XT Brake Caliper

[JJDT]

I got a set of Shimano XT brake calipers with one SLX brake lever from my son who in turn got it from one of his friends about 2 years ago.

Currently do have a set of Magura brakes and wanted to swop them with the Shimano (will source another lever). It seems that one of the calipers piston is seized.

Will it be possible to repair or just throw it away?

 

 

[Spinnekop]

Coming from XT and moved over to Magura, I wouldn't swop really if I was you.

The Maguras are doing a pretty damn good job for me at this moment.  
The XT levers in turn feels small and thin compared.

Just putting that out there.

[RobynE 🚵‍♀️]

My Magura are the bees knees. I’ve not had much luck with SLX/XT brakes. 

Are you not enjoying the Maguras?

[Jono]

I successfully rebuilt some Shimano calipers using a compressor to get the pistons out. If you go that route, put a rag in between the pistons so they don’t smash into each other and break when they pop out.

There are guys running shigura set ups (shimano lever, magura calipers) give it a google, never tried it myself, but the guys seem to really like how the set up performs.

[droo]

2 hours ago, JJDT said:

I got a set of Shimano XT brake calipers with one SLX brake lever from my son who in turn got it from one of his friends about 2 years ago.

Currently do have a set of Magura brakes and wanted to swop them with the Shimano (will source another lever). It seems that one of the calipers piston is seized.

Will it be possible to repair or just throw it away?

 

 

Bleed the brake, leave the syringe with some oil in it in the lever, take the pads out, leave the wheel in, and pull the lever repeatedly until the one piston hits the rotor. Once the first piston makes contact the rotor will stop it from popping out of the bore and the other piston will advance. When both pistons hit the rotor, take the wheel out, clean the pistons, push them back in, and repeat until they both advance evenly.

If that doesn't do the job, then with the pistons advanced split the caliper and carefully remove the pistons. Clean pistons and bore, lube the pistons and seals with some mineral oil, replace, reassemble and bleed.

If neither of these work, replace the caliper. But I've done this many times with a pretty high success rate.