street dreams

the reason why i am asking is because i did this master cylinder upgrade and the next day my brake booster started leaking and its leaking from the back side that connects top the fire wall and i wanted to see has anyone else had this problem or did my brake booster just happen to go bad all of a sudden
and the upgrade is a 91 civic ex brake master cylinder on a 92-95 civic and heres the original post https://honda-tech.com/zerothread?id=364783

poison

I used a GSR brake booster, and an Integra RS master cylinder.

Bolted right up.

singlecam screamer

i did it here's a pic and it's awesome
and no problems so far

poison

That is a very nice set up you got there. That header is massive.

singlecam screamer

thanks

street dreams

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poison &raquo;</TD></TR><TR><TD CLASS="quote">I used a GSR brake booster, and an Integra RS master cylinder.

Bolted right up.</TD></TR></TABLE>yeah i did not ask u that
so to the people who have done the91 master on a 92-95 car what are your experiences

43MA

done it
but if i were to do it again i would do stock rs

stock civic booster is still too small

singlecam screamer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by streetdreams02 &raquo;</TD></TR><TR><TD CLASS="quote">yeah i did not ask u that
so to the people who have done the91 master on a 92-95 car what are your experiences</TD></TR></TABLE>

dude take it easy he was just trying to give some input,but the master cylinder is the best upgrade yet

street dreams

so do u guys think my brake booster just went bad or could i have bleed the brakes the wrong way any help deeply appreciated<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by streetdreams02 &raquo;</TD></TR><TR><TD CLASS="quote">yeah i did not ask u that
so to the people who have done the91 master on a 92-95 car what are your experiences</TD></TR></TABLE>and to this comment yeah i was having a bad day because i can't drive my car

street dreams

back to the top

civictypenos

if its leaking from the rear of the master cylinder(between the MC and booster),then the MC is bad,bad seal.there should be no fluid coming out of the rear at all.the only thing in the rear is the cup where the plunger goes.then it has a seal in there to keep the fluid in the MC.

BatuKing

To do a basic booster test do this.. turn off the car and pump the brakes untill the pedal becomes hard and it should be more towards the top.. then turn on the car if the pedal sinks then your booster is fine..

I would think your master is going out since your leaking fluid and prob the rear cupseal (which keeps the fluid in on the primary piston) is torn.

take out the master then inspect it .

and yes upgrading the master to the 15/16ths will make a difference.

2lua

same here. i think your mc seal is going bad.

dualknuttz1

I used Tom's idea of the 91 EX brake cylinder. Fits and works great. My stock DX MC was also leaking. Every time I stepped on the brakes and held it, it would slowly sink to the floor until I felt this click and then no more pressure. Got it new for like 80 bux through a friend from his shop. It bolts right on without any problems. If you changed just the cylinder then I don't think it will affect the booster. Maybe just a bad booster.

ill phil

I should be picking one up soon and will post back with my thoughts on it.

B_CRUZ!

i did it. no problems at all.

Cee_mon

would the upgrade be benifical if you had rear drums?

elwood

This is ridiculous. You guys are spending way too much money on
master cylinders. If yours goes out you can buy a rebuild kit for around
$10. And if you want an upgrade (recommended, I love my 1") you should
just buy the non abs jdm ones. Just get the booster with it and it bolts right
up. I have been selling them left and right for $50 shipped.

oh, works great with rear drums.

street dreams

no its leaking from the back of the booster where the booster meetsthe firewall and is there a seal back there too its sealing were the mc meets the brake booster and too i just put rear disc and new brake lines all the way arond, and could there be air still in the lines that could be cause it to leak from the back of the booster

allthe help is appricaited and the brakes work fine i am just worried about the leaking

street dreams

bump

street dreams

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by streetdreams02 &raquo;</TD></TR><TR><TD CLASS="quote">no its leaking from the back of the booster where the booster meetsthe firewall and is there a seal back there too its sealing were the mc meets the brake booster and too i just put rear disc and new brake lines all the way arond, and could there be air still in the lines that could be cause it to leak from the back of the booster

allthe help is appricaited and the brakes work fine i am just worried about the leaking</TD></TR></TABLE>
bump please some one who is experience w/ brakes answer this question

Doctor CorteZ

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by streetdreams02 &raquo;</TD></TR><TR><TD CLASS="quote">no its leaking from the back of the booster where the booster meets the firewall </TD></TR></TABLE>

the fluid is coming from there , the leak is from your master cylinder.

did you buy a used or reman or new or what ?

civictypenos

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by streetdreams02 &raquo;</TD></TR><TR><TD CLASS="quote">
bump please some one who is experience w/ brakes answer this question</TD></TR></TABLE>

there is NO fluid in the booster.if its leaking back there and if it is brake fluid then its your MC.the booster is just a big open canister thing,nothing inside of it.

street dreams

thanku thanku thanku that is what i was trying to figure out i bought the mc from pep poys and it was a reaman.