Brake regulator valve internals?
Discussion
Does anyone know if the brake regulator valve (Haynes manual calls it the “hydraulic brake pressure regulator valve”) is necessary, as mine has no piston or spring inside. I wondered if they had been removed for a reason? What does it do? And is it an advantage to remove the insides?
Thank you for your time!
Thank you for your time!
Yes it's necessary. It's there to adjust the brake bias to compensate for weight transfer under braking. Without one of these fitted and working you will have too much braking at the front under light braking, or too much at the rear under heavy braking. I suspect the insides were removed because it seized and the owner thought it would be a way to save money. Which is dumb.
77cooper said:
Does anyone know if the brake regulator valve (Haynes manual calls it the “hydraulic brake pressure regulator valve”) is necessary, as mine has no piston or spring inside. I wondered if they had been removed for a reason? What does it do? And is it an advantage to remove the insides?
Thank you for your time!
you most likely have the later type valve on the bulkhead near the master cylinder rather than the older type mounted on the rear frame Thank you for your time!
I think the later type was fitted from around 77-78'ish
My 93 mini is fine braking in a straight line with normal pedal pressure.
If I need heavier braking or from high speed (60 upwards) then it becomes terrifying with the rears doing too much braking from what I can feel, they tend to lock up early. A real ditch finder, my 911 is a pussycat compared to this b4stard!!
I've wondered whether this valve is the culprit or do they all do this?
If I need heavier braking or from high speed (60 upwards) then it becomes terrifying with the rears doing too much braking from what I can feel, they tend to lock up early. A real ditch finder, my 911 is a pussycat compared to this b4stard!!
I've wondered whether this valve is the culprit or do they all do this?
Edited by PGM on Thursday 13th November 09:59
"SAFETY ALERT!"
Note that the front mounted brake compensator valve has METRIC threads whereas the other ends of those brake pipes have Imperial fittings.
I know this has all been said on here before but, to my mind, it can't be said too often. Crazy Rover engineering.
It is quite possible to have older spec pipes with Imperial fittings on both ends and APPEAR to have correctly fitted the brake pipes. I just has a Cooper 'S' in which had been re-shelled into a later shell with the front-mounted valve and that is exactly what had happened! Yes, really!
Note that the front mounted brake compensator valve has METRIC threads whereas the other ends of those brake pipes have Imperial fittings.
I know this has all been said on here before but, to my mind, it can't be said too often. Crazy Rover engineering.
It is quite possible to have older spec pipes with Imperial fittings on both ends and APPEAR to have correctly fitted the brake pipes. I just has a Cooper 'S' in which had been re-shelled into a later shell with the front-mounted valve and that is exactly what had happened! Yes, really!
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