Brake booster issues

[Rustyrodknocker]

Yup. I know about that. Definitely not the problem.same booster same master same everything that was originally on the car when all as good before the booster crapped out.
That part shown flopped around when we pulled the booster (stop so I can delete the goddamn ad that just covered my screen so I couldn't see the reply box at all) and when my son initially drove it upon reinstalling it on the way to my house he called me from the side of the road and told me it was dragging and he smelled hot brake. That car has never had that problem before. I ended up loosening the master til it rolled free, it was like it was partly applying the brakes without touching the pedal. He put the original spacer that was between the master and booster back in (looks laminated much like a thick carb base gasket) but the foam had disinterested, I ordered new foam from DMT but I figured that would compress to a thickness that would make it irrelevant but now I guess it "pushes" thru the brakes like only one end is working. I moved the car from one side of the driveway to the other and not the garage and the pedal was rock hard and I didn't think I was gonna stop. Last time I drove that car (last year before the booster crapped out) it stopped great. High firm pedal like you'd expect from a power brake car. Not rock hard and barely stop...

By loosen the the master, do you been loosening the mounting bolts to the booster? This relieved the line pressure?

 

[Rustyrodknocker]

don't think anyone here has taken the time to see if any of the truck or van boosters would fit in a C body. Maybe you should look into it, since you have sample boosters. The

I don't have a dual diaphragm out of a 70's pickup in my 69 300. When I swapped in 73 brakes the donor car booster diameter was too large. I was able to get a booster and master at autozone. The booster looks to be the same stamping as the factory drum dual diaphragm but the mounting bolts were off which I made and adapter for. I prefer this arrangement due to parts availability.

 

[polarus]

Would it hurt to put a Bendix one on at least "for now"?
That one my kid sold which came off of another 72 fury wagon looked different from this one. I'm thinking that one may have been a Bendix.
I'm talking to someone who has one he knows is off a C body but that's all he knows about it, pix look like the one we took off the parts car. I dunno if it was a date thing, or this factory used Midland while the other factory used Bendix or what/ and I don't care as long as I can bolt it on and have it work. He's wanting to take it on power tour, he's paid and from the Ohio stop we basically would have to go past the exit for the town that Murray Park is in... I actually got the windshield from him that's in this car now. I'm hoping we won't have to wait and get one from him... I felt he choked me pretty good on that windshield....

You can interchange one for the other but the distribution block on the frame rail is different.

 

[volaredon]

Ok it's back on and the kid says night and day difference. I haven't driven it since before the booster went out the first time to tell...

 

[volaredon]

You can interchange one for the other but the distribution block on the frame rail is different.

How? If I'm only changing the booster and using the original master? The booster doesn't have anything to do with the hydraulic side.