Number of posts : 418
Age : 82
Location : Mt Prospect IL 30 miles west of Chicago
Points : 4214
Registration date : 2010-03-03
|Subject: Brake fluid reservoir vent. Sat Aug 20, 2016 9:11 pm|| |
From time to time the question has come up weather the brake fluid reservoir is vented. I think this picture will show how it is vented to the atmosphere. Howard
Last edited by NWSSC on Fri Aug 26, 2016 8:53 pm; edited 1 time in total
Silver Wing Guru
Number of posts : 2577
Age : 77
Location : Medford, Oregon
Points : 6684
Registration date : 2009-07-17
|Subject: Re: Brake fluid reservoir vent. Sat Aug 20, 2016 11:58 pm|| |
Your link doesn't work unless you have a Google account which is something I don't have or want.
I'd argue that the Silverwing as well as the Goldwing do not have direct atmospheric venting. There is a flexible diaphragm on top of the fluid that prevents contact between the brake fluid and the air. The diaphragm follows the surface of the fluid in the reservoir as it drops due to brake pad wear with out allowing vacuum to built up on the fluid in the reservoir.
The reason is that brake fluid is highly hygroscopic. It will absorb moisture from the air. Most service manuals will say only to use fluid from unopened containers of brake fluid to insure no moisture is introduced into the system. Water will cause corrosion in the brake system.
Silver Wing Expert
Number of posts : 851
Location : Telford, UK
Points : 2950
Registration date : 2014-11-20
|Subject: Re: Brake fluid reservoir vent. Sun Aug 21, 2016 6:44 am|| |
- exavid wrote:
- Your link doesn't work unless you have a Google account which is something I don't have or want.
I have a google account & it doesn't work for me