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Old 06-11-2013, 04:09 PM   #16
STUFF2C
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Originally Posted by VEGASGSA View Post
Yes...
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Old 06-12-2013, 08:52 AM   #17
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You may have some rubber debris from the old brake lines that has gotten into the master cylinder or the caliper and is impeding the caliper piston from releasing pressure. You have some more work to do it would seem. Lots of compressed air and some cleaning solvent and you'll be fine.
Could be,

In that case, I would drain all fluid from the system. I heard that white spirit is good to clean the system. I never tried it though.
I prefer to change the oil once a year :-)

Cheers!
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Old 06-13-2013, 12:58 AM   #18
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Locking rear wheel

I think I may have overtightened the caliper
Cause when I untightened it a bit the wheel has come loose, I will still take it to my mechanic to be sure, cause I am not happy to ride with doubts about the braking system!!! So next week I will probably have an answer and keep you posted!!! Thanks for all the help
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Old 06-13-2013, 06:49 AM   #19
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Without something being stuck in the caliper....there is no way you can "overtighten" it and make it drag..piston has to be stuck..
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Old 06-13-2013, 07:36 AM   #20
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I think I may have overtightened the caliper
Cause when I untightened it a bit the wheel has come loose, I will still take it to my mechanic to be sure, cause I am not happy to ride with doubts about the braking system!!! So next week I will probably have an answer and keep you posted!!! Thanks for all the help
You are correct to be concerned about your brakes.

Brake calipers generally are not complex devices. Likely the most important things are;

1- No leaks.
2- No debris in the fluid.
3- Brake pads and anti-rattle clips installed correctly.

If you are comfortable with tools, I would remove and disassemble the caliper and make sure it is free of any debris. Also, make sure the slide pins are free, not corroded and are greased. Be careful when applying compressed air to the caliper. It can close with extreme force and damage/pinch a finger.

Once you have the caliper back on, I would inspect the master cylinder for debris and proper operation.

Keep us informed of your progress.
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Old 06-13-2013, 01:55 PM   #21
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Is the brake disk aligned with the caliper?
That could explain that the rear wheel got stuck when tightening.

Post some pictures, that might also help :-)
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Old 06-14-2013, 12:13 AM   #22
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Eek

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Is the brake disk aligned with the caliper?
That could explain that the rear wheel got stuck when tightening.

Post some pictures, that might also help :-)
How can I check this? I mean I have not dismantled the disc, so I am assuming that is mounted correctly!
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Old 06-14-2013, 06:29 AM   #23
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How can I check this? I mean I have not dismantled the disc, so I am assuming that is mounted correctly!
Agreed..you don't pull the disc with the wheel like on other bikes, the guy who wrote that prolly ain't aware of that..

As long as there is no MASSIVE break in the aluminum flange that the wheel bolts to, your fine.

My money is on a stuck or dragging caliper..assuming you don't have brand new rear pads on...you should be able to place your thumbs on caliper and fingers on swingarm...and compress the pistons. (If you have the hand strength) it should be about the consistency of squeezing a caulking gun..not easy, but dooable..
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Old 06-24-2013, 10:02 AM   #24
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Wicked Rear wheel unstuck!!!

First of all thanks to you all who helped with answers, just got my bike back from my mechanic and the sucker was a (grown) rubber washer inside the caliper!!! Well maybe this will help others as well, the part from Bmw was not available off the shelf and a honda transalp part fits perfectly. Now it is a breeze!!!
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Old 06-24-2013, 11:03 AM   #25
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If your bike has the old rubber brake lines replace them with SS Teflon ones. I have had 2 bikes with rear calipers dragging in the last year. They deteriorate inside and block the return of fluid.
Also the debris will cause an ABS fault causing people to replace the unit before finding out it was a rubber line problem.
The other problem with the old lines is they will bulge under hard application of the brake resulting in total loss of all breaking.





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