Formula brake piston question

[rowdyflat]

My wife informed me that her brakes were worn.
Both bad one pad down to metal no pad left so the brake piston was way out and as I pushed it back in with a lever , some brake fluid leaked out.
Is that normal if it gets pushed out beyond the seal ?
It doesnt seem to continue to leak when I activate the brake lever now ?

 

[stirk]

Thinking about it logically if the piston is past the seal then it'll leak fluid but I think there is more piston in the caliper so running pads to metal would not pop the piston past the seal. Manufacturer would cater for people running pads to bare metal. Did you squeeze the lever without the wheel in place?

 

[rowdyflat]

Yeah did squeeze it cos I wanted to see whether it would continue to leak but not on the new pads.
I have never seen a piston so far out as I said there was no brake pad material left .. wondered if the piston was past the seal and therefore could leak .

 

[Flow-Rider]

Yeah did squeeze it cos I wanted to see whether it would continue to leak but not on the new pads.
I have never seen a piston so far out as I said there was no brake pad material left .. wondered if the piston was past the seal and therefore could leak .

They shouldn't leak just from a worn brake pad, I've got 2 sets of formula brakes and never experienced it.

 

[moorey]

@rowdyflat i have a set of formula Rx I’m happy to donate you if any use. They came on a bike. Pistons were a bit sticky so I pulled them out and got them moving better.
Handy for spare parts, I only use Shimano. Let me know if you want them.

 

[rowdyflat]

OK thanks Moorey .

 

[moorey]

OK thanks Moorey .

Correction. R levers, RX calipers. Cosmetically, not brilliant. Mechanically, suspect...but seem ok off bike.
Form an orderly queue

 

[rowdyflat]

In case anyone was losing sleep worrying about this ,it now appears that extreme pad wear can cause the piston to be pushed beyond the seal cos now its working Ok ie no brake fluid on the pads.

Manufacturer would cater for people running pads to bare metal.

Not sure about that.

 

[Flow-Rider]

In case anyone was losing sleep worrying about this ,it now appears that extreme pad wear can cause the piston to be pushed beyond the seal cos now its working Ok ie no brake fluid on the pads.

Not sure about that.

What model formula brake are they ? I've got the TS1 and C1's and it has never happened.

 

[rowdyflat]

You dont have a wife that uses the brakes like that do you ?
Oro levers and RX calipers.

 

[Flow-Rider]

You dont have a wife that uses the brakes like that do you ?
Oro levers and RX calipers.

Haha! No comment.
Maybe something to look out for.

 

[moorey]

@rowdyflat, just confirming you don’t want my brakes? Free. I’ll offer to others if not.

 

[rowdyflat]

@rowdyflat, just confirming you don’t want my brakes? Free. I’ll offer to others if not.

Sorry yeah i will take them for spare parts etc thanks.
Move to PM[ Cone of Silence.]

 

[rowdyflat]

Grave dig
In case you lost any sleep pending the outcome of this thread , the caliper has not leaked since so the piston must have pushed past the seal.
I did get some brakes parts out of it thanks Moorey.

 

[moorey]

My pleasure. Good result