Rear break Pressure controller
- Thread starter Candia4441
- Start date
Hi , there this is not me on eBay , but maybe it could be a help for you ( maybe )
I am not certain that these are the same, but I believe they are. I purchased and used a rebuild kit from PMB Performance to rebuild mine. It looks like they require a core, but maybe they can help you source one?
www.pmbperformance.com
Porsche 914 Brake Pressure Regulator Restoration < VIN 47429 15751
Trust our Porsche 914 brake pressure regulator restoration to improve pressure control and braking accuracy. We bring your Porsche pressure regulator back to its original performance, ensuring safe, balanced braking and a reliable system. Perfect for 914 brake system maintenance.
www.pmbperformance.com
Lan-brakes rear brake valve renew
this started some time ago with the dissasembly of this spare that i bought the rear proportional brake valve as it was advised use a tool to retain the spring when removing the bolts i will renew it following the advice of a forum friend
e9coupe.com
there is a guy that rebuilds these, do you have yours?
If your looking for new, Might be worth a try?
Bought a rebuild kit from them, part shared with Porsche, Volvo, may be able to find USA supplier.
Bought a rebuild kit from them, part shared with Porsche, Volvo, may be able to find USA supplier.
thank you, I order the part from European ebay and I pay 20euro but it will take time to get to me I will try that first.
thank you, yes I do have mine I order the parts and I will try to rebuild it myself it is not that hard there is 3 O ring that need to be replace.
Wladek
Well-Known Member
Be careful with simmering, because you might be very surprised during assembly.
Porsche 914 pressure regulator is supposed to be the same. Rebuild kit is-
www.pmbperformance.com
Pressure Regulator Repair Kit
You've searched the world over and you've discovered that this is the only 914 "Pressure Regulator Repair Kit" on the planet. Well... you have finally landed. It's a pressure regulator, "NOT" a proportioning valve. It proportions "NADA". It is the first anti-lock brake device ever to be...
www.pmbperformance.com
I would think a mid engine 914 would need a different rear brake pressure limit value than a front engine BMW. There must be a way to adjust and test the limiter, or some component(s) (spring?) are different.Porsche 914 pressure regulator is supposed to be the same. Rebuild kit is-
Pressure Regulator Repair Kit
You've searched the world over and you've discovered that this is the only 914 "Pressure Regulator Repair Kit" on the planet. Well... you have finally landed. It's a pressure regulator, "NOT" a proportioning valve. It proportions "NADA". It is the first anti-lock brake device ever to be...
Not sure they would need to be different. The valve is not a proportioning valve, which likely would be set differently depending on vehicle front to rear balance. Instead, the idea is merely to prevent the rear brakes from locking up under very hard braking when you are locking up the fronts.
Yes...it's a pressure limiter...not a proportioning valve. But wouldn't those two cars lock the rear brakes at different pressures? In addition to weight and front/rear balance differences, there are front/rear brake differences.
They sure look the same.
Perhaps the adjustment is the threaded allen screw on the end. I rebuilt mine, and this screw applies more or less pressure on the spring inside.
Looks amazing! Did you re-plate the bracket & bolts?
Yes I did. I re-plate everything (that is small enough to fit in my 1.5 gallon system). It is an extraordinarily rewarding process.
Typical "jewelry" by Stephen. 
It is not 100% Caswell, but the latest formulations and solutions are largely Caswell, yes. I initially did a complete non-Caswell system that didn't perform well. I am sure I must have gotten some of the chemistry wrong (I thought you could believe everything on the internet). So I backtracked with most of the buckets using the Caswell formulations, trying also to leverage some other resources for details like cleaning processes, amperages, times, etc. Recently, I've had two of the recommended buckets crack and leak. One with a chemical I don't want to be breathing (think Erin Brockovich), and the other that ate through my concrete floor.
I am currently looking for better buckets! Then I'll have to re-build a few of the formulas and do some testing. The biggest issue(besides leaks) is that it takes up a lot of room. But the results are, as @Dick Steinkamp says, jewelry. I still have some of the first few pieces I did laying outside in the dirt. They've been there for a couple of years and no corrosion or anything. I don't plan on laying the car in the dirt (like the previous owner did), so I am pretty pleased with the corrosion resistance thus far.