Brake pedal travel
- Thread starter Brad1011
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a residual pressure valve will not make up for ill matched calipers.
what calipers have you fitted?
what calipers have you fitted?
18z thought it was worth an ask haven’t fitted them yet just asking in advance so when I come to do everything I can do it in one go. I did see your vacuum pump though sounds like a good idea
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It seems hit n miss with the feedback on them when I was looking there was mixed feed back on them some complained over the pedal feel and some said it wasn’t that bad, have seen mentioned on facebook (think he’s a member hear aswell) about using parts from another vag car
LCR Brembos should be fine. I had them on my TT for a bit and the piston area is actually less than stock so the brake pedal was solid. 18Z calipers shouldn't be too bad. The ones that are pretty bad in terms of caliper piston size are 17Z calipers. They are way off.
Yeah I had a slight incline that they just need bleeding properly the guy that had the car before me messed about with the calipers so I’ve always had a crap pedal just never been bled properly
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There are two small nipples on the master cylinder that quite often don't get bled. If you let too much fluid out of the system or let the reservoir empty air will find it's way to the master cylinder and these may need bleeding.I use a pressure bleeder about 10-15 PSI max and always managed to bleed the system. Too much pressure with a pressure bleeder can cause the fluid reservoir to split but it also stops fluid moving through certain parts of the ABS because of a valve.
This is copied from Elsa Win and is possibly where some people go wrong trying to bleed the brake system.
"When using a brake system filling and bleeding appliance (such as VAS 5234 or V.A.G 1869 A) to replenish the brake fluid, make sure that filling pressure does not exceed 1 bar.
If the filling pressure exceeds 1 bar, a hydraulically controlled change-over valve (which is required for the EDL function) prevents unrestricted flushing of the EDL-related parts of the hydraulic unit. If this is the case, it may not be possible to bleed the system properly.
For this reason the brake fluid pressure must be reduced to 1 bar on the brake filling and bleeding appliance."
This is copied from Elsa Win and is possibly where some people go wrong trying to bleed the brake system.
"When using a brake system filling and bleeding appliance (such as VAS 5234 or V.A.G 1869 A) to replenish the brake fluid, make sure that filling pressure does not exceed 1 bar.
If the filling pressure exceeds 1 bar, a hydraulically controlled change-over valve (which is required for the EDL function) prevents unrestricted flushing of the EDL-related parts of the hydraulic unit. If this is the case, it may not be possible to bleed the system properly.
For this reason the brake fluid pressure must be reduced to 1 bar on the brake filling and bleeding appliance."
