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1Back to top Go down   Brembo rear cylinder problem Empty Brembo rear cylinder problem Fri Feb 15, 2013 11:31 am

Tenox

Tenox
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Finally tried to "air" (direct translation, dont think its correct) out the rear brake. It did not do any good. No brake at all on rear. So we (with my dad) broke the rear main cylinder apart and I think we found out whats wrong with it.

http://kotisivu.dnainternet.net/ajk73/Brembo1.jpg I believe there should not be a hole in that rubber seal? Am I right? Other pic: http://kotisivu.dnainternet.net/ajk73/Brembo2.jpg and on of the cylinder itself - http://kotisivu.dnainternet.net/ajk73/Brembo3.jpg

Dont know if there a repair set for these available, but found one whole cylinder that should be OK from a motorcycle trash yard near me for 30 euros. Getting that next wednesday. We shall see then..



Last edited by Tenox on Sat Feb 16, 2013 2:47 am; edited 1 time in total


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BMW K100RT Scrambler (86)
    

2Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 15, 2013 11:52 am

twincarb

twincarb
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You can get a complete overhaul kit from motorworks... motobins etc.

Below are the bits you will get. As you have got it apart it would make sense to overhaul it....

Brembo rear cylinder problem Jpeg10


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BMW K100LT 1988 Matt Black Peugeot Electra Blue (ELX) Colour is now confirmed...
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Brembo rear cylinder problem 169042 Brembo rear cylinder problem 169034
    

3Back to top Go down   Brembo rear cylinder problem Empty rear brake cylinder Fri Feb 15, 2013 12:48 pm

sven k100

sven k100
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do'nt forget to check that the tiny transfer hole in the cylinder wall is clear. i believe a previous post has detailed this with excellent pictures.

    

4Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 15, 2013 5:52 pm

Tenox

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Looks like there is in that pic some stuff I dont even have at all... Those gold coloured parts don't seem familiar. Not at the garage right now so cant check, must do so tomorrow. I think I will get that second hand cylinder (it should be OK) and maybe later get that overhaul kit and fix the other cylinder (little short of money atm).

Transfer hole?? Would someone link that other discussion to this one?

Edit: I think that kit is for Magura? What that D = 12mm stands for in this link:
http://www.motobins.co.uk/displayfinal.php?function=show&subs=106d&title=(BREMBO+%26+MAGURA)+REAR+MASTER+CYLINDER+OVERHAUL+KITS

I measured my cylinder and it is 11mm. Must redo measuring too..


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BMW K100RT Scrambler (86)
    

5Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 15, 2013 6:11 pm

Inge K.

Inge K.
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@Tenox wrote:Transfer hole?? Would someone link that other discussion to this one?
https://www.k100-forum.com/t1301-brake-seizure
------------------------------------------------------------------------------

About the gold coloured parts, they're present on all models.
The most forward one is mounted at the brake pedal.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

6Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 15, 2013 6:18 pm

Tenox

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Thanks Inge and Sven! If I decide to fix the old cylinder must check that too.


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BMW K100RT Scrambler (86)
    

7Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 15, 2013 6:29 pm

Inge K.

Inge K.
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It also is a overhaul kit with only a new piston (with mounted seals) and the spring available.

EDIT: it looks like this kit is history..........

As you earlier mentions, the kit shown is for a 12mm cylinder.

You should have a 13mm cylinder, and the distance piece between the adjuster screw and piston looks a bit different......(about the gold coloured parts).


Brembo rear cylinder problem Stempe10


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

8Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 16, 2013 2:43 am

Tenox

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@Inge K. wrote:You should have a 13mm cylinder, and the distance piece between the adjuster screw and piston looks a bit different......(about the gold coloured parts).

Oh. I just got what those golden pieces are. They are still attached on my brake pedal, thats why I did not figure them at all. (And they are in teflon finish on my bike...) Still think that my piston and cylinder are 11mm, but I will check that again today. Overhaul kits cost about 60e + shipping (~10e) in Finland so I going with the used cylinder for now.

Edit: Remeasured the piston and it really is 11mm..


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BMW K100RT Scrambler (86)
    

9Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Mon Feb 18, 2013 3:53 pm

Tenox

Tenox
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Well well well.. It seems that someone has fitted some not original rear cylinder to my K. It had this extra metal plate under it but I thought that it was just because there was a broken bolt on the part where cylinder attaches. Now that we got that bolt out and put some new threads on hole it seems that the cylinder wont fit on those original holes (and that is the reason for that extra plate). This explains the 11mm piston too I guess. Lucky that the scrap yard has original one for sale since I dont know how to get an overhaul kit to this cylinder, since I don't know where it is from.

Sure hope that the "new" part fits. Should have it at wednesday and with a little luck the whole bike should be ready then.


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BMW K100RT Scrambler (86)
    

10Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Wed Feb 20, 2013 8:38 pm

Tenox

Tenox
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New cylinder in place and working. Brembo rear cylinder problem 502531


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BMW K100RT Scrambler (86)
    

11Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Wed Feb 20, 2013 11:59 pm

Ed

Ed
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well done Tenox, good to see you're on top of it.


