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So the installation is finished! I bled the master cylinder, put it on the car, and bled the brakes at the calipers just to get the lines nice and clean. About the pedal, the height seems to be fine, I think it just looked higher than I was installing it. But other than that, I've got a good...

Thanks, for your help. I looked at the plastic switch and, I snapped it back on the column so I could adjust it. It worked like a charm, and the reverse lights come on properly. Also, I will look into the pedal being a bit too high this weekend when we finish the installation of the vacuum brakes.

That's exactly what we are planning on doing. Although I also want to bleed the lines at the calipers too, because I just want to make sure the fluid is clean throughout.

Yes I did, I bought the kit from kirbans, so it came with everything.

Well I haven't put the master on the booster yet haha. I just put the booster on for now. I'm planning on bench bleeding the master cylinder and putting it on this weekend. As for that plastic piece, if it's not that big of a deal that it broke off then I wont worry about it.

Here's a picture of the plastic piece that I was talking about. (the best picture I could find of it) It's right by the 11' mark on the tape measure.

I just got my vacuum brake booster kit, and I just had a couple questions. Firstly, there is some sort of plastic assembly piece with some power cables going to it on top of the steering column, and it seems to be broken or disconnected from the column. I'm not sure what this piece is or what it...

How should I remove those vacuum lines from the block?

SO, I have finally purchased a vacuum brake system from kirbans, and I just wanted to come back here to ask if there was anything I had to do to prepare my car for the vacuum brakes. For example, I know the kirbans kit comes with a new vacuum block, so, how should I take off those vacuum hoses...

Wow thank you guys so much for the informative replies. I am really considering converting to vacuum now that I have looked into it a bit more and I will probably get the kit from kirbans, or something similar. Originally I was quite concerned about my car not making enough vacuum, but thanks to...

Awesome, I have one more question: do you know of any high quality vacuum boosters that I can look into? I was thinking about getting the booster and master cylinder from a regular buick regal, but if there are better ones then I would probably get one of those.

Thanks for your replies everyone. I think the best option for me would be replacing the powermaster with a vacuum system, that being said, I have a question about it. I have heard a lot of people say that a grand national or a turbo regal wont make enough vacuum to power the vacuum booster...

So, after a while of diagnosing my powermaster brake system, (ive gotten some good answers from this forum) I have finally started to ponder whether I should just take it off and put a better braking system in my car. Should I invest in a rebuilt powermaster? or should I go for a vacuum or...

I've just seen a lot of mixed information on the vacuum booster on a turbocharged car. Some people say it won't create enough vacuum, and some say you will only have vacuum when you're off the boost. Is any of this true?

Yeah, im really thinking about converting it to a vacuum or hydroboost system. The vacuum seems cheaper, but ive heard people say that the turbo buicks dont make enough vacuum to provide good brakes. Is this true? Can I put a vacuum booster on my car with no problems? Its completely stock...

I'm still trying to figure this out, but I had an idea. I was going to ask if anyone had the time to post a video or something of their Grand National's brake pump working properly so I can hear and see what its supposed to sound and look like. Maybe just putting the car in the run position for...

Well thanks for all the info guys. I'm going to try out some of these things this week and see if anything works itself out.

I could try that, the thing that throws me off is that when I press down the brakes real hard with the ignition on, the pump starts to work and drain the fluid out of the reservoir but thats when the hissing/leaking starts. at this point im just considering taking that piece of junk out and put...

Yeah, I should have mentioned we did replace the accumulator, and it did help for the most part but for the time being, the main problem is that the motor isnt stopping on startup. I'm thinking it might be a faulty pressure switch, but I want to get some more information before I spend the money...

Well, ive been having some problems with my 1987 buick grand national powermaster brake system, as many people do, and I have been looking everywhere for similar problems, but I finally caved and decided to ask someone here. So, whenever I turn the ignition on, the motor pump doesnt stop...