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Author Brakes - shocking (V6) - why?
Jules
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Registered: 26th Nov 04
Location: Ipswich, Suffolk Status: Happy
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18th Feb 07 at 15:01   View User's Profile U2U Member Reply With Quote

I have the V6 brake setup (From LMF), had it on a while so it's all bedded in and they good, but the pedal feel is shocking - there is loads of pedal travel before anything happens, and even then it's still a bit spongy.
It's has passed the MoT with them so braking ability is fine but I really don't like the feel of the pedal one bit.
I have bled the front brales when I fitted them , I have tried adjusting the bar that links the pedal to the servo with very little improvement.
What else can I do?

I've heard that the solution might lie with my rear brakes (standard drums)? Maybe replace the rear shoes and adjust them?

This is on a 1994 GSi (lowered by 60mm if that makes a difference to the (auto?) rear load adjuster?)

Any help gratefully recieved blah blah...



Jules
willay
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Registered: 10th Nov 02
Location: Roydon, Essex
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18th Feb 07 at 15:12   View Garage View User's Profile U2U Member Reply With Quote

honestly, get 2ltr brakes.
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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18th Feb 07 at 15:14   View Garage View User's Profile U2U Member Reply With Quote

STFU with your inferior braking suggestions Willay

Jules, have you got braided lines?
Jules
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Registered: 26th Nov 04
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18th Feb 07 at 15:32   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Robin
STFU with your inferior braking suggestions Willay

Jules, have you got braided lines?


No, but I have had them on my previous Novas etc and not noticed any difference - TBH When I had the Corsa GSi brakes on my old Nova GSi (after I'd put the V6's on my Corsa) I was bloody impressed with them compared to my V6's - this can't be the way it should be!

it should be:

V6's, then valver brakes
Adam-D
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Registered: 11th May 02
Location: Cheshire
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18th Feb 07 at 15:33   View User's Profile U2U Member Reply With Quote

nipple the right way up?
Jules
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Registered: 26th Nov 04
Location: Ipswich, Suffolk Status: Happy
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18th Feb 07 at 15:34   View User's Profile U2U Member Reply With Quote

Yep both calipers are the right way up
Kurt
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Registered: 23rd Oct 05
Location: Hi
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18th Feb 07 at 16:12   View User's Profile U2U Member Reply With Quote

bleed the whole system
Robin
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Registered: 7th Jan 04
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18th Feb 07 at 16:14   View Garage View User's Profile U2U Member Reply With Quote

braided hoses will help. I never had trouble with mine, pedal was solid.
JayCarr
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Registered: 19th Dec 02
Location: Cambs Drives:M3 & X3
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18th Feb 07 at 17:05   View User's Profile U2U Member Reply With Quote

My Hi-spec's feel the same as you've described. You push the pedal down quite far before anything happens. It has braided hoses too. And they feel real spongy. Have bled the Front barkes, but not the back. Would doing the back help?
Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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18th Feb 07 at 17:19   View User's Profile U2U Member Reply With Quote

by the number of problems people are having with braking issues its about time we all did something to find a way of fitting a bigger master cylinder on a corsa. where theres a will theres a way!
Fro
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Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
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18th Feb 07 at 17:23   View User's Profile U2U Member Reply With Quote

I always thought you should bleed the whole system not just the brakes you changed.
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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18th Feb 07 at 17:26   View User's Profile U2U Member Reply With Quote

I was speaking to a lad on Migweb a while back. He reckons V6 brakes on a GSI are spongey due to the ABS
Jules
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Registered: 26th Nov 04
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18th Feb 07 at 17:35   View User's Profile U2U Member Reply With Quote

TBH they were fairly spongey on my old Nova GSi which is non-ABS
ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
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18th Feb 07 at 21:10   View User's Profile U2U Member Reply With Quote

the abs corsas always have a poorer pedal feel imho.
But yes dont worry about replacing the rear brakes but try adjusting them up slightly, or to see if its going to make a difference try driving with the handbrake up one click!
Warren G
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Registered: 14th May 06
Location: Kent
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18th Feb 07 at 21:15   View User's Profile U2U Member Reply With Quote

its due to big pistons in the caliper - and not powerful enouf brake servo

my 2.0L's arn't great either, but id adjust up the rear drums abit - will give abit better pedal (only if needs doing tho)

do the braided hoses make that much difference?