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1993 K1100RS  0194321         Colour #690 Silk Blue  aka " Smurfette"
2018 Kart upgrade.
Brembo rear cylinder problem 10_x_110
    

12Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Thu Feb 21, 2013 8:14 am

klompy the grey brick

klompy the grey brick
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as we say locally "too bloody easy"...onya mate


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KKlompy Brembo rear cylinder problem 2854237993
"Grace" 1984 K100RS Silver VIN 0019026 Mitt eine Staintune Zorst.
"Olivia" 1997 K1100LT Dark Grey VIN WB1052600W0237453.









Chassis number0019026
Vehicle code0503
SeriesK589
ModelK 100 RS 83 (0502 ( 0503 )
Body typeK 100 RS 83 (0502
Catalog modelECE
Production date1984 / 07
Engine0513)

Brembo rear cylinder problem Au-log10


    

13Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Thu Feb 21, 2013 5:27 pm

Tenox

Tenox
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Yes well. As we got the new cylinder on and working and I installed the taillight etc. we found out that brakelights did not work.. Unbelievable or not both front and rear (which atleats in my bike are completele independent) just dead. Had to tear the whole back open again, and all the electrics I had sealed firmly (for the 3rd time) too. I was just so mad that almost set the bike on fire...

Luckily in front there was only a loose connector (must have happenned while changing the handlebars). In the rear it was the new (60 euros) switch. It just died. With 0 road km.. I just cant understand why. And since we thought it would have been wire problem and opened it up a bit there was no guarantee left. So. 60e on me then. Finally I realized that the switches on front brake and clutch are same than on rear brake. Well on my bike clutch switch is not in use, and it actually was OK. So I would not have to buy that new shitty switch at all. Damn! Now the clutch switch is installed on rear brake and works fine.

In case someone wonders, my bike wont start unless I press the front brake. I don't know why the previous owner have done it that way. Suits me. I have no neutral light so it is better to have some kill system on start.

But for the most important thing the bike is now ready for summer 2013. Today installed a rear reflector and did some cleaning on electronics. Tried to start and it fired up instanly. 1st gear on, clutch seems to work perfectly etc. Drove 2 meters on my garage. Smile

About one month and I'm back on the road again!



Last edited by Tenox on Sun Mar 03, 2013 8:15 am; edited 2 times in total


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BMW K100RT Scrambler (86)
    

14Back to top Go down   Brembo rear cylinder problem Empty Brembo rear cylinder problem Thu Feb 21, 2013 5:33 pm

RT

RT
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Well done Tenox, great stamina to hang in there. You deserve a nice summer now.
Congrats mate.
RT


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2011 R1200RT
    

15Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Thu Feb 21, 2013 5:48 pm

Tenox

Tenox
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Thanks! Last summer was not that good, rainy and cold.. Still managed to do little over 10 000km with my last bike (BMW R1200S) and K. Counted that I have been at the garage with K over 100h this winter.


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16Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Thu Feb 21, 2013 7:27 pm

twincarb

twincarb
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Can't start the bike unless the brake is pulled in.... That sounds like a novel security feature to me.... That or the previous owner put the brake and clutch connectors into the wrong holes! I am sure they are the same switch/connector for both brakes and clutch switch....


__________________________________________________
BMW K100LT 1988 Matt Black Peugeot Electra Blue (ELX) Colour is now confirmed...
Yamaha Thundercat
Triumph Spitfire (not a bike but hell it's British chaps)
Brembo rear cylinder problem 169042 Brembo rear cylinder problem 169034
    

17Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Thu Feb 21, 2013 8:51 pm

Tenox

Tenox
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They are same yes since the wire and connector from brake is (was) original and so is the one it goes to (which is the one clutch wiring should go to..). I think that previous owner snapped the clutch switch wires off thinking it would not be needed and realized afterwards that the bike won't start. Wires were cut so closely that we had to solder new wires on the switch. So he decided to use brake switch instead. On the minus side bike did not have brakelights at all when I bought it. Shocked

We had to rewire the front and do the back from the beginning. I just say that if I sold the bike and the next owner would start to look at the electrics he would be thrilled... That's why I think i will renew the wiring next winter. Have done some wiring and I only have too different coloured wires. Brembo rear cylinder problem 112350 So there is lots of red and black wiring and as time goes by no one will ever know what is what and why without thorough testing..

Comes to mind.. Is there any possible harm coming on the fact that I wired the front brakelight switch on the same wire that gives signal to the ECU (I think) that the clutch is pulled and the starter can start? Worked fine last autumn..


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BMW K100RT Scrambler (86)
    

18Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 22, 2013 3:33 am

Inge K.

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@Tenox wrote:Comes to mind.. Is there any possible harm coming on the fact that I wired the front brakelight switch on the same wire that gives signal to the ECU (I think) that the clutch is pulled and the starter can start? Worked fine last autumn..
Shouldn't be any problem, the clutch switch provide power to the starter button
....now you get that via the "brake light switch" instead.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

19Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 22, 2013 4:04 pm

Tenox

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Allright, thanks Inge (been in forum like 2 months and must have thanked you a dozen times so far...). Just waiting for the snow to get the h**l out of here then. How is it in Norway?


