those are the correct type of wrench, however, I like the ones I bought at NAPA which are thicker and not rounded on the edges, so they get a solid hold of the entire nut.
Tightness, I don't know a torque value, as you couldn't get a torque wrench on there anyways, but about a half a turn past full contact. Basically, when your hand at the base of the wrench can't turn it farther.
You may have mangled the brass junction box and might have to order new lines.
Once you do get it all butoned up and a firm pedal, Have someone check the lines with the brakes applied and engine running before you put the wheels back on. Under pressure will show any leaks much easier.
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NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z
Porsche: 93 968 / 23 Macan GTS / 93 968
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