Master cylinder question
Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
Master cylinder question
Hi all,
Just a quick one, should the master cylinder have 2 small viewing windows on it made of some kind of rubber?
Havent seen it on any pictures but mine has them!
They are on the side, engine side and on of them is leaking a bit, wondering if its an original part and if i should replace it with the same or swap it for one without those windows.
Many thanks
Charles
Just a quick one, should the master cylinder have 2 small viewing windows on it made of some kind of rubber?
Havent seen it on any pictures but mine has them!
They are on the side, engine side and on of them is leaking a bit, wondering if its an original part and if i should replace it with the same or swap it for one without those windows.
Many thanks
Charles
Melting Slicks
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
Post a couple of pics.
The original one don't have windows on it. I am tempted to advocate for replacing it with the original one, but your car may have an after market brake system that may need the new MC.
If the rest of the brake system is original and the MC that you have is a bolt on replacement, putting the original back on may be a good idea.
The original one don't have windows on it. I am tempted to advocate for replacing it with the original one, but your car may have an after market brake system that may need the new MC.
If the rest of the brake system is original and the MC that you have is a bolt on replacement, putting the original back on may be a good idea.
Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
It has to small see through rubber windows half an inch in diameter engine side...
I dont think i have an aftermarket brake system, they are pretty bad and look stock to me..
Might take a pic when i get the chance and see what you guys think...
Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
actually, here is a pic, you can see them on the side...
Any ideas what that is? Should i change it asap or am i fine for now?
It has two thin rubber plugs, you can actually push on them and they go in , a bit like the small rubber pumps you have on a chainsaw or stuff like that to pump fuel in the carb!
Any ideas what that is? Should i change it asap or am i fine for now?
It has two thin rubber plugs, you can actually push on them and they go in , a bit like the small rubber pumps you have on a chainsaw or stuff like that to pump fuel in the carb!
Last edited by Carlos840; Dec 13, 2009 at 05:28 PM.
Melting Slicks
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
That looks stock except for the windows. I have never seen one like that.
If it is leaking it's a good idea to change it.
Don't forget to bench bleed the new MC. (search on the forum to know how to bench bleed.)
The windows on the MC are pretty fancy actually.
If it is leaking it's a good idea to change it.
Don't forget to bench bleed the new MC. (search on the forum to know how to bench bleed.)
The windows on the MC are pretty fancy actually.
Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
I really wonder where it comes from!
Le Mans Master
Joined: Mar 2001
Posts: 6,639
Likes: 287
From: Ann Arbor Michigan
Never saw anything like that. I wonder if it was a European requirement to be able to see the fluid level without cap removal. Much like they do now with the plastic resovoir.
Gary
Gary
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Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
Soooo, i appear to be the owner of a one of a kind custom made master cylinder!
Nice...
Sent through pm in case somebody wants to know
"Did your corvette come from mainland europe? possibly belgium? Laws there dictate that you should either be able to see the level through a semi transparent reservoir, have a level switch or add sight plugs to be able to see the level. This is what they do to a std. MC to get the car through a SVA type test"
Nice...
Sent through pm in case somebody wants to know
"Did your corvette come from mainland europe? possibly belgium? Laws there dictate that you should either be able to see the level through a semi transparent reservoir, have a level switch or add sight plugs to be able to see the level. This is what they do to a std. MC to get the car through a SVA type test"
Last edited by Carlos840; Dec 13, 2009 at 07:48 PM.
Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
Does anybody know if there is a lot of pressure built up inside the master cylinder when braking or if its just a tank to hold the fluid?
Im just scared that if i brake to hard the rubber covers are going to explode if there is to much pressure, they dont look very tough!
Cheers
Im just scared that if i brake to hard the rubber covers are going to explode if there is to much pressure, they dont look very tough!
Cheers
Le Mans Master
Joined: Mar 2001
Posts: 6,639
Likes: 287
From: Ann Arbor Michigan
Gary
Thread Starter
Racer
Joined: Sep 2009
Posts: 310
Likes: 0
From: London
Im actually talking a bout the peepholes on the cylinder, if that went and i lost all liquid in the cylinder would i loose all breaking power or would i still have a bit of something for a while?
Last edited by Carlos840; Dec 14, 2009 at 06:29 PM.
Melting Slicks
Joined: Dec 2006
Posts: 2,483
Likes: 1
From: Bay Area CA
It's very unlikely that both windows will burst all at once. To be safe, get an MC without the rubber windows and replace it soon.