Brakes Nubira II

gianfranco · Post by **gianfranco** » Fri Jan 06, 2006 8:39 pm

I've noticed that my brake pedal needs to be pushed farther to make te car stop, than it used to be.

I've adjusted the rear shoes, but the problem continues. Even the brake needs to be pushed harder the brakes stop the car normally.

I noticed that attached to the brake pedal is the pump rod, and it has thread with a nut.

At this point has anyone tryed to graduate this rod to reduce the pedal length?

Thanks

MMamdouh · Post by **MMamdouh** » Fri Jan 06, 2006 8:57 pm

before doing that make sure your pads are not worn out (front and rear) and you got no fluid leaking through the lines or the master cylender and your braking fluid is less than 30,000 kms old... if all that is OK then you can start thinking of adjusting that rod you are talking about.

MMamdouh

gianfranco · Post by **gianfranco** » Fri Jan 06, 2006 9:06 pm

I checked the rear shoes and are fine (almost new) and front pads have enough material yet. Altough even in the front pads were worn out the pedal travel length shouldn't be different. The pads do not affect the travel of the pedal.

The rear shoes DO affect.

About the braking fluid I've have not changed before, because it's no so common to do that type of work here.

But in any case I'll chake the pads.

Thanks

MMamdouh · Post by **MMamdouh** » Fri Jan 06, 2006 9:09 pm

i have always felt the pedal moving less travel when the front pads are replaced... how much esbestos is left on the front pads anyways??

brake fluid flush is a peice of cake job to do... i just did it a week ago.

MMamdouh

gianfranco · Post by **gianfranco** » Fri Jan 06, 2006 9:12 pm

fornt pads are like 50%. When I changed last time (2 years ago) I didn't feel any difference with the change.

I'll chek the pads and then I'll try to adjust the rod. If i get no difference I'll supect that my pump is faulty.

Regards

MMamdouh · Post by **MMamdouh** » Fri Jan 06, 2006 9:30 pm

pump?? do you have ABS??

if you don't then try to bleed the system... maybe you got a little air in it.

MMamdouh

gianfranco · Post by **gianfranco** » Fri Jan 06, 2006 9:38 pm

Is not ABS..

You're right, about the air.. I'll bleed it.. But how the air came inside the sistem?

MMamdouh · Post by **MMamdouh** » Fri Jan 06, 2006 9:42 pm

not really sure but it is said that if your brakes fluid gets hot enough it will start to boil and develop air bubbles... the older your brakes fluid the more likley that will happen as the brakes fluid absorbs water vapour from the air and as it does that its boiling point drops and making the boiling thing more feasable.

if your brakes fluid is older than 30,000 kms or 3 years then it is better to flush it... use DOT4 as it has higher boiling point than the DOT3 but never mix both grades... it is either refill with DOT3 or flush and use DOT4.

MMamdouh

gianfranco · Post by **gianfranco** » Wed Jan 11, 2006 1:35 pm

Yesterday I bleed the brakes... And now they're like brand new

. What's the best procedure to replace the brake fluid?

Thanks

genie47 · Post by **genie47** » Wed Jan 11, 2006 3:18 pm

If you can get a Gunson Eezibleed, that will be good. They are sellling on eBay or some online store. It uses your spare tire's air pressure (use 25psi and no more) to pressurize the brake lines to flush or replace brake fluid.

Personally I have used this. Good because this means brake bleeding can be a one-man op.

MMamdouh · Post by **MMamdouh** » Wed Jan 11, 2006 10:24 pm

for me i used a different way:

1- yank off the brakes fluid reservoir
2- empty all the old fluid
3- cleaned it with water
4- place it back
5- fill with new fluid
6- bleed every wheel till the fluid is crystal clear.

OK this is not the best way to do it but it is better than keeping the old fluid in the system.

MMamdouh

Audacity Racing · Post by **Audacity Racing** » Wed Jan 11, 2006 11:39 pm

i bought a vacuum pump for 10 bucks off of harbor freight along with a 5 gallon bucket with a lid. put two fittings in the bucket lid, hooked hoses up, and did the vacuum trick for less than 15 bucks.

vacuum-------bucket-------caliper