SoloTSi97 Posted October 16, 2008 Share Posted October 16, 2008 So I bled the brakes on the XX before wifey and I headed to Deals Gap back in September. At that time, I noticed that applying the front brakes has no effect on the rear caliper. The front brakes work fine, but apparently they're not actually linked. Applying the rear brake does, however, operate both front and rear calipers. In looking at the parts fiche this morning, it looks like the likely culprit is the "second master cylinder" in front. Any been there, done that's that anyone would care to share? I honestly don't know how long it's been this way, since I'm sure I wouldn't notice. But, I tend not to use the rear brake lever at all, relying on the fact that the front lever is supposed to be applying both brakes. -Bob Quote Link to comment Share on other sites More sharing options...
rockmeupto125 Posted October 16, 2008 Share Posted October 16, 2008 Look at the system, and you'll understand how they work. The front wheel has to be rotating to actuate the secondary master cylinder. Applying the front brake at rest does nothing to the rear. Very helpful doing burnouts/smileys. Quote Link to comment Share on other sites More sharing options...
SoloTSi97 Posted October 16, 2008 Author Share Posted October 16, 2008 Interesting ... I'll have to look at that. I assume there is some funky brake bleeding procedure, then. I'll have to dust off the service manual. ;-) Thanks! -Bob Quote Link to comment Share on other sites More sharing options...
lensmanxx Posted October 16, 2008 Share Posted October 16, 2008 On the second master cylinder, at speed, as the pads grip the rotor, one of the caliper pivots. This in turn activates a plunger on the second master cylinder, which in turn transmits the pressure to the rear caliper. Quote Link to comment Share on other sites More sharing options...
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