Front brakes locked on

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sproggy
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Post by sproggy »

Last time I rode my S (the week before Christmas) the front RH calliper was siezing on intermittently and I ended up riding just with the rear brake. Got it home, stuck it in the garage and haven't ridden it since. Pulled it out to give it a thorough wash (lying on the ground with a toothbrush kind of thorough!) over New Year and could hardly move it for the siezed brake. Must get around to freeing it off......... :roll:

That's the trouble with having a second bike - lazeiness sets in :oops: Anyway, I'd never intended to ride the S through the worst of the salt so it's not that bad. And when I do ride it again it'll feel fantastic after a few months on a 50bhp Transalp :lol:
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scotty
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Post by scotty »

It sounds an absolute nightmare. I've had my 1999 S for a year now and riden it through the winter months without a problem but I've got the Brembo units fitted. After reading some of the threads I'm counting myself lucky I did'nt buy a newer bike. Does'nt BMW fit these Tokia units to most of their bikes now so the problem could go right through the range ?
BMW R1100S
Triumph Sprint ST 955
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ChasesDragons
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Post by ChasesDragons »

Now that you mention it, I had to clean out similar oxidation in my 1989 ZXR750 and a 1979 CB750.....some people just dont learn, do they!!!

I will either do this myself or get it done by a BMW indy. Might also look at getting two-hose front lines as well.

OOooh! The torx bits are here and I've found my Snap On impact driver :twisted:

Udhi

minivin wrote: SNIPPED FOR BREVITY

Well, with 46k miles on the clock and been having binding brakes for the past 10k with about ten cases of the bike coming to a halt and initially thinking it was pattern part brake pads that were the cause, I stripped my callipers and found this:

The corrosion had got behind all of the dust seals, and behind two of the main seals, pushing the seals hard against the pistons and binding them out.
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sproggy
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Post by sproggy »

ChasesDragons wrote:OOooh! The torx bits are here and I've found my Snap On impact driver :twisted:
Woah there! They're not that tight - 36Nm from memory. If you need an impact driver someone didn't know what they were doing last time they were tightened up.
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ChasesDragons
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Post by ChasesDragons »

I have anger management issues man! :evil5:

Everything is gonna get hammered, coppered/lubed/greased/loctited and hammered again - just to teach the bike should it decide to misbehavin whilst a guest at chez Udhi's.

Bit disapointed with all these "character flaws" on a BMW. :confused1:
Archie
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Post by Archie »

ChasesDragons wrote:Bit disapointed with all these "character flaws" on a BMW. :confused1:
But flaws are what gives a bike character. You'd have nothing to tinker with without flaws......
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sproggy
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Post by sproggy »

ChasesDragons wrote:Bit disapointed with all these "character flaws" on a BMW. :confused1:
At least a BM can have character flaws - on a japanese bike they'd just be flaws :lol:
minivin
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Post by minivin »

Archie wrote:
ChasesDragons wrote:Bit disapointed with all these "character flaws" on a BMW. :confused1:
But flaws are what gives a bike character. You'd have nothing to tinker with without flaws......
But when I have a Land Rover 109 and two Vincent HRD's to keep me entertained with pissy little faults, I was hoping the BMW was going to give me very little trouble for my money..... should have brought the TL1000S I was offered now :roll:
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ChasesDragons
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Post by ChasesDragons »

My second car EVEr was a 1980 S3 Land Rover Lightweight. Looked after me faithfully throughout my nomadic student days (seem to have been kicked out of most student houses in Peckham and Brixton!). I could never get rid of it, even with all the "pissy" fault. 10 years on, It stands in an overgrown patch in a local garage, waiting the final stages of a diesel conversion. My one true love, mate. I can imagine myself driving it when I am 70.

As for the TL.....hmmm. They are like those special dirty, DIIIIRTY girls that you will allways remember from your days of blossoming sexuality. They let you try EVERYTHING, but there is allways a price to pay by body and mind....and you still want more.....anyway, lets not go down that road! Keep away from em, I had two bikes (I mean MOTORcycles :P), got rid toute suite.

Udhi
minivin
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Post by minivin »

:lol: nice euphamism for a TL ;)
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ChasesDragons
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Post by ChasesDragons »

minivin wrote::lol: nice euphamism for a TL ;)
And lets not forget the throbbing......uuuhhhhrrr STOP IT Udhi!!
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horse27
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Post by horse27 »

Sorry to bring this back to the top again but my brakes seized on me at about 80MPH this morning while on the outside lane of the A31. Was a very nasty moment as I had to cut across traffic to get to the verge.

I don't even remember using the brakes to cause the seize in the first place. Both disks were burning hot when I inspected after coming to a halt.

Let it a while and then rode again (very cautiously!) and OK all the way to work (another 20 miles).

I am going to change to braided lines (2-line set up at the front) and get new pads and give it a good clean. 2002 BCR (only with me for 3 months so far) ... 11k miles on the clock.

I have used it through winter but clean it a lot. But then it's a tricky area to clean.

Just wanted to see if the others in this thread have had any joy with dealing with this rather nasty issue.

Cheers, Lee.
Me-109
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Post by Me-109 »

Lee,

You just want to spend money, don't you?! :)

You should be able to get away with a strip and clean - and then do the same for the BCR! :lol:

Hope your heart has calmed back down - that was a close one. Just strip it and give it a good brushing with a brass wire brush, much softer than a steel wire brush so less likely to damage the pistons or strip the paint. Brake cleaner often dries out the seals too much (ironically) so be careful about using that.

I've just done my rear caliper on friday night as that was rubbing a little too much. More likely on a sliding caliper though than an opposed one.
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horse27
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Post by horse27 »

Will do fella ...

Yes, calmed down now ... didn't really know what was going on - thought I had a flat or some bearing had gone or something ... lots of things go through your mind.

Heavy traffic which was the problem as no one lets you get over even if you have got your hazards on! Bloody car drivers :wink:

I wanted to go to braided lines anyway - and I think I might have cooked the pads a little :oops:

But will go with the cleaning option first ... thanks mate, Lee.
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