[Edited on 18-02-2007 by warren.g]
mac1976
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Registered: 29th Dec 06
Location: tullibody , clackmannanshire
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18th Feb 07 at 21:25   View User's Profile U2U Member Reply With Quote

am the same with ma v6 set up and have braided hoses but the rear locks up but the front dont . all blead up proper and the nipples are at the top
Warren G
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Registered: 14th May 06
Location: Kent
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18th Feb 07 at 21:32   View User's Profile U2U Member Reply With Quote

remove the rear compensator spring and cable tie the valve bracket back
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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18th Feb 07 at 21:48   View Garage View User's Profile U2U Member Reply With Quote

I've still never worked out why mine and brosters were solid, and everyone else complains?
Warren G
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Registered: 14th May 06
Location: Kent
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18th Feb 07 at 21:54   View User's Profile U2U Member Reply With Quote

what engines were they? don't no if they fitted different brake servo's????
bekie
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Registered: 11th Feb 07
Location: Bristol
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18th Feb 07 at 22:00   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jules

I've heard that the solution might lie with my rear brakes (standard drums)? Maybe replace the rear shoes and adjust them?



Jules



I've got exactly the same problem with my 1994 gsi, I've recently replaced the shoes as they were worn but it didn't when I got it but it didn't make any difference to the distance the pedal travels. I'm going to try replacing the drums as I'm still finding the breaks aren't as effective as what I'd like. Let me know if you get the distance thing sorted.
Robin
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Registered: 7th Jan 04
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18th Feb 07 at 22:06   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by warren.g
what engines were they? don't no if they fitted different brake servo's????


1.4 Sports, his was an R, with sunroof, mine was a T, with A/c.

Dave A checked, and all the servos and m/cylinders are the same part numbers
Warren G
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Registered: 14th May 06
Location: Kent
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18th Feb 07 at 22:21   View User's Profile U2U Member Reply With Quote

mines a GLS x14xe non abs and non A/C

bleed mine several times, i checked it was the front by clamping the hoses and the pedal went rock solid, released o/s and pedal went down slighty and undone n/s and pedal went down quite abit more

my n/s caliper is flexing slighty - replaced the rubber boots and put new pads in, but still has spougie ish pedal, but better since iv adjusted the rear shoes up

but starting the car up (brake servo assistance) the pedal stays the same hieght
Will_Sport
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Registered: 28th Jun 04
Location: Notts
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18th Feb 07 at 22:25   View User's Profile U2U Member Reply With Quote

well the GSi brakes would feel good as they're 256mm - same as the 2.0 brakes... although the GSi ones are 4mm thinner (probs not make much difference unless they get used for a long time and heat up too much)

haven't heard many good things about the V6 setups myself
Dafz
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Registered: 5th Feb 07
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18th Feb 07 at 22:28   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by mac1976
am the same with ma v6 set up and have braided hoses but the rear locks up but the front dont . all blead up proper and the nipples are at the top


quote:
warren.g

remove the rear compensator spring and cable tie the valve bracket back


totally agreed, done that with my 1400 16 after fitting mintex m1144 pads and it did stop the locking up, the only thing you will feel is that sometimes instead of just staying on the pedal you will have to come off a bit and then back on to stop lock up.
Warren G
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Registered: 14th May 06
Location: Kent
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18th Feb 07 at 22:29   View User's Profile U2U Member Reply With Quote

one other thing - once at southend, not really braking much, i stopped and the pedal went to the floor, really really spoungy, but the braking efet was the same but felt really spougy strange feeling

anone else had that?

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