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new k1100 owner...

 
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Sat May 12, 2018 1:08 am    Post subject: new k1100 owner... Reply with quote

Hi all.
I am from greece, athens.
Yesterday i just bought a 1995 k1100lt . One owner...115.000 klms.

I had a k100rt, but this is a better handling bike( and heavier also..). Maybe because the wheels are from rs model.

I have issues with brakes.Abs unit under the seat is leaking fluid.Abs test lights working properly, but the triangle is on all the time.I dont know if this is fixable

Bike had replaced clutch disc and front seals before 2000klm at the dealer.
Now the front brakes are in oil mud ...from the leaking seals....the front pads are contaminated with oil.So no braking..i must clean all parts.Can i rescue the old pads with just sanding?..
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Don Sproule
Flying Brick Rider


Joined: 30 May 2006
Posts: 261
Location: Saskatoon, Saskatchewan, Canada

PostPosted: Sat May 12, 2018 2:30 am    Post subject: Reply with quote

I wouldn't.
Buy new pads.
They don't have to be OEM.
Cheap investment, considering the stakes.

Don
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Scott_Anderson
Site Admin


Joined: 05 Sep 2006
Posts: 3117
Location: Central Iowa, USA

PostPosted: Sat May 12, 2018 10:32 am    Post subject: Reply with quote

Re the triangle warning light, have you checked that the rear tail/stop light is not burned out.
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Ride safe.



1995 K1100LT 0302044
1997 R1100RT ZC62149
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.)
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Sat May 12, 2018 11:14 am    Post subject: Reply with quote

Scott_Anderson wrote:
Re the triangle warning light, have you checked that the rear tail/stop light is not burned out.


You are right..that triangle is for rear light check.Its been 10 years from my previus K100, i have forgot all that german stuff.,

So , my only issue is that leak.It is at the top of the abs unit ,just below the front bleeding screw.. maybe a bad seal at the piston?
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Grunter
Flying Brick Rider


Joined: 30 Sep 2015
Posts: 367
Location: North East England

PostPosted: Sat May 12, 2018 5:39 pm    Post subject: ABS Unit Reply with quote

The ABS unit does not have any seals that are user replaceable! I am assuming that the ABS system we are talking about is the ABS2 with the unit beneath the seat on the left hand side. It is possible that someone has cross-threaded one of the gland nuts securing the pipes to the unit. ( or It may simply be slight loose).

Front and rear master cylinders are easy to service and replace the seals. Again considering the age of your bike I would do them as a matter of course.

My 1998 KLT ABS failed not long after I bought the bike so just removed the relay from inside the relay box and then the warning lamp from inside the instrument head. I am not a great fan of ABS anyway.

The brakes will work just as well without ABS. With a bike as old as yours it would be worth the work to check the flexible hoses on both the front and rear brakes as the deteriorate internally and can fail without warning.
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1997 K1100LT
1994 R1100RS
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Sun May 13, 2018 12:41 pm    Post subject: Re: ABS Unit Reply with quote

Grunter wrote:
The ABS unit does not have any seals that are user replaceable! I am assuming that the ABS system we are talking about is the ABS2 with the unit beneath the seat on the left hand side. It is possible that someone has cross-threaded one of the gland nuts securing the pipes to the unit. ( or It may simply be slight loose).



yes , abs 2 under the seat..Unfortunally all four pipe nuts are dry.The leak is from the bleeding niple or from the hexagon big nut at the top of the unit... .The bleeding screw is not loose
[/img]
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Grunter
Flying Brick Rider


Joined: 30 Sep 2015
Posts: 367
Location: North East England

PostPosted: Sun May 13, 2018 5:22 pm    Post subject: Re: ABS Unit Reply with quote

africanos wrote:
Grunter wrote:
The ABS unit does not have any seals that are user replaceable! I am assuming that the ABS system we are talking about is the ABS2 with the unit beneath the seat on the left hand side. It is possible that someone has cross-threaded one of the gland nuts securing the pipes to the unit. ( or It may simply be slight loose).



yes , abs 2 under the seat..Unfortunally all four pipe nuts are dry.The leak is from the bleeding niple or from the hexagon big nut at the top of the unit... .The bleeding screw is not loose
[/img]


In which case it has to be a problem with the bleed screw. Possibly a small piece of dirt or grit is stopping the bleed screw from seating properly. You can remove it and clean out the seat together with possibly a new bleed nipple. They are not that expensive.

In the worst case scenario it could be that the nipple has been over tightened and cracked the casing. It is possible (in UK) to buy a purpose made after market kit to bypass the ABS unit completely and have the same braking as before, less of course the ABS.

If you are interested have a look at www.motorworks.co.uk they do export from UK.
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1997 K1100LT
1994 R1100RS
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Wed May 16, 2018 5:43 am    Post subject: Re: ABS Unit Reply with quote

Grunter wrote:
africanos wrote:
Grunter wrote:
The ABS unit does not have any seals that are user replaceable! I am assuming that the ABS system we are talking about is the ABS2 with the unit beneath the seat on the left hand side. It is possible that someone has cross-threaded one of the gland nuts securing the pipes to the unit. ( or It may simply be slight loose).



yes , abs 2 under the seat..Unfortunally all four pipe nuts are dry.The leak is from the bleeding niple or from the hexagon big nut at the top of the unit... .The bleeding screw is not loose
[/img]


In which case it has to be a problem with the bleed screw. Possibly a small piece of dirt or grit is stopping the bleed screw from seating properly. You can remove it and clean out the seat together with possibly a new bleed nipple. They are not that expensive.

