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ANSWERS TO YOUR QUESTIONS
VSTECH
According to Mercedes manuals, I am getting enough vacuum, and the vacuum comes up more quickly than the specs. The leaking to the reservoir and doors is quite small that it should not affect braking. If I pump the vacuum to 20-21 "Hg, it would take a half hour to an hour or more to drop down to 0," so vacuum to the booster does not seem like it should be a problem. The booster, also, seems to be holding vacuum. I let the car run for 3 minutes, and let it sit there for 5-6 minutes. I disconnected the main line to the booster, and there was a big woosh of air. My callipers are at 80%-90% and working well. Even the parking brake performs like it is a new car.....which is rare. How can a flex line cause a hard pedal? None of my rubber hoses, at the callipers, are cracked, and they are not leaking.
BrassMonkey
The pedal seems more hard at slow speeds. Once over 5 MPH, the pedal seems fairly normal. Even though, the pedal might be slightly hard at 5 MPH+, I think that could be from the fact that the brake fluid is old, and may have taken on water while in storage (I read somewhere, that over time, the fluid can take on water). I do not have to pump the brakes when stoppiing, but the pedal does sink the half inch to an inch once I stop and still have pressure applied. Put in other words, the pedal does not sink at all until I come to an almost complete stop, or a complete stop. And even then, it only sinks an inch or less. This last one second drop in the pedal is mainly what I am trying to figure out.
1. MC full with no apparent sign of leaking. Not losing fluid either.
2. Little wear.
3. Air is possible
I will try bleeding the system as soon as I get a new vacuum tester/brake bleeder. Mine walked of from my garage when I was in the house. Some kid must have liked the shiny red and brass, gun-looking toy.
As far as a picture of the CACTUS, here is a photo found online. Different car, but vacuum connector and yelllow check valve is just like mine. 1. the gray line from main vacuum line feeding booster, 2. line feeding ignition, 3. to check valve, to reservoir and to doors, 4. haven't figured where this goes, yet. One rubber line in and three out..... zoom in (open file and hit control ++++++++) I also highlighted its shape in the second photo to clarify shape. WHERE TO BUY ONE?
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