Shouldn't the master cylinder be level to the ground when installed? Or is it supposed to be tilted up at a big angle like this?
The Master cylinders are parallel to the ground for the non-power brake cars, but the ones with power brakes are tilted as you have shown in the pic. Duane
I agree with Duane but don't know what year Buick you have but I believe you have a 70 set-up, proportion valve under master cylinder but with a 71/72 master cylinder.
It's all in a 67 skylark. I changed to factory disc up front, drum in rear. It was drum/drum from factory. So that is a replacement booster, master and proportioning valve and complete new brake lines front to rear for the new setup. thanks guys.
Due to the fact that the Master is at an angle, it's VERY important that you properly bench bleed the master before installing it. If you don't get all the air out of the master on bench, the angle it's mounted at on the car makes it much harder to successfully get it done.
Well, I bench bled it till no bubble showed up on full plunger press so I think its good. My brake bleeder vacuum thing broke so it's sitting for a couple days. Maybe.
Ok, that's good. I have switched over to gravity bleeding and then using a clean disposable water bottle with clean brake fluid in it, and attaching a clear hose from bleed screws which is submerged in the clean fluid(I have two). After it has gravity bled for about a half hour, I close two bleed screw and use the bottles to slowly pump a couple of times, and then tighten the bleed screws. I can do this by myself and got great results (Hard pedal) when putting my car back on the road (after a multi year rest). I did flush out all old fluid first!
The angle is due to the fact that on power brake cars the pushrod is moved down to the lower hole on the brake pedal arm. The angle bracket keeps the master cylinder on the same plane as the relocated brake pedal pushrod.
