R1200GSA rear brake caliper slider siezed

[mpgscott]

Hi Folks,

Bike has been sat idle for sometime due to being away with work, i noticed that the rear slider is seized, bike is a 2012 so anyone got experience of how to take this apart and try and un-seize??

Had a hunt on google cant really see anything that explains how to take it apart, i cant see any means to get it apart anyone any pointers??

Cheers
Mark

 

[Roymondo]

Same happened to my 2011 GSA (although it had never stood for more than a few days). Bought a used caliper from eBay.

Sent using smoke and mirrors

 

[AustinW]

No clever tips or inside knowledge but it's happened to me on several bikes. Take it off the bike. Then judiciously use releasing oil, Levers, hammers, vice, heat, etc etc etc. until it comes apart. Try moving it together first as that might be easier than apart but once the corrosion is "cracked" it will come apart. Get a new set of seals clean it all up and add silicon grease and or copperease where necessary.

Or, a secondhand one that you know comes apart and can be greased up before fitting it.

Or, just ignore it. The brake will still work but a bit weak (but hey? It's a back brake so just don't use it). Ride the bike but keep an eye on the pads as one side will wear way faster than the other.

 

[mpgscott]

Thanks for the pointers as usual folks.

Got it off and found the problem, it was a small nick in the rubber that's obviously let water in. So have cleaned it all up and it's nice and free then put a good amount of copper grease in there. So now I bet you can't buy the rubber seal, it will be that whole bottom piece any ideas anyone??

She is nice and free now, God it was solid like.

 

[seahorse]

Thanks for the pointers as usual folks.

Got it off and found the problem, it was a small nick in the rubber that's obviously let water in. So have cleaned it all up and it's nice and free then put a good amount of copper grease in there. So now I bet you can't buy the rubber seal, it will be that whole bottom piece any ideas anyone??

She is nice and free now, God it was solid like.

Ruber boots are available, see Motorworks

 

[fizzer]

mine too,but it was the sliders that needed to be free,ed off and re greesed,main piston in the rear caliper was fine

 

[Steptoe]

To help prevent the rear caliper from seizing on the sliding pins once a month place your foot on the caliper, hold the subframe and push with your foot so retracting the caliper pistons and the caliper to slide the full length along the pins.
Don't forget to press the brake pedal a few times before riding off

This keeps the caliper free as in general use they barely move over long periods of time which encourages them to seize.

 

[patzx12]

All vehicles need a caliper strip and clean + copper grease periodically regardless of use.
It quick and easy to do.

 

[patzx12]

If you need a caliper, I have a couple of 05 / 06 calipers.

 

[DrFarkoff]

Shouldnt really be copper grease but rubber or silicone grease as the mineral grease part may affect the rubber of the boots

 

[alex_rsa]

Shouldnt really be copper grease but rubber or silicone grease as the mineral grease part may affect the rubber of the boots

This is the stuff you need, available form eurocarparts for £2.99

 

[Bendy toy]

If you fit new piston seals use red rubber grease. Seals working normally will distorting slightly when brake applied then pull the pad away from the from the disc. As the pas wear the piston will gradually slip though the seal. When the pistons slip too easily, the seals can't pull them back so the brake binds. Silicone grease is fine on the slides but its too slippery for the piston seals.

 

[younger06]

If you need a caliper, I have a couple of 05 / 06 calipers.

Holy thread revival!!!!


Pat,do you think one of those calipers would fit my 2007 GSA ???