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rear brakes nightmare

  • Thread starter Thread starter SeanMora77
  • Start date Start date
Well, I removed the rear brake line from the frame (again) and elevated it higher than the MC and bled. No bubbles, still no building pressure. I'm going to just assume that the line is shot at this point. I ordered a new one last night, once I get it and install it I will let you know the results. Thanks again guys.
 
I am thinking that the pistons are sticky and springing back into the caliper.

I had this problem with my front calipers. They were cleaned and it felt like the pistons went in fine, but they were sticky. What happens is that most of the mechanical movement of the lever goes to moving the pistons. Then when you release the lever they move back into the caliper. It feels just like there is air in the line.

I fixed the problem by getting new pistons and very carefully cleaning the seal groves in the caliper.

Get a hose crimp tool (or make one). Crimp the hose and I bet you will find the MC lever is hard as a rock.
 
The saga continues... I bought a new SS brakeline, installed it today. No dice. So then just out of curiosity I pulled the rubber boot off the MC and there were the seal and snap ring. I took the MC apart again and found that the seal was bent, so after a couple hours of carefully tweaking it back into shape I re assembled everything. Still no dice. I can see the pistons moving in the caliper. Getting real frustrated. Im going to try the rubber mallet method, hopefully a sticky piston. That's about the last hope.
 
That contradicts everything I've read. If that is the order of assembly than I need to tear the MC apart again.:confused:
 
Ed's picture is how mine is put together as well. (I still have the picture of mine on my phone)
 
True, I have nothing to lose. At this point I can have the MC torn apart in no time... Ill give it a shot. Thanks again
 
Gentlemen, we have brakes!! When I opened up the MC the little rubber cup was sideways halfway up the spring, and the little hat looking piece was stuck to the spring. I re-assembled in the order you showed me, primed the MC, bled once and the brakes are solid as a rock. Thank you thank you thank you. I will now be able to sleep soundly at night. As for who ever told me the completely wrong order in which to re assemble, well, Im not going to go digging through my old posts to pinpoint the giver of wrong info but for future reference the order you laid out for me is 100% correct. You guys rock, thanks again!:D:D:D
 
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