[NumStulpata]

to op:

Go get OEM brakepads and discs.


All that I know better stuff on forums isn't making yiu brake any faster, better or whatever. Just get originals. Done.

OOh yeah I forgot to mention that brakes do also interact with the body, like suspension, springs, chassis and the tyres...

OEM OEM OEM = VROOM VROOOOM VROOOOM !!!

[anconueys]

Doesn't work that way on any of the cars I've done brake jobs on. Pads worn = lower pedal on all of them. Same for clutch pedals.

Always noticed a difference in pedal engagement height on any of the cars I've worked on. 93 Escort, 99 Sephia, 06 G6, 2001 contour, .... every car I've ever done brakes on has had a higher brake pedal engagement when new pads were installed and the pistons pushed back in to allow for the pads.

I couldn't guess to say why it changed for you. I just know that disk brakes are inherently "Self Adjusting" which should prevent changes in engagement distance.

Drum brakes are another matter. I know most have self adjusters built in, but other still have to be manually adjusted.

[Assungusa]

Doesn't work that way on any of the cars I've done brake jobs on. Pads worn = lower pedal on all of them. Same for clutch pedals.

Always noticed a difference in pedal engagement height on any of the cars I've worked on. 93 Escort, 99 Sephia, 06 G6, 2001 contour, .... every car I've ever done brakes on has had a higher brake pedal engagement when new pads were installed and the pistons pushed back in to allow for the pads.

Yeah, same here. The pedal gets "spongy."


The pedal might get spongy due to the increase fluid that is in the caliper. More fluid inside the caliper means that more fluid has to be compressed to get enough psi on the pistons to push inwards on the pads?

Anyone driven a vehicle that you have to pump the brakes and then for a short period of time they become uber senstive? Sucks.

[blogwado]

Yeah, same here. The pedal gets "spongy."


The pedal might get spongy due to the increase fluid that is in the caliper. More fluid inside the caliper means that more fluid has to be compressed to get enough psi on the pistons to push inwards on the pads?

Anyone driven a vehicle that you have to pump the brakes and then for a short period of time they become uber senstive? Sucks.

Brake fluid is a form of Hydraulic fluid and should not be compressible. If your brakes feel spongy, that's a good indication that air might be in the fluid and might be a good idea to bleed out.

Although it is recommended to flush your brake fluid every 2 years regardless of miles.

[JohnMitchel]

Not like air spongy but worn pads spongy. Still have to push down a little harder to get it going.

Fluid may not be compressible, but its the psi. You push the pedal down to create pressure that is forced onto the calipers pistons to push inwards. With more fluid in the caliper, more pedal travel would be needed to create the required psi to push the piston. ?

[Prealiitellg]

Not like air spongy but worn pads spongy. Still have to push down a little harder to get it going.

Fluid may not be compressible, but its the psi. You push the pedal down to create pressure that is forced onto the calipers pistons to push inwards. With more fluid in the caliper, more pedal travel would be needed to create the required psi to push the piston. ?

Old fluid has moisture in it, and air bubbles. Which is compressible. It forms as the fluid ages, or if it is ever overheated and boils. Hydraulic fluid shouldn't be compressible at all when in good shape.

Though pads that are worn and possibly glazed will not effectively grip the rotor as they have less friction available so more pedal effort is required for the same braking performance.

Most people hardly ever flush their brake fluid. Me? I'm a little anal and do it once a year. A vacuum pump makes me into a one man brake bleeding army.

[foI3fKWv]

Not like air spongy but worn pads spongy. Still have to push down a little harder to get it going.

Fluid may not be compressible, but its the psi. You push the pedal down to create pressure that is forced onto the calipers pistons to push inwards. With more fluid in the caliper, more pedal travel would be needed to create the required psi to push the piston. ?

The volume of fluid makes no difference. The pressure acting on the piston itself should stay the same. Basic Hydraulics.

Old fluid has moisture in it, and air bubbles. Which is compressible. It forms as the fluid ages, or if it is ever overheated and boils. Hydraulic fluid shouldn't be compressible at all when in good shape.

Though pads that are worn and possibly glazed will not effectively grip the rotor as they have less friction available so more pedal effort is required for the same braking performance.

Most people hardly ever flush their brake fluid. Me? I'm a little anal and do it once a year. A vacuum pump makes me into a one man brake bleeding army.

Yeah, there is a consensus that brake maintenance is the number 1 most neglected regular maintenance needing to be done on cars. Brake fluid naturally absorbs water, so it must be changed out periodically to prevent corrosion inside the brakes. And even more don't know that brakes should actually be taken apart periodically to lube parts like the slide pins and such.

Personally, I prefer a power bleeder over vacuum pumps, but that's just preference.