Recent content by Century1958

  1. Century1958

    58´ Power Brake Fail

    Yesterday the mechanic called me. It was because of the vacuum tank. It had a crack, but it only leaked sometimes.
  2. Century1958

    58´ Power Brake Fail

    Part 1 Part 2 Here i have two videos with discription in german/englisch As I understand it, when the brake is applied, the pressure should be higher when the engine is running and should not drop to -10. Tank is connected and should compensate for this. In the second video you can see how the...
  3. Century1958

    58´ Power Brake Fail

    Does not work, or not good. I have bubbles in the waterglass. Now i found the hose. Someone did a filter on it?! Vacuum Tank is good, since an hour stabil -13inHg. So the only thing is that power booster is still leaking. A little tip with the brake pedal and the vaccum is gone
  4. Century1958

    58´ Power Brake Fail

    Thanks Todd New test, now I have installed the pressure gauge with a T-piece in the line after the check valve and before the brake power booster/tank. When the car is started it has a negative pressure of -14 and builds it up quickly. When I step on the brake the pressure drops to -10 and rises...
  5. Century1958

    58´ Power Brake Fail

    Engine Vacuum and Check valve. Function [emoji1303] Gesendet von iPhone mit Tapatalk
  6. Century1958

    58´ Power Brake Fail

    I'm a little confused. I read a bit on the internet and found out that Buick from 57-58 used an oil pump with a flanged vacuum pump. I assume that this pump is responsible for the vacuum for the wiper and the brake. Now an "expert" told me that this vacuum pump is only for the wiper and has...
  7. Century1958

    58´ Power Brake Fail

    Found it myself in the Manual, the Engine must have 22inHG on 1600RPM 22inHG = 10PSI = 0,7bar
  8. Century1958

    58´ Power Brake Fail

    I've run some tests now. First, I checked the check-valve. Seems to be working, because there's no passage when i blow to the brake booster. Then I checked the tank with a brake bleeder vacuum pump. Although only with -7,3PSI (0,5bar) - thought the value on the scale was -15 "bar", but it was...
  9. Century1958

    58´ Power Brake Fail

    Hello Ben, Where can i get a vacuum diagramm? I have all manuals but there is no diagramm inside. AACA Forum sides i can not open from germany . Is this in the picture the check valve or is it only a T-Fitting?
  10. Century1958

    58´ Power Brake Fail

    Hello, I own a '58 Buick Century with power brakes (Delco). I had problems with missing power brakes all the time. I used silicone brake fluid. In the garage the whole brake system was overhauled and changed to normal brake fluid. New hoses, new brake cylinders. The master brake cylinder and...
  11. Century1958

    1958 Master cylinder cap

    Hello, can someone tell me the Diameter/Thread from this cap? My Car is far away at this Moment and I Need the Dimension for an Adapter Thanks André
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