Brake question - Page 2 - Jaguar Forums - Jaguar Enthusiasts Forum

Notices
XK / XKR ( X150 ) 2006 - 2014

Brake question

 
  #21  
Old 01-30-2019, 05:05 PM
CleverName's Avatar
Veteran Member
Join Date: Dec 2011
Location: Pacific Northwest
Posts: 3,174
Thanked 685 Times in 519 Posts
Default

Originally Posted by jagtoes View Post
With those cars I would use a different color brake fluid and bleed the system.
That was my practice as well. Sadly the US government stepped in and made any color other than amber illegal to sell here. Superblue had to pull all their shelf stock. Grrrrr
Still not hard though as older or contaminated fluids are easy to distinguish from new.

Vince

 
  #22  
Old 01-31-2019, 03:23 AM
neilr's Avatar
Member
Join Date: Sep 2014
Location: Germany
Posts: 84
Thanked 24 Times in 18 Posts
Default

Originally Posted by cubist View Post
Hi There,
One thing to consider is that Brake Fluid is hygroscopic so can and will absorb moisture over time. As the moisture is not compressible it can appear that the brakes are soft and/or there is more travel on the pedal. It's generally recommended to replace the brake fluid every two years.
Cheers,
Cubist
Not quite. Liquids are effectively non-compressible and that is exactly why they are used in hydraulic systems. Mechanically, cold water would work fine. When it boils though, it turns into a gas which is compressible and water boils at a much lower temperature than brake fluid making it less suitable for systems that generate heat. Having to compress any gas in the system before being able to transmit pressure over the liquid is why the pedal goes long. Too much gas and the system cannot transmit any appreciable pressure to the pistons and you have a brake failure.

 
  #23  
Old 02-03-2019, 01:07 PM
JaguarJeffrey's Avatar
Senior Member
Thread Starter
Join Date: Aug 2016
Location: Southwest
Posts: 202
Thanked 66 Times in 47 Posts
Default

Originally Posted by MarkyUK View Post
More specifically moisture.

The more I read forums the more I am amazed at the lack of the most rudimentary of automotive knowledge.

'Jeffrey' in the UK is an old name, and one not held by many under 60. If the OP is of that age group he should be ashamed of not changing his brake fluid every 2yrs...but at least he's learnt sommat new...which he will (hopefully) retain
My parents named me "Jeffrey", as they wanted something that would look good on an office door. That was back in the 1960s, so, no, I am not over 60 . . . yet. Rather a more common name on this side of the pond, though.
 
  #24  
Old 02-03-2019, 01:29 PM
Queen and Country's Avatar
Veteran Member
Join Date: Mar 2015
Location: Hastings
Posts: 4,679
Thanked 1,044 Times in 778 Posts
Default

Originally Posted by JaguarJeffrey View Post
My parents named me "Jeffrey", as they wanted something that would look good on an office door.
It sounds good too.
 
The Following User Says Thank You to Queen and Country For This Useful Post:
JaguarJeffrey (02-03-2019)
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
texevora
XF and XFR ( X250 )
23
10-31-2015 09:43 AM
rx8rotary
XJ6 & XJ12 Series I, II & III
2
08-19-2010 09:13 PM
aladamson
X-Type ( X400 )
6
03-10-2009 08:36 AM
rajinder75
X-Type ( X400 )
9
10-14-2008 11:42 AM
NMH1977
X-Type ( X400 )
5
11-30-2007 10:55 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Brake question


Advertising
Featured Sponsors
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: