matt_w Posted September 16, 2009 Share Posted September 16, 2009 So I just got my car back on the road, and part of the upgrade was the 4x4 calipers up front, a rear disc conversion, braided brake lines, and the bigger master cylinder (this is on a 73 240z). When I go to press the brakes, the pedal goes in about 2-3 inches (I'm assuming this is an adjustment problem), and then the brakes come on REALLY strong. The pedal only goes maybe another 1-2 inches down and I can't push it in at all anymore, but it's still quite a bit ways from being all the way in. It's a little annoying because it feels like the brakes are either "off" or "on!!!!!", with not much room in between. I did play around with the plunger length a little bit (the plunger that goes into the master cylinder) when I swapped to the bigger one. So I guess my questions are: How do I adjust it so the brakes come on as soon as I push in the pedal? Why can't I press the pedal down all the way when the car is running? (I can when it's off) Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 16, 2009 Share Posted September 16, 2009 Do some searching. You'll probably need to adjust the rod between the booster and the master and also might have a reaction disk problem. Search reaction disk and you should find all the info you need. Quote Link to comment Share on other sites More sharing options...
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