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Author help...juddering under breaking!
essexracer
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Registered: 11th Apr 02
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   18th Dec 03 at 19:35   View User's Profile U2U Member Reply With Quote

right iv just got back from uni and i aint used my car in just over a month.

thing is, last time i used it, wen i used the breaks, the car juddered very badly, especially wen breaking hard!

as i didnt have time to do anything about it, all i did was checked the front disks and pads (which have done about 10k miles since i last change them) and they seamed fine!

since buying my car i have done about 20k miles and have never changed the rear shoes in the drums.

so am i right in assuming that i will need to replace the shoes? or do u think it may be sumic else causin the juddering?

is it hard to change the shoes? (i have a haynes manual somewhere, will av to dig it out! )

also when changing the shoes, does the breaking fluid need bleeding?



cheers,
james
broster
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Registered: 6th Dec 02
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18th Dec 03 at 19:37   View Garage View User's Profile U2U Member Reply With Quote

warped discs?
Kris TD
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Registered: 25th Mar 02
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18th Dec 03 at 19:39   View User's Profile U2U Member Reply With Quote

sounds like the front discs are warpped.

best upgrade them too 2l spec at the same time.
essexracer
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18th Dec 03 at 19:40   View User's Profile U2U Member Reply With Quote

no they are not! i checked the discs and pads and they are fine...the pads are still thick enough, and the disks are worn evenly (still plently of life in them as with the pads) , not worped at all.

james

[Edited on 18-12-2003 by essexracer]
broster
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18th Dec 03 at 19:41   View Garage View User's Profile U2U Member Reply With Quote

they may be new but can still warp!
essexracer
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18th Dec 03 at 19:44   View User's Profile U2U Member Reply With Quote

ok fair enough, but as said, my disks and pads r fine.


wen the rear shoes need changing does it make the car judder?

wat else could it be???


james
MarkM
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Registered: 11th Apr 01
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18th Dec 03 at 19:53   View User's Profile U2U Member Reply With Quote

is there a lip on edge of disk?

Kris TD
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18th Dec 03 at 19:57   View User's Profile U2U Member Reply With Quote

no, it wont be the rear drums.

take the discs off and stick them on a flat surface, i had discs which warped after about 1000 miles, all you need to do is some hard braking and thats enough to do it, i had brakes from a sri at the time.
essexracer
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18th Dec 03 at 19:57   View User's Profile U2U Member Reply With Quote

erm, actually from from memory i think so...

wen u say lip, do u mean as in where the pads av worn away the face of the dics, but av left a slight lip at the top, because they dont make contact there.


james
Kris TD
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18th Dec 03 at 19:58   View User's Profile U2U Member Reply With Quote

yes that is correct
essexracer
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18th Dec 03 at 20:03   View User's Profile U2U Member Reply With Quote

so what does it mean if there is a lip? is this normal


quote:
Originally posted by Kris TD
take the discs off and stick them on a flat surface...all you need to do is some hard braking and thats enough to do it.



what will that do(putting dics on flat surface)? sorry if im bein thick but what do u mean?
Kris TD
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18th Dec 03 at 20:04   View User's Profile U2U Member Reply With Quote

it will show you if they are warped, cos if they are it will be able to see.

or just turn them round on the hub and measure from a certain point at stage around the discs to see if its out.
broster
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18th Dec 03 at 20:05   View Garage View User's Profile U2U Member Reply With Quote

it will show if the disc is warped
Kris TD
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18th Dec 03 at 20:05   View User's Profile U2U Member Reply With Quote

it only needs to be a tiny amount to do it.
essexracer
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18th Dec 03 at 23:09   View User's Profile U2U Member Reply With Quote

so if the dics are warped then all i can do is buy new discs?

are you sure it cannot be anything else causing the juddering during breaking?


y do discs warp? how many miles should they last? (under normal conditions)

its a bit annoying as my discs arnt even standard, they are Brembo Maxi discs and they have lots of life left in them!


il av to check 2mo.


james
Greasemonkey
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Registered: 17th Apr 02
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18th Dec 03 at 23:17   View User's Profile U2U Member Reply With Quote

I had this problem hey from southend my old stomping ground!!!!
I change my disks for new red dot 20 groove jobbies on my GSI still didnt sort the problem, turned out to be the rubber bushes on the control arms, replaced them both and it aint done it since car feels real tight up front
essexracer
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18th Dec 03 at 23:23   View User's Profile U2U Member Reply With Quote

rubber bushes on the control arms

wats that then? and was it easy to change? and lastely how much are the bushes?

cheers,
james
Greasemonkey
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Registered: 17th Apr 02
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18th Dec 03 at 23:29   View User's Profile U2U Member Reply With Quote

the control arms are attached at one end to the chassi and at the other to the steering ball joint, the bushes are rubber and control foward and backward motion on these componants, cos its attached to the whole hub assemble if these bushes are worn they cause juddering when braking, is the steering wheel juddering, there might be a very slight movement on the steering wheel during normal driving too, when these bushes have gone and you do brake the car will judder quite severely and wont brake in a straight line.
If ya car isnt doing the above then i would say it will be warped disks like the others said
Greasemonkey
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Registered: 17th Apr 02
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18th Dec 03 at 23:31   View User's Profile U2U Member Reply With Quote

its actually cheaper to buy the control arms with bushes already fitted in them than fitt the bushes, i think it cost me 80 for both sides fitted, you have to change both sides
essexracer
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18th Dec 03 at 23:36   View User's Profile U2U Member Reply With Quote

yea the steering wheel judders as well i think.

is it deffinatelty called "control arms" il av to look it up 2mo in my haynes manual

so is this a common fault?


james
JAMIES CORSA
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Registered: 11th Dec 03
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19th Dec 03 at 11:02   View User's Profile U2U Member Reply With Quote

COULD BE THE SLIDERS NEED GREASING THE CALIPER MITE NEED FREEING OFF MINE DID THAT ALL THE TIME WAS SORTED WITH GREASE
H
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Registered: 2nd Sep 03
Location: Hartlepool
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19th Dec 03 at 11:29   View User's Profile U2U Member Reply With Quote

sry to come off topic a bit here but what pads/disks would you recommend for a 2l conversion? and at what cost?
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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19th Dec 03 at 12:01   View User's Profile U2U Member Reply With Quote

GM pads and discs
Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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19th Dec 03 at 12:05   View User's Profile U2U Member Reply With Quote

GM disks and pagid fast road pads
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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19th Dec 03 at 12:31   View User's Profile U2U Member Reply With Quote

wont those pads chew the discs in no time gambit?

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