How did brake fluid get inside my brake booster?

[jamesweyand]

And how do I get it out? So, my brake pedal goes all the way to the floor and I get another master cylinder to replace my original. I'm getting ready to put the new master cylinder in and I notice there is brake fluid inside the brake booster, and not just a little bit either. There is a pool of brake fluid up to within a 1/2 inch of the edge of the master cylinder hole. What would cause brake fluid to be inside my booster and how do I fix it?

Almost as important is how do I get the brake fluid out and does it have to be completely dry inside a brake booster or can the walls still be a little oiley?

Thanks for your knowledge as you can see I'm lacking in that department right now,
Jim
2O6 725-CELL

Side note: This '82 Alfa Romeo Spider Veloce with hardtop might be for sale soon if anyone is in the Seattle area and wants to take a look at it.

[Tifosi]

The seal on your master cylinder let go and every time you press the brake, a bit more fluid squirts past and into the booster housing. Replacing the MS will cure that.

To get it out of the booster, a syringe or turkey baster can be used for the majority of it, then a swab in some kind of suitable holder (like mabe a rifle bore patch eye perhaps) to get as much residue as you can access.

The drier you can get it the better as it'll eventually put the rot to the diaphram, which won't cause a brake failure, but will cost you the vacuum assist and make the brake pedal really hard. It'll also create a vacuum/false air leak when it goes.

[Alfajay]

Quote:

Originally Posted by Tifosi The seal on your master cylinder let go and every time you press the brake, a bit more fluid squirts past and into the booster

[1750GT]

Sorry about this post(I messed it up a bit)....but on one of my boosters (albeit not like the later ATEs ) the fluid leaked into the chamber and did some damage....just a little.....sorry about the other non relevant photos.

[1750GT]

...deleted this as well..sorry