Brake master cylinder leaking

samual · Post by **samual** » Sun May 20, 2012 8:14 pm

Hey guys.

Well my brake master cylinder is putting out fluid from where the electrical switch is on the master cylinder.

And I mean pouring out when pressed in pedal and just very small leaking overnight.

I have tried changing over switch but it has not stopped.

So no new ones available.

Do do I just use a brass plug and bung it up or get another switch or get the master reconditioned.

Steve

samual · Post by **samual** » Tue May 22, 2012 8:16 pm

Anyone?

I about to drop it off to get it recontioned but is going to cost around $220/250.

dexi_styles · Post by **dexi_styles** » Tue May 22, 2012 10:11 pm

samual wrote:Anyone?

I about to drop it off to get it recontioned but is going to cost around $220/250.

I know where I can get an n/a one. Will it be ok? Not sure on its state, but its the only one o know of

Dex

samual · Post by **samual** » Wed May 23, 2012 6:34 am

N/A are not the same..

So the PBR book says..

Thanks Mate..

Callumgw · Post by **Callumgw** » Wed May 23, 2012 7:46 am

et has built in prop valve and N/A is same as exa with external prop valve

C

samual · Post by **samual** » Wed May 23, 2012 8:17 am

Well I have both on the bench at home and the only diff i can see it the springs inside the master cylinder that go to the rear brake lines.

Mine only leaking out of the swtich when pressure is applied.

Was hoping for an easy cheap fix but looks like i have to take it to get rebuilt..

Callumgw · Post by **Callumgw** » Wed May 23, 2012 9:26 am

really? thats very interesting.....N/A with drum rears and Et with discs rears....I betetr file that one in memory for later!, Cheers.

C

samual · Post by **samual** » Wed May 23, 2012 10:22 am

yeah i thought it weird too. Thats why I was going to use it. but maybe the NA one I have was changed over once upon a time to an ET.

But still the springs inside are different.

Shall I post some pics?

Callumgw · Post by **Callumgw** » Wed May 23, 2012 10:23 am

yeah, might help

Post by **tassuperkart** » Wed May 23, 2012 12:31 pm

The GX Pooser (Langley) uses a MC that appears exactly the same as an ET job.
Apparently, it has a slightly different bias to account for the drums on the back.
These MC's are identified by a different number stamped onto the front of the cylinder body. Dunno what it is. Its written about somewhere in here.

Im have tried both ET and GX types on mine chasing different bias.
They will both work but some extra rear brake bias is written about.

L8r
Oracle

Damo · Post by **Damo** » Thu May 24, 2012 3:53 pm

samual wrote:Well I have both on the bench at home and the only diff i can see it the springs inside the master cylinder that go to the rear brake lines.

Mine only leaking out of the swtich when pressure is applied.

Was hoping for an easy cheap fix but looks like i have to take it to get rebuilt..

Numbers stamped into the end to show bias.

IIRC the disc brake one is 1.5 and the drum is 2.6. So the drum brake swap to disc brake'd car would result in more bais to the rears.

Damo

samual · Post by **samual** » Fri May 25, 2012 10:12 am

well its gone to the local brake guy for a rebuild.

Something I feel not to stuff around with is BRAKES..

Thanks for everyones help.

Paul Smith · Post by **Paul Smith** » Thu Jul 05, 2012 6:35 pm

My MC must be leaking into the booster reservoir. Do they sell rebuild kits or do I have to buy a new MC?

samual · Post by **samual** » Thu Jul 05, 2012 7:53 pm

No rebuild kits unless you find one gathering dust somewhere.

I dropped mine off to local brake shop and came back all clean and rebuilt.

$275 bucks later.

Paul Smith · Post by **Paul Smith** » Wed Jul 11, 2012 12:37 pm

I found a place called Bailey's Brake and Clutch that are going to get cups and seals for me. I'll pull it down and fix it myself. I'll have to remove the booster and get the fluid out of it.