Leaking ultegra brakes

[kingrollo]

Noticed a lot of play in rear brake yesterday - thought it would be the pads - but they checked out ok.
Took the brake lever cover off then noticed lots of fluid around.

What's likely to have broken here ?

Any ideas to fix - need the bike for sportive next weekend !!!!

 

[SydZ]

Clean the area as best you can then operate the lever several times and watch for where fresh fluid is coming from.

 

[kingrollo]

Clean the area as best you can then operate the lever several times and watch for where fresh fluid is coming from.

Ok thanks. Tried that. Nothing comes out - I think it may be empy !!! Was fine last weekend.?

Is it new brake lever time ?

 

[SydZ]

If you have a bleed kit then top it up and try again. It may just be a simple seal that needs replaced or a compression joint needing attention.

 

[Roseland triker]

You don't need a bleed kit just use a tube and syringe.
I have noticed that the top plug does fail so it could be the o- ring on that.

 

[Roseland triker]

Number 4 is the usual suspect

 

[kingrollo]

Cross threaded top bolt.

New shifter almost £200 !!!

Wouldn't mind but it's not even 12 speed. !!!

 

[Ming the Merciless]

Bleed port o ring, reservoir seal, olive…

 

[Roseland triker]

Cross threaded top bolt.

New shifter almost £200 !!!

Wouldn't mind but it's not even 12 speed. !!!

Who serviced it last time then?
They should pay.,

 

[kingrollo]

Who serviced it last time then?
They should pay.,

"Should"

But in practice I doubt you get any where with such claims.

 

[Roseland triker]

"Should"

But in practice I doubt you get any where with such claims.

Don't ask don't get.
I would certainly approach the person who serviced it.

 

[Ming the Merciless]

What you can do is give it a good clean then squeeze the brake lever hard and see if you can see drops of brake fluid escaping somewhere.

 

[keithmac]

A few wraps of PTFE (or gas fitters tape) might get a good enough seal and bite to keep you going while to source a new one.

 

[Roseland triker]

A few wraps of PTFE (or gas fitters tape) might get a good enough seal and bite to keep you going while to source a new one.

Set the bolt in with some epoxy resin. Fil it with fluid first and fit new pads then you should get at least two sets of pads worth of miles out of it.

 

[keithmac]

Set the bolt in with some epoxy resin. Fil it with fluid first and fit new pads then you should get at least two sets of pads worth of miles out of it.

Yep or maybe Blue Loctite?. I'd be having a go at saving it for £200!.

Even modify the cap with a centre bleed screw so at least you could pump fluid through from the caliper end.