I've been reading through quite a number of threads relating to the brake system but I'm a little confused as to what I'm dealing with...
There's been a long term leak of red fluid from the part next to the brake master cylinder but I'm not quite sure what this part is? I'd like to repair it but again, am unsure what kit I need or if it's available. Many thanks for your patience and any advice!
Hydraulic Fluid Leak
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- randall977
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Re: Hydraulic Fluid Leak
it is the brake servo (booster) and it is probably leaking ATF because either
a) the pushrod seal is knackered and/or
b) there is some kind of obstruction in the fluid return line which means the return pressure is higher than normal
There are posts on this site and others detailing how the booster comes apart and how to fix it. IIRC the pushrod seal is held in a plastic housing which itself is sealed to the servo bore via an O ring. Provided the plastic housing isn't cracked both the seal and the O ring can be changed for just a few quid.
hth
cheers
a) the pushrod seal is knackered and/or
b) there is some kind of obstruction in the fluid return line which means the return pressure is higher than normal
There are posts on this site and others detailing how the booster comes apart and how to fix it. IIRC the pushrod seal is held in a plastic housing which itself is sealed to the servo bore via an O ring. Provided the plastic housing isn't cracked both the seal and the O ring can be changed for just a few quid.
hth
cheers
~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- randall977
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Re: Hydraulic Fluid Leak
Many thanks - I will investigate it further...
Re: Hydraulic Fluid Leak
Randall,
For the Brake Boosters, I have a Rebuild service.
Here is a link page to my 14 websites, on big coupe
Just follow the directions in RED to view the captions,
I NOW HAVE A NEW WEBSITE, Link : www.jaysbmwparts.com.
Please save as a Favorite
NEW e-mail LINK : [email protected]
Then go to #1 boosters
Best,
For the Brake Boosters, I have a Rebuild service.
Here is a link page to my 14 websites, on big coupe
Just follow the directions in RED to view the captions,
I NOW HAVE A NEW WEBSITE, Link : www.jaysbmwparts.com.
Please save as a Favorite
NEW e-mail LINK : [email protected]
Then go to #1 boosters
Best,
Last edited by JCS on Sun Oct 31, 2021 11:05 pm, edited 1 time in total.
Jay
'88 M6, Red/Tan
My NEW Website https://www.jaysbmwparts.com/
'88 M6, Red/Tan
My NEW Website https://www.jaysbmwparts.com/
- randall977
- Posts: 264
- Joined: Sun Jan 21, 2018 9:52 am
- Location: Oxford, UK
- Contact:
Re: Hydraulic Fluid Leak
Thanks for that, brilliant write up and photos!