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Author Brake Bias After Lowering
Phil W
Member

Registered: 1st Jul 05
Location: Shropshire Drives : Focus ST
User status: Offline
21st Aug 05 at 21:11   View User's Profile U2U Member Reply With Quote

Hi all,

Been told that this changes after you lower the car.

How/where can i get it adjusted so it is set up correctly ?

Cheers

Phil
ed
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Registered: 10th Sep 03
Location: Northampton Drives: Fiat 500/Porsche Boxster
User status: Offline
21st Aug 05 at 22:26   View User's Profile U2U Member Reply With Quote

VVV Look at the bottom here in related threads. OR search. VVV
Phil W
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Registered: 1st Jul 05
Location: Shropshire Drives : Focus ST
User status: Offline
22nd Aug 05 at 13:06   View User's Profile U2U Member Reply With Quote

Have searched but they dont really answer my question all too well, a little vague !
Will_Sport
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Registered: 28th Jun 04
Location: Notts
User status: Offline
22nd Aug 05 at 14:51   View User's Profile U2U Member Reply With Quote

check rear beam, there is a spring attached that controls how much rear brakes are used (ie, more weight in back it uses drums less i think)

i've lowered mine 40mm about a year ago, it eats brake drum shoes for dinner lol, although 30 to replace em every 8 months aint much.
Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
22nd Aug 05 at 15:07   View User's Profile U2U Member Reply With Quote

never touched mine... its ok, lowered 60mm
boyracer2002
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Registered: 10th Aug 02
Location: West Yorkshire
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22nd Aug 05 at 15:18   View User's Profile U2U Member Reply With Quote

never bothered with mine either :lol; was siezed up sorted it out but still not adjusted it
R Lee
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Registered: 15th Aug 03
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22nd Aug 05 at 15:18   View User's Profile U2U Member Reply With Quote

its dangerous when you brake hard.
the back end brakes very hard and starts to want to pull out.

boyracer2002
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Registered: 10th Aug 02
Location: West Yorkshire
User status: Offline
22nd Aug 05 at 15:22   View User's Profile U2U Member Reply With Quote

never noticed that either altho front brakes are that big they do all the work and rear discs dont feel to
Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
22nd Aug 05 at 15:25   View User's Profile U2U Member Reply With Quote

never had a problem either
marklawton
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Registered: 24th Apr 05
Location: Pensby, Wirral Drives:Golf mk4 GTI
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22nd Aug 05 at 15:44   View User's Profile U2U Member Reply With Quote

ive never had a problem since mines been lowered 60mm
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
22nd Aug 05 at 20:46   View User's Profile U2U Member Reply With Quote

i have adjusted mne, the car used to become 'nervous' under hard braking. You need to slacken the nut and bolt above the back axle on the load proportioning valve which holds the spring. It is the rear most nut and bolt. Pull it as far back as you can and re tighten. This will be easier when the o/s/r corner of the car is jacked up. Mine is loads better now, so much more confidence inspiring under heavy braking.
Phil W
Member

Registered: 1st Jul 05
Location: Shropshire Drives : Focus ST
User status: Offline
22nd Aug 05 at 23:14   View User's Profile U2U Member Reply With Quote

Cheers for that info steve, i'll give it a bash tomorrow...

o/s/r, i always get confused, passenger side ?
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
23rd Aug 05 at 06:56   View User's Profile U2U Member Reply With Quote

o/s/r is drivers side
Siberia
Member

Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
23rd Aug 05 at 11:06   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by SRi-Co
never touched mine... its ok, lowered 60mm


have u tryed braking hard? have you deffo got a bias valve?

i braked hard in the misus's tigra after droping it on its arse... nearly ending up in hedge when the rear wheels locked up...
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
23rd Aug 05 at 16:06   View User's Profile U2U Member Reply With Quote

If lowered 60mm and no adjustment made then it must be a right handlful under heavy brraking unless it is siezed.
James@CCC
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Registered: 10th Nov 03
Location: Eaton Bray, Bedfordshire
User status: Offline
23rd Aug 05 at 16:16   View User's Profile U2U Member Reply With Quote

im lowered 60mm and havent done anything. i guess i should after reading this!

My brake are pretty wank, so i just thought this was y braking hard was dodge.

wot exactly do i have to tighten and how much? anyone got any pics?
gavin18787
Premium Member

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Registered: 22nd Feb 05
Location: Basildon, Essex
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23rd Aug 05 at 16:47   View Garage View User's Profile U2U Member Reply With Quote

I belive its only 1.4 and above that have this problem as any smaller corsa up to 1.2 have a differnt system based on how much weight is in the rear.

Can go dig out the haynes manual if you want more info as i think this is where i read it


Drives supercharged Tec with torque
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
23rd Aug 05 at 17:01   View User's Profile U2U Member Reply With Quote

There are two types one that can be adj and one that cant. The type that can be ady uses a spring type valve above the axle and the type that cant be adj uses two in line valves
James@CCC
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Registered: 10th Nov 03
Location: Eaton Bray, Bedfordshire
User status: Offline
23rd Aug 05 at 17:02   View User's Profile U2U Member Reply With Quote

mine was a 1.2, got xe'd tho. i guess i cant change it then?
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
23rd Aug 05 at 17:37   View User's Profile U2U Member Reply With Quote

No you need to check it. mine is also 2.0XE does not make any difference because it is a 1.2. Simply some corsas had one type and some the other.
James@CCC
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Registered: 10th Nov 03
Location: Eaton Bray, Bedfordshire
User status: Offline
23rd Aug 05 at 17:41   View User's Profile U2U Member Reply With Quote

wot exactly am i lookin for? lol, sorry for being slow!
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
23rd Aug 05 at 18:00   View User's Profile U2U Member Reply With Quote

Hope fully if yours is adjust able look under the rear of the car and look across the back axle at the drivers side. hopefully youwill find a large coil spring with a hook at the rear. If you do then undo the nut and bolt untill it is slack.You may need WD40 if siezed. Once free pull the nut and bolt as far back (towards the rear of the car as poss) and re tighten
mwg
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Registered: 19th Feb 04
Location: South Lakes
User status: Offline
23rd Aug 05 at 18:15   View User's Profile U2U Member Reply With Quote

Never done mine and my car stops fine no matter how hard I press the brake pedal! Although it does go through brake shoes a bit quicker than I think it should
Phil W
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Registered: 1st Jul 05
Location: Shropshire Drives : Focus ST
User status: Offline
23rd Aug 05 at 21:25   View User's Profile U2U Member Reply With Quote

I think its probably the main cause of my brake judder, uneven braking, which i hope to solve by sorting this out

If i have any problems is it ok to PM you with questions, Steve ?
Steve Smith
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Registered: 28th Nov 00
Location: Doncaster, South Yorkshire
User status: Offline
24th Aug 05 at 07:18   View User's Profile U2U Member Reply With Quote

This wont cause brake judder alhough uneven braking may have something to do with this. During high speed braking my car would step out to the left. Not good. Yes you can u2u me. If your struggling i may be able to take some pictures.

 
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