GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: LazyLunatic on 08 August 2009, 19:34
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What i have done is put a gti rear beam on which didnt have a rear brake compensator. however my old beam did.
so basically i got 4 brake lines all meeting at the same place (where the compensator was), two from the front of the car and 1 from each rear disc. so i was thinking just join the 4 lines with 2 brake lines, in place of a compensator.
now im not sure if this would be passable. i think it will be fine, seeing as the gti rear beam doesnt use it, but thought id see if anyone can shed some light on the situation.
also battery in the boot? what do i need to do for it to pass an mot? just secure it on a tray or in a box?
cheers :)
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If you use proper unions to connect the pipes and make sure everything is secure and not leaking i would pass it.
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Reference the battery in the boot, you need to get a sealed unit with a vent tube which vents outside the car, much safer.
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Are you saying you are going to get rid of the compensator altogether?
If so then it may pass an MOT but it certainly isn't safe.
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Are you saying you are going to get rid of the compensator altogether?
If so then it may pass an MOT but it certainly isn't safe.
Am I right in thinking it helps with brake balance and without it you stand a chance of locking the rear brakes.
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Are you saying you are going to get rid of the compensator altogether?
If so then it may pass an MOT but it certainly isn't safe.
Am I right in thinking it helps with brake balance and without it you stand a chance of locking the rear brakes.
Yes. I believe later models that don't have the valve fitted have a modified abs system.
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Are you saying you are going to get rid of the compensator altogether?
If so then it may pass an MOT but it certainly isn't safe.
Am I right in thinking it helps with brake balance and without it you stand a chance of locking the rear brakes.
Yes. I believe later models that don't have the valve fitted have a modified abs system.
Cheers, I was thinking the same.
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When i was in new zealand i had a company YARIS!!
I know i know......
Long and short was i ragged the sh!t out of it so hard, i broke the rear compencator, and when i took it for an MOT they failed it, and said it was a miracle that when i braked hard it didnt spin, as apparntly the braking on the rear left and right was like 80%-20%.
HAHAHAHAHA......... Bad times.
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I thought the one on the MKII just adjusted the amount of braking effort to the rear when it's fully loaded and nothing more clever than that. Mine is disconnected from the Beam so it doesn't do anything anymore.
Nick
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I thought the one on the MKII just adjusted the amount of braking effort to the rear when it's fully loaded and nothing more clever than that. Mine is disconnected from the Beam so it doesn't do anything anymore.
Nick
I believe so but with ABS it will do more with the left / right balance.
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Will LL's have ABS as it wasn't a GTI to start with, think it will have just had the noddy compensator like the MKII.
Nick
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I thought the one on the MKII just adjusted the amount of braking effort to the rear when it's fully loaded and nothing more clever than that. Mine is disconnected from the Beam so it doesn't do anything anymore.
Nick
All of these valves are load sensing. The more weight on the rear axle the more pressure is applies to rear brakes.
Therefore if there is no weight on the rear axle there will be no restriction of hydraulic pressure to the rear brakes.
This is potentially dangerous and should fail an mot.
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Mine was MOT'd last week and it failed, but not on that item. Mines a track car mostly and rarely used on the road but I've always felt the brakes to be perfectly balanced even with the track wheels loaded up in the back which drops the ride height about 15-20mm at the rear with all that weight.
Nick
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Thats interesting, it should of failed, the tester must of missed it.
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It's been through 7 MOT's like that at about 4 different garages and never been picked up.
Nick
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Maybe by disconnecting the valve the pressure to the rear brakes is constantly limited, regardless of rear load. Maybe if this is the case then the car will pass an mot no problems.
This is not the same as removing the valve from the system altogether...
Any comments?
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Yeah I'd agree with that as mine is just disconnected but the fluid still flows through it.
nick
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I had to replace my rear compensator a few years ago as it was completley seized and it failed the mot
and was noted on the fail sheet with dangerous next to it in big letters,they arnt alot of money so I would say if it's there then it's there for a reason and it's better to be safe then sorry.altho I must admit I am quite anal about my mk2 if sumink is broken or looks on it's way out it gets a new one pronto.
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Maybe by disconnecting the valve the pressure to the rear brakes is constantly limited, regardless of rear load. Maybe if this is the case then the car will pass an mot no problems.
This is not the same as removing the valve from the system altogether...
Any comments?
That's my understanding of it. If it's not on the beam then regardless of weight in the back the spring won't be doing anything to change the brake compensation and it'll just stick to it's basic setting. Can't comment on removing it completely because I don't know anyone stupid enough to do it :lipsrsealed:
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Maybe by disconnecting the valve the pressure to the rear brakes is constantly limited, regardless of rear load. Maybe if this is the case then the car will pass an mot no problems.
This is not the same as removing the valve from the system altogether...
Any comments?
That's my understanding of it. If it's not on the beam then regardless of weight in the back the spring won't be doing anything to change the brake compensation and it'll just stick to it's basic setting. Can't comment on removing it completely because I don't know anyone stupid enough to do it :lipsrsealed:
going by this thread, you do now :grin:
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Correctly adjusted, the bias value will be fully closed when the car is unladen, so disconnecting will have this affect also. Perfectly acceptable as the front/rear bias is within the correct limits. It is safe to disconnect it from the beam, as it will run the brakes as if the car is unladen, and seeing as your car has no interior and no weight in the back, nick its fine. You are simply driving the car around as if you dont have any rear passengers, with the valve fully closed, like most of use do.
As for removing it im not so sure, it probably isnt a good idea due to flow rates being limted within the valve(in normal position)
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i used the pressure regulators from a mk1 cabrio and they work perfect. you will need 2
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thanks peeps for the info.
i know the 1.4 had a different version to the rest of the mk3's if it makes a difference.
also, if i just cut the compensator off my old beam, can i just connect the brake pipes with it and not attach it too the beam?
cheers :)
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also, if i just cut the compensator off my old beam, can i just connect the brake pipes with it and not attach it too the beam?
probably your best option fella, just make any fat mates walk from now on :grin:
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also, if i just cut the compensator off my old beam, can i just connect the brake pipes with it and not attach it too the beam?
probably your best option fella, just make any fat mates walk from now on :grin:
plan :D