Kenzie 
Member 
 
Registered: 16th Sep 07
 Location: Burnley 
User status: Offline 
 
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Iv lowered the rear of my Corsa 100mm, and the brake bias valve needs adjusting to prevent the rear wheels locking up all the time. 
 
Has anybody got any pointers on how to do it? 
 
I know where the valve is etc, but dont want to go messing without any advice just in case i break something! 
 
Cheers in advance chaps   
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gavin18787 
Premium Member
 
Registered: 22nd Feb 05
 Location: Basildon, Essex 
User status: Offline 
 
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I just took the spring out   All seems fine never had it lock up or had any other problems. Just sometimes notice the brakes lack a bit of bite if there are four or five in the car. 
 
Just keep it in a safe place as some people see it as an MOT fail if its not there. 
 
 
Other then that just make yourself a little bracket so that the spring is still in place but is still slack when the car is resting on its wheels
 
  Drives supercharged Tec with torque     
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Gareth F 
Member 
 
Registered: 16th Jan 08
 Location: Location Location 
User status: Offline 
 
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my mate adjusted mine in a few seconds when i dropped mine 90-100mm so cant be hard   didnt watch him tho so i cant say, slide under and have a lookey  
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luke85 
Member 
 
Registered: 26th Nov 07
 Location: Chesterfield 
User status: Offline 
 
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I wouldn't recommend driving it with the spring off but have never tried it so Im not sure. 
 
Adjusting it is easy though but it should be done with the car on its wheels, with no weight in the boot the spring should only just have no tension in it. not slack and flapping about though. when you lower it the spring goes too tight and sends too much pressure to the back wheels.
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davec495 
Member 
 
Registered: 16th Sep 07
 Location: Willington, County Durham 
User status: Offline 
 
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same problem as i am having apart from mine is jammed up so is there any way of just bypassing it because i know not all corsas have it on
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Kenzie 
Member 
 
Registered: 16th Sep 07
 Location: Burnley 
User status: Offline 
 
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Mines looking a bit rusty (the nut) when i had a look the other day...
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luke85 
Member 
 
Registered: 26th Nov 07
 Location: Chesterfield 
User status: Offline 
 
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As far as I know all corsas have it except the van models but someone correct me if im wrong.  
 
It would be easier to get a new one than to bypass it
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john_c20xe 
Member 
 
Registered: 10th Feb 08
 Location: Eastbourne, EastSussex 
User status: Offline 
 
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cover in in penertrating fluid and work it it should free up
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Kenzie 
Member 
 
Registered: 16th Sep 07
 Location: Burnley 
User status: Offline 
 
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job done, cheers people!
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