K11 Owners Group

Darith · Joined: 08 Jul 2010 Posts: 20

K1100LT.My front brake lever has been leaking some brake fluid recently and the front brakes
then locked one day plus the brake lever was hardly able to move. Now the front brakes
will not work nor the lever will hardly move ?!

RJTrucker · Posted: Sat May 14, 2011 3:49 pm Post subject:

Beemer bone yard sells a new front master cyclinder for a reasonable price. Better then rebuilding the old one every year or two.
_________________
Ron
1993 K11LT
1985 K100RS with over 100K on it
1985 K100RS Luftmiester Turbo Work in progress (any help is appreciated)
1974 R90/6

Scott_Anderson · Posted: Sat May 14, 2011 5:51 pm Post subject:

One of the reasons to change your fluid every year to keep the system clean not let crud build up.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

S2Scout · Joined: 09 Jun 2011 Posts: 2 Location: Upstate, NY, USA

Seems that at 12k the pads are gone. Is this normal?
_________________
Get wet, Ride more! Bob
96 K1100RS
83 CX 650
83 CX650T

Phil Marvin · Posted: Thu Jun 09, 2011 7:58 pm Post subject:

Hi, S2Scout,
You have a K1100RS; I had K1100LT's, but the brakes are the same. I put about 110k miles on my '96 K1100LT and, on average, got about 24k miles from the rear pads and 36k miles from the front pads. I always used OEM BMW pads (part numbers and pad material changed in the late 1990's). That's on MY bike, MY riding style, etc., etc. Your mileage may vary.
_________________
Ride Safe,
Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP

Scott_Anderson · Posted: Thu Jun 09, 2011 9:20 pm Post subject:

Are the pads worn evenly thin? I'm talking inner/outer not so much left/right.
It's possible that you could have the some pistons dragging in the caliper that would cause premature pad wear, or at least uneven pad wear.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Tim (Midland Section) · Posted: Wed Jun 15, 2011 7:38 pm Post subject:

I reckon your lever or piston is not returning fully. When the brake lever is pulled the piston covers the reservoir return hole, then pushes the fluid down the lines.
So when you release the lever, if this hole is not uncovered & the fluid cannot return from whence it came, In effect "pumping up" the system. If you loosen the bleed nipple & get a squirt then the system was still pressured.
Remove lever, checking for easy operation, then check piston & bore for crud which will stop it fully returning to the "home" position.
HTH
_________________
Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485