K11 Owners Group

Al. · Posted: Sat Feb 19, 2011 3:34 pm Post subject: Front brakes

Was about to change front caliper seals because brakes were binding.
Pistons were not returning into caliper.

I decided that when the calipers were loose I would clean them off first before disconnecting.

Did all that put them back on - pulled brake lever - stayed pulled ????
No reisistance at all. Anybody know what's the problem.

So while you are all in bed here am I worrying about my bike - wake up ! !

BobZ(IL) · Posted: Sat Feb 19, 2011 4:04 pm Post subject:

Maybe you have a brake line collapsing. That was the problem I discovered after rebuilding the calipers on mine.
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'78 R100S
'05 R1200GS
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drikko · Posted: Sat Feb 19, 2011 5:48 pm Post subject:

I'm awake!! ABS or not? Did you bleed them properly? Bleeding would be the obvious thing! Is there pure fluid coming out the bleed nipples at the ABS and the caliper?
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Al. · Posted: Sat Feb 19, 2011 6:57 pm Post subject:

I didn't mess with the the fluid but maybe they might need a bleed.
it did this a short time ago but recovered but they were binding and ABS wasn't kicking in.

Glad you are awake and waiting for my questions.
almos 11 pm here and it's dark too ! ! ! beware of leprechauns !!!!!

Al. · Posted: Sat Feb 19, 2011 7:13 pm Post subject: Things in Oz

http://s425.photobucket.com/albums/pp334/mikefido/?action=view&current=speed.jpg

Jim · Posted: Sat Feb 19, 2011 7:59 pm Post subject: Re: Things in Oz

Al. · Posted: Mon Feb 21, 2011 8:56 am Post subject: Re: Things in Oz

Al. · Posted: Mon Feb 21, 2011 8:58 am Post subject: Re: Things in Oz

garynali · Posted: Mon Feb 21, 2011 6:05 pm Post subject:

Gday AL, this might help, on my bike whenever I bottom out the front pistons , ie. pad change the fluid takes ages to move back into the system. I pump the brake lever every hour or so and after a few hours back to normal, no bleeding required.
Gary C
93 K1100RS {ABS}

Al. · Posted: Mon Feb 21, 2011 8:43 pm Post subject:

Found it - the last time I had a master cylinder it was caused by water in the piston area - so I put lots of Teflon grease around the pin from the lever and under the little boot. The grease and seized the piston. Took it out cleaned up and now it seems fine. Have to do road test but I think this is the issue.

Thanks for advice anyway !

slipperyox · Posted: Tue Feb 22, 2011 12:19 pm Post subject:

Check out my earlier thread:
http://www.k11og.org/forum/viewtopic.php?t=9910

I dismantled the calipers, and using a syringe, the whole system only bled fully by (i believe) raising the calipers and tying to the ceiling and then bleeding them(courtesy of Duck).
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