brake booster

gcef89 · Post by **gcef89** » Tue Sep 27, 2011 10:49 pm

ok so i just replaced my master cylinder and brake booster and my brakes still aren't working, they aren't compressing all the way out and my brake booster is leaking at the firewall what could this be? car is a 91 civic si stock brakes

JustRob · Post by **JustRob** » Tue Sep 27, 2011 11:37 pm

Did you bench bleed the master cylinder? Did you check the master cylinder pushrod-to-piston clearance?

gcef89 · Post by **gcef89** » Tue Sep 27, 2011 11:58 pm

no i did not bench bleed the mc didnt know i was suppose

JustRob · Post by **JustRob** » Wed Sep 28, 2011 1:26 am

gcef89;275044 wrote:no i did not bench bleed the mc didnt know i was suppose

This is most likely your issue, or at least part of it. Here is a decent DIY on how to do it. I like to use a couple brake line fittings with the lines routed to the bottom of the master cylinder reservoir. I found this to be the easiest and cleanest way to do it.

http://autorepair.about.com/od/fixityou ... leed_4.htm

gcef89 · Post by **gcef89** » Wed Sep 28, 2011 1:50 am

thanks i guess ill be doing that tomorrow!