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51Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Sun Oct 07, 2012 9:37 pm

charlie99


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lol ..

no worries rossco ...just make sure you bring it with you .

    

52Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Mon Oct 08, 2012 2:58 am

col

col
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charlie
would a set of oxy tip cleaners do i have a set


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1991 k100lt "the enterprise"
    

53Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Mon Oct 08, 2012 4:02 am

charlie99

charlie99
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now theres an idea col ....

as long as the right angle section to tip is no longer than about 12 mm in total ...else it wont fit in the hole ..i guess


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OBrake seizure - Page 2 Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

54Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Mon Oct 08, 2012 10:49 pm

K75cster

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I'd like to ask a dumb question? If when blowing down the resevoir tube the air goes out the allready free hole do we have to block it to make it go out the other hole? or is it from the caliper end where we have to blow? i cant get my head around the releif thing for the caliper


__________________________________________________
Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

55Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Mon Oct 08, 2012 11:00 pm

rosskko

rosskko
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Oh please. Not another suggestion. No matter how good it is.
K75ster, I had not thought of that and it would have been a bloody good idea about 36 hours ago.
How better to find a hole than to block all the ones you know about. grrrr.
New brake is in the post now and exhibit A will be placed in a locked, sealed lead lined bag and hauled to the northern parts for closer inspection.
As it was Blakey's suggestion to bring it along, he has first dibs Shocked

K75ster, it is in the master cylinder somewhere, not the caliper.


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

56Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Mon Oct 08, 2012 11:07 pm

K75cster

K75cster
Life time member
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Yep in the master, thats the frownable part to be replaced, because we cant figure out why it wont release pressure off the caliper, all good and clear, sheene used to say answers on the back of a post card, indeed will wait till blakey has perused it


__________________________________________________
Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

57Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Mon Oct 08, 2012 11:22 pm

charlie99

charlie99
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because the equalisation hole aint working as the piston goes past the feed, fluid backfills the behind piston area ...(now in vacume mode )

the pressure now (positive ) behind the piston will not let the piston release back to the normal home position

if the equalisation tube was working it would bypass in the return mode and allow some fluid to go back up to the resevoir ...it would also get rid of the vacume behind the piston in the first place .



make sence ?


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OBrake seizure - Page 2 Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

58Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Tue Oct 09, 2012 4:18 am

rosskko

rosskko
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If there is a mystery hole it is will hidden from me.
I put an old piston in the cylinder, removed the caliper and put air backwards into the system from the nipple.
So if there was a mystery hole, I am assuming some air would come back out the reservoir hole as the main hole is now plugged by the lower (closest to the spring) rubber seal.
None did.
Pushing the piston up and down had no effect.
I looked down the cylinder with a hand lens and there are no more holes. It is clean and shiney all the way down.
I did mention earlier about a ring down near the end of the cylinder.


Found it. At least a co-worker did.
It is a pin prick about 1cm down from the main inlet hole.
Stand by.

See it there?
Brake seizure - Page 2 Brake_11

Made up a cleaning tool from the soft metal clip thing out of a manila folder and the end of a pin.
Hole seems pretty blocked.
Ultrasonic cleaner time. As suggested by ReneZ in post #3. Sounds like good advice, now.




Last edited by rossco on Tue Oct 09, 2012 9:37 pm; edited 4 times in total (Reason for editing : Little prick of a thing)


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

59Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Tue Oct 09, 2012 9:37 pm

rosskko

rosskko
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In we go for a bit of a poke and then home for a ultrasonic bath.

Brake seizure - Page 2 P1010010


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

60Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Tue Oct 09, 2012 9:53 pm

blaKey

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Life time member
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Um, good luck with that. I used a single bristle from a brass cleaning brush. But you never know.

Nothing ventured, nothing gained.


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

61Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Tue Oct 09, 2012 10:56 pm

K75cster

K75cster
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Thanks Charlie got it, checked pic again and still looks like a shadow no wonder it isnt viewed easily, good luck rossco


__________________________________________________
Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

62Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Tue Oct 09, 2012 11:06 pm

rosskko

rosskko
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@blakey wrote:Um, good luck with that. I used a single bristle from a brass cleaning brush. But you never know.

Nothing ventured, nothing gained.
Yes, the pin is way too big. Single bristle will be fitted at home.


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

63Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Wed Oct 10, 2012 12:09 am

charlie99

charlie99
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thats why i thought the primus valve cleaner would be best rossco ....already built ...

hey good find by the way ...

we must take some mesurements to exactly how far in that hole is huh ? then we can be "right on the ball"

good work brother


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OBrake seizure - Page 2 Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

64Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Thu Aug 29, 2013 7:25 pm

wngnutmv

wngnutmv
Silver member
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Hopefully adding to this existing post is correct. I recently lost all fluid from the rear master cylinder due to bad seals. Installed a repair kit, (shaft with seals, spring, and dust boot) the repair kit did not include the parts circled in red in the following image. Nor did I see these parts when I removed the master cylinder. Should my 85 LT have these? (no ABS)

Also, with everything assembled and installed according to the instructions in this thread, I have virtually no rear brake. If I am stopped it will hold the bike, but if I am moving it will not stop the bike. The pedal feels mushy compared to how it felt prior to losing the seals and fluid (it stopped great up until that time). Will try removing the caliper and positioning it so that with the bleeder open any air bubbles will hopefully escape out the top. But that will have to wait until tomorrow.

Any advice is appreciated.


Edit: part 6 appears to be attached to the brake pedal itself. There is nothing similar to the part to the left of part 3.
Brake seizure - Page 2 Mastercylinder_zpseeeb45d2


__________________________________________________
Mike
"Wingnut"
85 K100RT (VIN 0D50672) 70,000+miles
"Gretchen II" (Gretchen von Gearshiften)
    

65Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Thu Aug 29, 2013 9:59 pm

RicK G

RicK G
admin
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Part 6 is the adjuster and most likely will still be in the brake pedal as for the other part I cant imagine it working without it as it is part of the piston mechanism.


__________________________________________________
"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
    

66Back to top Go down   Brake seizure - Page 2 Empty Re: Brake seizure on Fri Aug 01, 2014 3:24 pm

Crazy Frog

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Today I had to replace my brake caliper because it got seized and the seals were cooked. Maybe the link between the pedal and the MC was not correctly adjusted and the return hole was not functioning correctly.

To bleed the brake, I found a good way  Very Happy .
I removed the caliper from the bike and had it standing as high as possible with the bleeder pointing toward the sky. As the air is always rising to the highest point, it was really easy to bleed the system. I used a pump to start then just used the brake pedal to finish. Another advantage is that you can be sitting on the bike to operate the brake pedal and the caliper is right beside you to open and close the bleeder.
As you see on the pic, I had a block between the 2 pads.

Brake seizure - Page 2 Dsc_3310


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Brake seizure - Page 2 Frog15Brake seizure - Page 2 Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

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