K11 Owners Group

RPor · Joined: 26 Oct 2007 Posts: 3

My name is Rene Portegies, I am Dutch and a new member of this forum. I ride a R1200S as well as a K1100RS . Recently I bought the K1100RS (Black/Silver color) second hand from somebody in Germany. Maintenance reports are with the bike, mileage low (around 20000). So far, the bike rides very well, no issues but when a few weeks ago the dealer replaced my rear wheel tyre, the following appeared : Oil from the drive shaft is leaking out of the holes where the bolts fit in when the wheel is mounted. When the wheel is mounted there is no oil leakage. I tried again, so last Saturday I removed the rear wheel again and again oils leaks out of the holes where the bolts fit into. Not enormous amount of oil but still it leaks. Question

As the dealer cannot explain this (he just looks very amazed himself) I am now trying to get advice via the internet as I do hope somebody with good technical expertise with this bike can explain this. Wink

Your help/advice is much appreciated.

Rene

Phil Marvin · Posted: Sun Nov 25, 2007 12:55 pm Post subject:

Hi, Rene,
First, your driveshaft does not run in oil, so the oil isn't coming from there. Looking at the parts fiche, about the only way oil could be getting onto the lug bolts is from a leaking oil seal. If it doesn't leak while the wheel is mounted, I wouldn't lose sleep over it. If it DOES leak and oil gets all over your wheel, I would have it fixed as soon as possible. Never having had to replace an oil seal in the final drive, I can't give you advice there. Maybe one of the other K11OG posters can. Good Luck!
Ride Safe,
_________________
Ride Safe,
Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP

RPor · Joined: 26 Oct 2007 Posts: 3

Phil, thanks. No oil is leaking when the wheel is mounted. The dealer did check the oil seal and according to him, the oil seal is fine. As you are referring to a parts fiche, is there a way I can look at it or how I can get the fiche Question

k1100rsr · Posted: Sun Nov 25, 2007 5:02 pm Post subject:

I looked at the crownhweel/wheel bolts holes from an finaldrive I have taken apart, and the thing is made of aluminium and steel together. So I guess you have some sort of leak where the two metals are pressed together. To seal it, take the crownwheel out, clean it and use some glue/ sealant. Or buy a new one..$$$

Or another tought, maybe the old owner have pumped oil into the threads to lubricate them? Clean it out with breake cleaner and compressed air. Wait and see if any more oil appears.

For parts fiche http://www.realoem.com/bmw/select.do?vin=&kind=M&arch=0
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93 K1100RS TIC-8PSI ï¿½hlins rear,WP springs front, 2,62 final drive, K12RS 5" rear wheel
Toy on four wheels, supercharged -97 BMW 540
http://community.webshots.com/user/k1100rsr

RPor · Joined: 26 Oct 2007 Posts: 3

K1100SR, thanks. I will have a look at the part fiches to get a better understanding how it all fits together. I do not understand your second thought, what do you mean by pumping oil into the threads Question

Rene

k1100rsr · Posted: Mon Nov 26, 2007 5:54 pm Post subject:

To lubricate the bolt threads with oil before he was torquing it.. Some does, I have seen that on autos.. Confused

Pumping everything full with one of this: But as I said ,just a tought.

But if so, you can flush it out with solvent/brake cleaner.
_________________
93 K1100RS TIC-8PSI ï¿½hlins rear,WP springs front, 2,62 final drive, K12RS 5" rear wheel
Toy on four wheels, supercharged -97 BMW 540
http://community.webshots.com/user/k1100rsr