Thread: how does the brake booster work?

How does our brake booster work?

I Googled this, HowStuffWorks "How Power Brakes Work" but that is not making sense to me.

If a website with text, pictures, diagrams and even coloured diagrams doesn't help you, how is someone else's explanation going to help ? lol.

What part exactly don't you understand?

the sucking of the vacuum on the pedal feel sort of so to say

it puts the cushion on the pedal, a bad brake booster would do the oppisite, it would make your pedal rock hard,

It "boosts" the braking force, just like power steering makes it easier to turn the wheels. The brake booster makes it easier for you to apply hydraulic force to the calipers, without it you would need to pump the brakes to build up pressure or have a longer pedal throw to get the same amount of clamping force on the pads/rotor.

True that.

But I don't understand where the vacuum is coming from, actually I see a vacuum line going to the intake and what does that?

Also the clamps, and also the thingie in the booster that hooks up the rubber hose doesn't seem very well. sort of however? :?

Your intake is sucking in air, creating the vacuum on brake booster.

See Below, the intake at idle and low throttle will make vacuum, there is a one way valve that keeps pressure in the booster if/when the intake goes into 0 vacuum/boost.



Not sure what your asking, there is not a whole lot of pressure there, the clamps just assure that the hoses do not come off. That "thingie" is the one way valve.



Word.

I pulled the hose from the intake to the brake booster and it said Swoosh!

I replaced the high pressure hose with the metal part slaloming between the serial number plate and such for normal multi purpose hose and filled all holes with those plastic Nissan caps saying M6, M8, etc from a scrap car.

Or should I try to get something better for a hose? I figured the hose I have now suitable for fuel, means it can take 3 bars atleast... The GA16DE seems to not have such stiff hose.