Wait - you ate a hole in your new garage floor??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.
Rear break Pressure controller
- Thread starter Candia4441
- Start date
You betcha! I'll wear it like a badge of honor. My garage is officially a working shop rather than an auto lounge. No sofa, and an acid hole in the floor...
It turns out the commercial coating that I called in a favor for really isn't holding up that well. It scratches pretty easily, and is showing wear..., oh and acid eats through it - ha ha.
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Yikes…I was planning to buy the Caswell set up, will have to put the acid outside…the challenge here is the winter weather makes use of the chemicals outside impossible.
I would bet that Master 6 would be willing to rebuild these.
Regarding adjustment of the operating pressure for this valve I am struggling to understand how it works.
There is a screw adjuster which effectively adjusts the length / springs compression, I am sure this is how it is adjusted at the factory for different operating pressures. However, during physics classes I was taught that a spring needs the same force to compress it from say 10mm to 9mm as it does from say 7mm to 6mm, it is called Hookes law.
Hooke's law - Wikipedia
I dismantled my valve, then using the Volvo kit mentioned here I rebuilt it. I could not see how the adjuster works, if Hokes Law is appropriate for this valve. FYI I put it back together without adjusting that screw and it all seems to work ok.
Can anyone explain how it works?
Here's my thought: up until a threshold pressure is met, the spring does not move and all the hydraulic pressure is applied to the calipers. Once the threshold pressure is met, some of the pressure that would otherwise be applied to the caliper moves the spring. Thus, beyond the threshold level, the increased pressure moves both the spring and the calipers. This prevents all the pressure from acting on the calipers.Regarding adjustment of the operating pressure for this valve I am struggling to understand how it works.
There is a screw adjuster which effectively adjusts the length / springs compression, I am sure this is how it is adjusted at the factory for different operating pressures. However, during physics classes I was taught that a spring needs the same force to compress it from say 10mm to 9mm as it does from say 7mm to 6mm, it is called Hookes law.
Hooke's law - Wikipedia
en.wikipedia.org
I dismantled my valve, then using the Volvo kit mentioned here I rebuilt it. I could not see how the adjuster works, if Hokes Law is appropriate for this valve. FYI I put it back together without adjusting that screw and it all seems to work ok.
Can anyone explain how it works?
I think the adjuster changes the threshold pressure. Not sure about Hookes law, but if you compress a set length of spring between two fingers, and hold it in a compressed state, the force needed increases as you compress the spring further. Perhaps the increase is linear, but the increasing force I described would increase the pressure threshold needed before the valve begins to work.
F=kx, k is the spring constant, x is the displacement.