fitting disk back axle

1. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

   #1 12th January 2013, 11:52

   I am fitting a disk back axle on a car that had drums. Could be a really daft question but on the drum axle the brake lines went straight in to the drums but on the new disk axle they go in to a valve on the axle then from the valve to the brakes. Do I need to use that valve or can I just go straight to the brakes? Saves running new lines? Any help please
2. davidharvey Established Member Joined: Aug 2008 Mull of Kintyre Posts: 1496 Saxo VTR. Pug 407. trabant...seriously VW T25

   #2 12th January 2013, 12:53

   The valve is a brake compensator. It adjusts the braking according to weight in rear of car, I suspect if you remove it then the back brakes would lock and your car would fail an mot, thats if you didnt spin out into a tree or something first.
   
   So my advice would be alter the pipes to fit and keep the valve
3. JoeHindle Established Member Joined: Dec 2010 Preston Posts: 2007 '05 Golf GT FSI

   #3 12th January 2013, 13:01

   Quote:

   Originally Posted by davidharvey The valve is a brake compensator. It adjusts the braking according to weight in rear of car, I suspect if you remove it then the back brakes would lock and your car would fail an mot, thats if you didnt spin out into a tree or something first. So my advice would be alter the pipes to fit and keep the valve

   What he said, the disc beam on mine doesn't have one, under heavy breaking with a small amount of steering then it locks up, and can be quite scary, so just be careful..
   
   Sent from my Nexus 7 using Tapatalk 2, to piss Chr15 off.
4. saxoboi85 Infrequent Poster Joined: Mar 2012 Co.Wexford Ireland Posts: 127 Citroen saxo vtr Citroen Mechanic

   #4 12th January 2013, 13:09

   Hi I'm a Citroen mechanic if you remove the valve you will have all the brake pressure go to to the rear so you need to have the valve to get the correct braking but you will also have to change the master cylinder under the bonnet as the drum one does not have the right amount of fluid transfer if you look it's easy to change the cylinder only two bolts and 4 pipes as for the rear axle you can just go to a beakers and get the to rear pipes there about a meter half in length and unbolt under the pass side floor pan.
   
   Also remember to check the valve ain't seized or you will have brake problems the valve needs to move freely in and out also best advice is do not touch the adjuster screw on the valve as it will be set up correct
5. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #5 12th January 2013, 14:10

   My recommendation is to make new lines and get a new valve if going the standard route. That of leave the valve in some deox-c for a while so it's not totally rusted up ie the adjuster screw
6. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

   #6 12th January 2013, 14:20

   Thanks lads will do that