In the worst case scenario it could be that the nipple has been over tightened and cracked the casing. It is possible (in UK) to buy a purpose made after market kit to bypass the ABS unit completely and have the same braking as before, less of course the ABS.

If you are interested have a look at www.motorworks.co.uk they do export from UK.


finally i found the leak...i hold down the rear brake pedal...bublles coming out from the big nut on top of the unit just below the bleeding nipple.
bleeding screw is ok.
Front brakes working good and abs engaged ...i just have a problematic rear..spongy feel
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Fri May 18, 2018 5:10 pm    Post subject: Reply with quote

update.
I found a specialist in bmw abs units locally..and he fixed it.
He open the big hexagon nut without removing the unit from the bike, he replace 2 orings, and bleed the system.

finally my rear brake works

conclusion..

Bmw doesnt sell spare abs parts for a reason, he sells the expensive units...

so if you want to repair it, you must have a collection from broken units for parts
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Scott_Anderson
Site Admin


Joined: 05 Sep 2006
Posts: 3117
Location: Central Iowa, USA

PostPosted: Fri May 18, 2018 8:52 pm    Post subject: Reply with quote

Especially when it comes to brakes...... component repair by a dealer opens them up for greater liability than simple component replacement.

No different than car dealers anymore. No component repair.
_________________
Ride safe.



1995 K1100LT 0302044
1997 R1100RT ZC62149
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.)
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Grunter
Flying Brick Rider


Joined: 30 Sep 2015
Posts: 367
Location: North East England

PostPosted: Sat May 19, 2018 4:04 pm    Post subject: ABS Brakes Reply with quote

africanos wrote:
update.
I found a specialist in bmw abs units locally..and he fixed it.
He open the big hexagon nut without removing the unit from the bike, he replace 2 orings, and bleed the system.

finally my rear brake works

conclusion..

Bmw doesnt sell spare abs parts for a reason, he sells the expensive units...


That must be a relief. Quite an easy fix

However going back to my original advice considering the age of your bike. Check the flexible hoses to see if they are on the way out. The front ones especially. If they are the original black rubber covered hoses, they can decompose internally and not show any signs of deterioration until it is too late. The rear one likewise. Replace with aftermarket metal braided type they will outlast the bike.

The rear callipers are easy to service and split to remove the pistons, clean out and bolt back together. The internal seals very rarely 'go' but the rubber dust boots can split and let dirt into the system.

It is a little more difficult with the front callipers. Advice from BMW themselves state that the callipers must not be split as it will be almost impossible to bolt them back together and get a good seal. I know people who have and got away with it but not for me.
I just push the pistons as far back as I can into the calliper cylinders, lubricate the piston/cylinder with fresh brake fluid and refit the rubber boots.

Bleeding is almost as easy as the non ABS models, you just have to bleed to the ABS unit first then continue to the calliper nipple on both ends of the bike.

I sometimes take short cuts with other things on the bike, but I must definitely l do not do that with the brakes.
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1997 K1100LT
1994 R1100RS
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N41EF
Flying Brick Rider


Joined: 23 Mar 2014
Posts: 406
Location: Aiken, SC

PostPosted: Sat May 19, 2018 8:42 pm    Post subject: Reply with quote

Backing up Grunter, my front brake lines looked new, but were 23 years old when the front brake started "sticking". The lines broke down inside and wouldn't let fluid flow at lower pressure, so when you applied the brake, it would work fine until you let off, the a second or two later you'd feel it release and the front end come back up. Scary. Replace the brake lines with stainless. You can find them on eBay or through most of the parts places.
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2014 R1200RT Water Cooled
2001 R1100S Light
1993 K1100LT. Nissan Ice Blue.(Gone)
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10082
Location: Bumf***, WA

PostPosted: Sun May 20, 2018 1:50 am    Post subject: Reply with quote

I did a spline lube last fall on a local guy's 93 LT.

Afterwards he told me that his rear brake no longer worked at all. He watched me do the whole thing and knew that the only thing I did was take the caliper off to take the rear end apart.

He finally made it by a few weeks ago to have me take a look. Turned out the interior on the line from the ABS modulator to the caliper had disintegrated and floated free. When I pulled the banjo bolt off of the caliper it was completely PACKED with the rubber of the liner. It took me several minutes to pick all of it out with a dental pick. It was completely blocking the banjo bolt which is why the bike had absolutely no rear brake.
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93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Sun May 20, 2018 8:06 am    Post subject: Reply with quote

Yes..you are right all ...i must replace the old brake lines ASAP.
I have lots of stuff to do...spline lube is one of them
I did all maintenance in my previus 1984 k100, but this k bike is diferent animal.
only looking at the 160 rear wheel, and final drive area...and I feel it will be pita

Much less room to work
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10082
Location: Bumf***, WA

PostPosted: Sun May 20, 2018 8:39 am    Post subject: Reply with quote

Here's a link to my write-up on spline lubing a 94+ K1100. Hope you find it useful.

http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/splinelube/splinelube.htm
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
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africanos



Joined: 08 Jun 2017
Posts: 22
Location: athens

PostPosted: Sun May 20, 2018 9:07 am    Post subject: Reply with quote

great...thats the stuff I was looking...thanks
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