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20Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 22, 2013 8:25 pm

RicK G

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Ah it's delightful here in Oz the trees are just starting to colour up and the winter will be a few heavy frosts followed by wonderful sunny days at about 15 degc. Don't you wish you were here it's the best country on the planet, weel I reckon it is. Very Happy Very Happy


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

21Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 22, 2013 8:59 pm

Tenox

Tenox
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Was that an invitation?

Some said that there are lots and lots of dangerous animals and stuff like that down there and otherwise mainly desert. So I dont think I'd want to live there full time. Brembo rear cylinder problem 214585

Actually I could see myself spending like from october to march in Australia... Or anywhere warm. I do somehow like the "four seasons" we have, but the winter is too long and too dark.


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BMW K100RT Scrambler (86)
    

22Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Fri Feb 22, 2013 9:29 pm

RicK G

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Certainly is an invitation and I could probably even arrange a bike for you.
As for the dangerous animals I don't even know of anybody who has been bitten by a snake and one by a spider and I live in the bush on 2 Ha with bushland all around. Do not believe all the bull talked about the dangeroud animals.
Sure crocadiles are dangerous but I made a deal with them I wont swim in their water and they don't come into my house.
The best time to visit is in our winter and just go to the northern half of the country. the southern half is not that cold but is often wet where the north is usually sunny and dry from May to October.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

23Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 12:46 am

Tenox

Tenox
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Only missing the cash and free time then. Rolling Eyes

Well actually not the free time since from may 3rd I will be home with my son till the end of 2013. (My wife goes back to work.) So it's just the money..


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BMW K100RT Scrambler (86)
    

24Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 1:03 am

Themason

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[quote="Rick G"]Certainly is an invitation and I could probably even arrange a bike for you.
As for the dangerous animals I don't even know of anybody who has been bitten by a snake and one by a spider and I live in the bush on 2 Ha with bushland all around. Do not believe all the bull talked about the dangeroud animals.
Sure crocadiles are dangerous but I made a deal with them I wont swim in their water and they don't come into my house.
The best time to visit is in our winter and just go to the northern half of the country. the southern half is not that cold but is often wet where the north is usually sunny and dry from May to October.[/quote]

I was told the salties much prefer Yank tourists so no worries for your guest. Shocked


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

25Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 2:56 am

RicK G

RicK G
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Well they will eat almost anything and if the yanks are the silly ones that go swining there then chomp chomp gobble gobble gulp.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

26Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 3:16 pm

Tenox

Tenox
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After looking at this map: http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Countries_driving_on_the_left_or_right.svg/800px-Countries_driving_on_the_left_or_right.svg.png I realized that I would not never ever be able to drive in Australia. Not with bike anyway and propably not a car too.

You drive on the wrong side of the street!! Other than that it would be nice to stop by. Maybe for a beer then. Expensive beer though since just flights are about 900 - 1400 euros (1150 - 1800 your $.)

I also noted that Namibia is the only nation that has previosly done driving right and then decided to do it wrong. Visited Namibia a couple years ago - wife's brother lives there. Nice place I think.

http://commons.wikimedia.org/wiki/File:Driving_standards_historic.png


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BMW K100RT Scrambler (86)
    

27Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 8:24 pm

RicK G

RicK G
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@Tenox wrote:After looking at this map: http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Countries_driving_on_the_left_or_right.svg/800px-Countries_driving_on_the_left_or_right.svg.png I realized that I would not never ever be able to drive in Australia. Not with bike anyway and propably not a car too.

You drive on the wrong side of the street!! Other than that it would be nice to stop by. Maybe for a beer then. Expensive beer though since just flights are about 900 - 1400 euros (1150 - 1800 your $.)

I also noted that Namibia is the only nation that has previosly done driving right and then decided to do it wrong. Visited Namibia a couple years ago - wife's brother lives there. Nice place I think.

http://commons.wikimedia.org/wiki/File:Driving_standards_historic.png

Sweeden also in mid 60s I believe
Ireland also tried it. First they let the buses and trucks drive on the other side and then if it worked the cars and motorcycles the next week but it didnt work so thr plan was abandoned. Brembo rear cylinder problem 44271


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

28Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 9:52 pm

Tenox

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@Rick G wrote:
Sweeden also in mid 60s I believe

Nope. Sweden went from wrong to right at september 3rd 1967. In traffic I mean - other than that they have allways been wrong in everything. Cool


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BMW K100RT Scrambler (86)
    

29Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sat Feb 23, 2013 11:38 pm

RicK G

RicK G
admin
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So does Sweeden drive on the right hand side of the road now which is the same as the rest of Europe.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

30Back to top Go down   Brembo rear cylinder problem Empty Re: Brembo rear cylinder problem Sun Feb 24, 2013 12:29 am

Tenox

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Yes they do. Only Great Britain and Ireland drive left in europe.


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