LCR braking system

[Willie]

After fitting my EBC Ultimax discs and DS2500 and Pagid fast road pads I got my system fluid changed to a better spec.
When bleeding this the garage owner was telling me that most brake systems work in two sections/systems. One for say the passengers side front and drivers side rear and the other for the other two.
He said this was so if one system failed then the car would brake quite evenly
Is this the case with the LCR??
I can't remember why but he reconned that one of my systems seemed stronger that the other
Is this possible, if so what could cause it and what could help it.
Also how easy is it to redress the brembo calipers with new seals?
Is there anyone who has done this?
Pit falls? Averaged time to do?

Cheers all

 

[Willie]

Anyone???

 

[Phillc]

You can get recon kits for the brembo, i read a article on it but cant remember where, from what i remember its not hard, but the calipers need to be removed from the car, i think it was a case of removing the seal clean the seat and replace them hope this of some help.......... oh and happy burns night.

 

[Willie]

Cheers dude
Will try searching/googling
I'm offshore so canna enjoy the celebrations like I would/should
Will make up for it when I get home though

 

[ibizacupra]

If the pistons move freely and there is no leak then I seriously doubt they're the problem.
A brake tester for MOT will instant show inbalance, and if too great it will fail.

check it out first.

If bled, then there can often be issues with trapped air on these cars and mk4 golfs - can take a few goes before all the system is free from bubbles.

Pressure bleed only

 

[Willie]

Pressure bleed include using pedal or seperate pump?

 

[edmong]

Braking systems are made up of different sections like front to rear side, front to rear diagonally etc. Im not to sure on what the LCR is but at a guess it will be a dual system and split diagonally.

Like above, get it on a brake tester and check the imbalance on the front. 30% and above on the front axle is an MOT failure. Once you've done that you should be able to find out if theres a prob with the calipers or master cylinder.

 

[Muttley]

Junior Senior wrote
When bleeding this the garage owner was telling me that most brake systems work in two sections/systems. One for say the passengers side front and drivers side rear and the other for the other two.
He said this was so if one system failed then the car would brake quite evenly
Is this the case with the LCR??

What he's describing is dual circuit brakes. The brake master cylinder has two separate pistons on the same rod, each piston piped to one front wheel and the opposite rear wheel. If one half fails then you still have relatively balanced braking (although the single front will cause the car to pull to that side) which is a damned sight better than nothing at all. A purely hydraulic safety system, removing a single point of failure.

I don't have an LCR, but as far as I can tell from the tech docs, it does have dual circuit brakes.

 

[Willie]

Cheers guys

 

[ibizacupra]

Pressure bleed include using pedal or seperate pump?

no pedal.. pressure bleed..
DIY version is Gunsons pressure bleed which works of a car tyre pressure.

dont pedal up/down.... risk of damaging master cylinder seals.

 

[Willie]

OOOOOPPPPPSSSSSS!!
Job done the way you describe not to
Would it be very obvious if I'd done the MS seal roll thing?
I take it it wouldn't hold pressure atol?
It does so should be okay
How could I sort out the inbalance if its deemed there is one?

 

[ibizacupra]

OOOOOPPPPPSSSSSS!!
Job done the way you describe not to
Would it be very obvious if I'd done the MS seal roll thing?
I take it it wouldn't hold pressure atol?
It does so should be okay
How could I sort out the inbalance if its deemed there is one?

if you can pump the pedal up hard (engine off) and it stays firm and does'nt slowly sunk to the floor.. you have been VERY LUCKY not to roll the seals.

rebleed with pressure bleed if the mot brake tester shows the inbalance.

 

[Willie]

Thanks Bill

 

[cuprablue]

if you can pump the pedal up hard (engine off) and it stays firm and does'nt slowly sunk to the floor..

Any idea why car brakes do this? I mean feel spongey at first and then harden up as you pump them when the engine is off? None of the motorcycles I've had have ever done this. The lever, (or pedal on the rear), has always been firm no matter what. I'm assuming it's to do with the servo assist or somthing on cars right? given that motorcycles don't generally have such things.


cuprablue.

 

[jamie paton]

so bill you would recomend the ebc rather than the standard disc and would you also say braided hoses are worthwhile. the ebc's look the bo***cks by the way, my alloys are sold and i'll be getting the money for them during the week so i'll be getting in touch with you shortly. thanks for the help in advance. and going by the stories here i'll be getting them fitted by a pro.

 

[ibizacupra]

Any idea why car brakes do this? I mean feel spongey at first and then harden up as you pump them when the engine is off? None of the motorcycles I've had have ever done this. The lever, (or pedal on the rear), has always been firm no matter what. I'm assuming it's to do with the servo assist or somthing on cars right? given that motorcycles don't generally have such things.


cuprablue.

yes servo and abs pump

 

[ibizacupra]

Any idea why car brakes do this? I mean feel spongey at first and then harden up as you pump them when the engine is off? None of the motorcycles I've had have ever done this. The lever, (or pedal on the rear), has always been firm no matter what. I'm assuming it's to do with the servo assist or somthing on cars right? given that motorcycles don't generally have such things.


cuprablue.

so bill you would recomend the ebc rather than the standard disc and would you also say braided hoses are worthwhile. the ebc's look the bo***cks by the way, my alloys are sold and i'll be getting the money for them during the week so i'll be getting in touch with you shortly. thanks for the help in advance. and going by the stories here i'll be getting them fitted by a pro.

Ebc offer an affordable alternative to Brembo and seem to work fine