion of the spline profile. I would appreciate feedback.
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WORN INPUT SPLINES CLUTCH HUB SPACER R1150XX
http://advrider.com/forums/showthread.php?t=964425

cele0001 screwed with this post 03-25-2014 at 10:25 AM
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Old 03-25-2014, 10:26 AM   #42
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I am so not chewing on this problem. I'll occasionally look at these threads but for the most part it's all covered ground for me.

I see a few each year. Last year I can remember an S and an RT in the shop for it but there may have been more (plus some mail-order repairs).
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Old 03-25-2014, 11:56 AM   #43
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Quote:
Originally Posted by AntonLargiader View Post
All of the old parts I have here show about 16mm of engagement, with 4mm unused spline in the hub. The R1100 5-speed has 18mm engagement.

FWIW the input shaft for the Hexhead has the identical profile with a 4mm longer clutch spline... but the rear end is too long with flutes that keep you from machining it to fit. So close...
Anton, Are you saying that the Hexhead shaft does not extend to the clutch disc centerline as the R1100 does?

Can either of you say how far back the end of the shaft is from the centerline on the 1150.

I'm trying to convince myself of this solution.
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Old 03-25-2014, 01:24 PM   #44
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Quote:
Originally Posted by AntonLargiader View Post
All of the old parts I have here show

FWIW the input shaft for the Hexhead has the identical profile with a 4mm longer clutch spline... but the rear end is too long with flutes that keep you from machining it to fit. So close...
I think he is saying that hex head shaft would fix the engagement in the front but it is impossible to use it because it can not be made to fit the rest of the geometry in the transmission (even with cutting)

And the 1150 6 speed (and 1100 6 speed, 1100S) and some other chromeheads are the only BMW's in the history of BMW (not only bikes) and clutches (in general) that do not have full spline hub engagement. But I am still young, maybe I haven't seen enough.
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http://advrider.com/forums/showthread.php?t=964425
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Old 03-25-2014, 09:32 PM   #45
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For the people that expressed interest , how many would go with bolts vs rivets for the spacer install. From personal experience I know that 5 mm bolts with nylock nuts would be enough but I am partial to rivets. Just want to know if developing the tools to allow you to install rivets would have any value. Rivet tools would be part of every kit.
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http://advrider.com/forums/showthread.php?t=964425
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