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Old 06-09-2018, 12:11 AM   #18
tintintin
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Join Date: Sep 2012
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I followed the procedure from the volvoclub.org.uk faq


https://www.volvoclub.org.uk/faq/Bra...9XXJumboBrakes


Bled the system, using almost 1 liter of DOT4, and now have braking only from the rear calipers, specifically the RR caliper. I measured the rotor temps after a downhill with my IR thermometer and the RR rotor was ~ 350degF, while the other 3 were ~130F.


Pedal feels hard, yet not powerful. IOW, it moves easily at first, then stops travel abruptly, as if there were a hard block under the pedal impeding further travel. The brake warning lamp comes on, and the RR tire skids.


Any ideas? I was hoping for a big improvement with those Jumbo brakes!


On the bright side, the alignment feels pretty close.
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