Great "Porschologist" At The RennShop, Santa Clara, CA
#17
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I will say as much as this: Including some parts and labor unrelated to the brake issue, it was not anywhere close to four digits. But I will not post a $ amount.
#18
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There are many past threads about this odyssee... We used the PowerBleeder, foot pumping action, as well as a reverse bleeder. In total, we bled more than 20 times.
The vacuum bleeder uses the shop's vacuum, and sucks the fluid out of the slightly opened bleeder nipples. Marvin explained that you tend to see a few small extra bubbles in the hose from air that enters through the bleeder nipple's threads, but overall this technique is more effective in evacuating air in the system.
As I said, he reported air coming from the brake master cylinder - which we had bled many times before. Why there was still air trapped in there, I don't know. Was this air the main culprit? I don't know, either.
What I do know is that the pedal travel was 2" too long, the pressure point weak, and brake performance lackluster. All this has been fixed at a cost under the initial estimate, by someone who cared to understand the problem and fix it right.
The vacuum bleeder uses the shop's vacuum, and sucks the fluid out of the slightly opened bleeder nipples. Marvin explained that you tend to see a few small extra bubbles in the hose from air that enters through the bleeder nipple's threads, but overall this technique is more effective in evacuating air in the system.
As I said, he reported air coming from the brake master cylinder - which we had bled many times before. Why there was still air trapped in there, I don't know. Was this air the main culprit? I don't know, either.
What I do know is that the pedal travel was 2" too long, the pressure point weak, and brake performance lackluster. All this has been fixed at a cost under the initial estimate, by someone who cared to understand the problem and fix it right.