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Kit Car Tech Talk And Build Stories => Bristol Kit Car Club Tech Talk - Click Here => Topic started by: peterw on 30, October, 2010, 04:36:16 PM

Title: rear brake bias
Post by: peterw on 30, October, 2010, 04:36:16 PM
As i am just about to plum the rear brakes in on my 2B, i can't remember at what angle the standard Sierra rear bias unit sits at and which is in and out , can anyone help !!!!! :D
Pete
Title: Re: rear brake bias
Post by: foggy on 30, October, 2010, 10:00:25 PM
I have a Haynes Ford Sierra manual 1982-1993, which you can borrow if you want.
Title: Re: rear brake bias
Post by: paintman on 30, October, 2010, 11:19:39 PM
You can come and look at mine if that helps.

  Tony
Title: Re: rear brake bias
Post by: peterw on 02, November, 2010, 06:28:19 PM
Tony, That sounds great ,when would be convenient? I home all week

pete
Title: Re: rear brake bias
Post by: 'Mendip Wurzel' on 04, November, 2010, 05:55:51 PM
Peter, I'm not quite sure what you mean by the rear bias unit, me being stupid. You may have sorted by now however I'm not sure if these photos are any help.

(http://s1.postimage.org/QX5XS.jpg) (http://postimage.org/image/2zhpxovd0/)

(http://s1.postimage.org/QX8s0.jpg) (http://postimage.org/image/2zhrl87us/)
Title: Re: rear brake bias
Post by: YellaBelly on 04, November, 2010, 06:56:30 PM
I think there is a unit that fits into the rear system brake kine and has a ball bearing or something inside which moves under braking and changes the pressure to the rear brakes?

JB
Title: Re: rear brake bias
Post by: peterw on 04, November, 2010, 07:51:58 PM
Yea that sounds like it, they call them a decelleration compensator or something, and depending on what angle its fitted at it changes the pressure to the rear brakes.
Pete
Title: Re: rear brake bias
Post by: YellaBelly on 04, November, 2010, 09:14:08 PM
Yup, that's the one :) ... not that it helps you much with your problem though :(
Title: Re: rear brake bias
Post by: 'Mendip Wurzel' on 05, November, 2010, 05:53:34 PM
Aah, now I know what you mean. I don't have one of the bias things that you have to tilt to get the adjustment right. I have separate brake fliud cylinders for the front and back so I adjust things that way.

Just out of interest I didn't think you were allowed adjustable bias under the new IVA.   
Title: Re: rear brake bias
Post by: YellaBelly on 05, November, 2010, 06:52:31 PM
You can have a bias device fitted, but it must be 'non-adjustable' (i.e. welded or similar) for the IVA apparently.
Title: Re: rear brake bias
Post by: paintman on 05, November, 2010, 07:38:48 PM
Is this the item in question??

(http://s1.postimage.org/qDbS.jpg) (http://postimage.org/image/uw10pac/)


It is set at an angle.....Petes coming over to have a look on Sat. anyway.


   Tony
Title: Re: rear brake bias
Post by: peterw on 05, November, 2010, 08:12:44 PM
Yes, thats the little blighter!!!
Pete :D
Title: Re: rear brake bias
Post by: minijon on 13, January, 2011, 02:03:42 PM
Both my cars have a bias valve fitted .
My road car a 1978GT had no bias valve fitted only a T piece to the rear subframe and I drove it like this for years  ::)       So this explained why my Mini always did a 180'degree rurn in sharp braking  :P. 
Anyway the owner of the most excellent and celubrious Mini parts shop Minimail at Newent sold  me his brake bias valve off his track car and now the car pulls up in a straight line ........ ;)
My Hustler had a brake overhaul some years ago and had the as then new huge bias valve fitted to the the front engine bay - non adjustable and superb .