rears locking up

1. edwcorst Frequent Poster Joined: Jun 2008 Posts: 852

   #1 23rd January 2009, 11:07

   Hi,
   
   my cars lowered 40mm all round (i think it is slightly uneven though at the back) but anyway the rears on my car always lock up under heavy breaking. I heard this might be something to do with the valve spring or something but when i look at the spring its already undone all the way.. what could be causing this?
   
   Cheers
2. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #2 23rd January 2009, 11:10

   the bias valve affects the braking ratio front to back on the car
   if you tighten it up itll pull the bias back to the front and stop the rears locking
3. edwcorst Frequent Poster Joined: Jun 2008 Posts: 852

   #3 23rd January 2009, 11:15

   o right... i was told that you undo the spring to get the rears to not lock up... like the rear thinks there is weight in the back but there isnt... so i need to do it back up ? lol tight or what?
   
   thanks for help
4. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #4 23rd January 2009, 11:18

   whats wrong with back locking up first? I'd prefer that, as my nova used to lock back up, rather have oversteer than understeer
5. edwcorst Frequent Poster Joined: Jun 2008 Posts: 852

   #5 23rd January 2009, 11:20

   no way.... its so twitchy, and car just slides everywhere really dangerous if i have to stop quickly or something..
6. edwcorst Frequent Poster Joined: Jun 2008 Posts: 852

   #6 23rd January 2009, 11:20

   anyone got any pics of what it looks like please?
7. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #7 23rd January 2009, 11:25

   i tightened mine up
   stopped the rears locking up (cause id gone like 75mm down it was well bad)
   when i lowered the car it came loose (was tight at standard height)
   so i assumed it should be tight
   
   worked for me
8. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #8 23rd January 2009, 11:32

   Quote:

   Originally Posted by edwcorst anyone got any pics of what it looks like please?

   pics of what ?
9. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #9 23rd January 2009, 11:32

   oh the screw thing.. my bad still half asleep..
10. edwcorst Frequent Poster Joined: Jun 2008 Posts: 852

    #10 23rd January 2009, 11:36

    yes mate ha ye strange alex... i was told it had to be loose so i left mine as it was already undone.. but it still locks up so i might try tightening it
11. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

    #11 23rd January 2009, 11:37

    yea a lad sed to me after as i was tightening mie i should be loosening
    but it worked so im not gonna change it lol
12. edwcorst Frequent Poster Joined: Jun 2008 Posts: 852

    #12 23rd January 2009, 11:59

    any other peoples opinions ?