Brakes what's wrong??

Rooney · 28th April 2012, 11:52

I have fitted tg front discs, yellow stuff pads all round and have stadard rear dicks, fluid and lines. I thought this would solve the problem of brake fade but it seems to be worse than ever. One hard use from 100 to 20 (on a track obv) and they are shot. Now have I wrecked my fluid cause it's probs boiled or is there another problem?? I have uprated fluid but was going to use that when I purchase some do-luck lines after next pay day.

Any ideas about this??

Mad4amanda · 28th April 2012, 11:56

sounds likethe fluid is boiling to me as it gets older it absorbs water so the boiling point lowers , try a fluid change and if you plan to fit lines its a good time to do both

TH3DOCTOR · 28th April 2012, 11:57

Rear dicks???

Syx · 28th April 2012, 12:16

How long ago did you fit the discs and pads? Have the had chance to bed in before you started using them heavily?
Did you replace or bleed your fluid, or just leave it as-is when changing your pads and discs? When was it last changed?

Rooney · 28th April 2012, 13:03

Tbh I'm not sure if the fluid got changed when they were fitted but it was a good 2k ago, so they are plenty bedded in. Think I'll get the old fluid out and the new in. Is it a job I could do myself???

Ha ha sorry meant rear discs.

delta0 · 28th April 2012, 14:37

Quote:

Originally Posted by Rooney

Tbh I'm not sure if the fluid got changed when they were fitted but it was a good 2k ago, so they are plenty bedded in. Think I'll get the old fluid out and the new in. Is it a job I could do myself???

Ha ha sorry meant rear discs.

You can. It is easier with two people and i would recommend having someone that has done it before. You need to ensure there is no air trapped in the system. It is easy to get wrong unfortunately.

Syx · 28th April 2012, 14:41

Quote:

Originally Posted by delta0

You can. It is easier with two people and i would recommend having someone that has done it before. You need to ensure there is no air trapped in the system. It is easy to get wrong unfortunately.

+1.
Pressure bleeders need you to obtain a spare cap and drill it as they don't come with standard fittings for Jap cars so even more annoying!

Relic · 28th April 2012, 20:39

Lines + fluid.
Have you done the green fade procedure yet ?

70-0 ...gentle braking for 1-2minutes
70-0 ...gentle braking for 1-2minutes
Repeat until strong smell of burning brakes.
Do this on straights with no one in front of you as at one point the brakes will suddenly fall off.
Force ABS when this happens.

But the issue you have is you won tknow if you have green fade or boiled fluid

..until the lines are done.

The derv brakes are too small. Even with lines and fluid you can still boil the fluid.
Just takes 30 minutes in stead of 2

28th April 2012, 11:52	#1 (permalink)
Rooney Supporter Car: 57 CTR GT Join Date: 5th July 2011 Location: Nottingham Posts: 172 Thanks given: 12 Thanked 9 Times in 8 Posts iTrader: (1)	what's wrong?? I have fitted tg front discs, yellow stuff pads all round and have stadard rear dicks, fluid and lines. I thought this would solve the problem of brake fade but it seems to be worse than ever. One hard use from 100 to 20 (on a track obv) and they are shot. Now have I wrecked my fluid cause it's probs boiled or is there another problem?? I have uprated fluid but was going to use that when I purchase some do-luck lines after next pay day. Any ideas about this??

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28th April 2012, 11:56	#2 (permalink)
Mad4amanda Join Date: 14th December 2006 Posts: 117 Thanks given: 2 Thanked 6 Times in 4 Posts iTrader: (2)	sounds likethe fluid is boiling to me as it gets older it absorbs water so the boiling point lowers , try a fluid change and if you plan to fit lines its a good time to do both

28th April 2012, 11:57	#3 (permalink)
TH3DOCTOR Supporter Car: 09 Championship White Type R Join Date: 2nd June 2009 Location: Kent, England Posts: 2,171 Thanks given: 720 Thanked 313 Times in 243 Posts iTrader: (4)	Rear dicks???

28th April 2012, 12:16	#4 (permalink)
Syx Clingfilmed Car: 2008 2.2 CTS GT Join Date: 22nd December 2009 Location: Luton, UK Posts: 9,056 Thanks given: 831 Thanked 1,632 Times in 1,430 Posts iTrader: (37)	How long ago did you fit the discs and pads? Have the had chance to bed in before you started using them heavily? Did you replace or bleed your fluid, or just leave it as-is when changing your pads and discs? When was it last changed?

28th April 2012, 13:03	#5 (permalink)
Rooney Supporter Thread starter Car: 57 CTR GT Join Date: 5th July 2011 Location: Nottingham Posts: 172 Thanks given: 12 Thanked 9 Times in 8 Posts iTrader: (1)	Tbh I'm not sure if the fluid got changed when they were fitted but it was a good 2k ago, so they are plenty bedded in. Think I'll get the old fluid out and the new in. Is it a job I could do myself??? Ha ha sorry meant rear discs.

28th April 2012, 20:39	#8 (permalink)
Relic Cockup Specialist Car: 2007 2.2 Type 'S' GT, Bronze Join Date: 31st August 2009 Location: uk Posts: 12,159 Thanks given: 737 Thanked 1,459 Times in 1,279 Posts iTrader: (0)	Lines + fluid. Have you done the green fade procedure yet ? 70-0 ...gentle braking for 1-2minutes 70-0 ...gentle braking for 1-2minutes Repeat until strong smell of burning brakes. Do this on straights with no one in front of you as at one point the brakes will suddenly fall off. Force ABS when this happens. But the issue you have is you won tknow if you have green fade or boiled fluid ..until the lines are done. The derv brakes are too small. Even with lines and fluid you can still boil the fluid. Just takes 30 minutes in stead of 2