Brake Fluid in vacuum Booster

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willyou
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Joined: Wed Oct 16, 2013 11:04 am

Brake Fluid in vacuum Booster

Unread post by willyou » Wed Oct 16, 2013 11:18 am

Will brake fluid in the vacuum booster deteriorate the booster diaphragm? Can the fluid be cleaned out thoroughly enough to prevent any damage? Is it necessary to replace the booster?
Thanks

 

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carriedi
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Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: Brake Fluid in vacuum Booster

Unread post by carriedi » Wed Oct 16, 2013 3:56 pm

brake fluid generally will not damage the diaphragm of the booster. It may damage the metal in the booster. One of the reasons they use brake fluid in brakes is that it won't damage the rubber in the brake system. (well, that and the higher boiling temp) But, brake fluid is hygroscopic, in that it attracts and absorbs water. So things will start to rust up and get corroded. Just get out what you can.
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willyou
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Joined: Wed Oct 16, 2013 11:04 am

Re: Brake Fluid in vacuum Booster

Unread post by willyou » Wed Oct 16, 2013 5:11 pm

carriedi,
Thanks for the info. I'll see if I can find someone with small hands that can reach in and wipe it out. :D
Thanks

jony33
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Joined: Wed Oct 15, 2014 2:53 am

Re: Brake Fluid in vacuum Booster

Unread post by jony33 » Wed Oct 15, 2014 2:54 am

One of the reasons they use brake fluid in brakes is that it won't damage the rubber in the brake system. (well, that and the higher boiling temp) But, brake fluid is hygroscopic, in that it attracts and absorbs water.

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