brake master cylinder leaking between it and the booster, gasket maybe?
04-17-2006, 04:00 PM
#1
brake master cylinder leaking between it and the booster, gasket maybe?
There is a bad leak coming between the master cylinder and the booster thing (I think it's called). Is there a gasket needed to be changed or the whole master cylinder?
04-17-2006, 05:33 PM
#5
yeah, the brake booster is all vacuum and has no fluid in it so definitely no gasket there
Like greenmax said, you're probably looking at a new master cylinder. I had the exact same thing happen on my prelude
Like greenmax said, you're probably looking at a new master cylinder. I had the exact same thing happen on my prelude
04-17-2006, 11:27 PM
#7
I don't have to abs and I looked at the chiltons and it didn't look like it was too hard to change. Any additional info on it before I do it?
Also, why is it leaking since there is no worn gasket there?
Also, why is it leaking since there is no worn gasket there?
04-18-2006, 06:26 AM
#8
there are several rubber o-ring seals inside the master cylinder itself. those are what's leaking and they always leak out the back (open) end of the MC. the fluid will run down the brake booster in between them.
fix it quick and be sure to clean out all the gunk on the brake booster, otherwise it will eat through the rubber on the booster and you'll wind up changing it as well. and that is NOT FUN. trust me there.
As for changing the MC, it's not hard.. couple bolts holding it to the booster and the 4 lines. with some of them you have to swap over the reservoir.. just pry the old one out with a screwdriver and clean it really well so it's nice and pretty. let it dry in the sun for a while to remove all moisture, then lube the fittings with clean brake fluid and press back into the master cylinder.
then be sure to bench-bleed it as per the instructions. If not, you'll have spongy brakes for decades!!
then connect the lines back up and bleed the entire system again and you're good.
fix it quick and be sure to clean out all the gunk on the brake booster, otherwise it will eat through the rubber on the booster and you'll wind up changing it as well. and that is NOT FUN. trust me there.
As for changing the MC, it's not hard.. couple bolts holding it to the booster and the 4 lines. with some of them you have to swap over the reservoir.. just pry the old one out with a screwdriver and clean it really well so it's nice and pretty. let it dry in the sun for a while to remove all moisture, then lube the fittings with clean brake fluid and press back into the master cylinder.
then be sure to bench-bleed it as per the instructions. If not, you'll have spongy brakes for decades!!
then connect the lines back up and bleed the entire system again and you're good.
04-18-2006, 08:24 AM
#10
Originally Posted by MAXI
idiot question here.....
what is bench bleed? and how to do?
what is bench bleed? and how to do?
04-18-2006, 11:19 AM
#13
Originally Posted by 93MaxMurf
i also have a brake fluid leak, what should i check to see if it is the break lines or the master cylinder that is leaking?
.
04-20-2006, 10:51 AM
#24
Originally Posted by MAXI
idiot question here.....
what is bench bleed? and how to do?
what is bench bleed? and how to do?
1. Buy new MC.
2. open box.
3. read instructions inside box.
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