i ordered up earls brake lines for my camaro from summit. before i replace the stockers im wondering if theres anything i should know before i do this. like when i take the old hoses off, wouldnt the MC resivour drain out, and wouldnt air get into the system. and just i wanna do it right and dont really know everything and just wanna check. thanks

 

Yes the fluid will drain and of course you'll get air in the system, the new hoses don't come with fluid in them. No matter what you do you're going to have to bleed the brakes.
What I would do (and did do) is siphon all the fluid out of the reservoir change the lines, refill the reservoir and throughly bleed the system. now you have new hoses AND all new fluid in the system.

 

while you're ordering stuff, do yourself a favor and get some speedbleeders ( http://www.speedbleeder.com/ )

it'll make bleeding and fluid changes a snap.

 

If you're able to work quickly enough, or have a helper, the reservoir shouldn't get low enough to worry about.
First thing, make sure all your bleed screws will open before starting.
Use a pair of vice-grips or a clamp of some kind to pinch off the rubber hose you're replacing. On the fronts, remove the banjo bolts and hose from the calipers, and install the new hose onto the caliper first. The clamp on the rubber hose will lessen the fluid loss while working on the caliper end of the hose. Then remove the old hose from the inboard side, and install the new hose. Repeat for the other two hoses.
When you bleed the system, start at the wheel furthest from the master cylinder, and work to the closest. Right rear, left rear, right front, then left front.
Good luck.

Pete

 

I half-agree with Pete!

Definately crimp the old hose off, attach the new one to the caliper, and then remove old/install new to the body line. Tip; fill your caliper up with some fluid before putting the new brake line on; it'll shorten your bleeding time. Might as well just deal with a small air bubble then a huge one!

But the part I disagree with is the need for bleeding the whole system. If you can work carefully enough so you don't get air into the rest of the system, you don't have to bleed all four wheels. Get yourself a Mityvac (or better yet, http://www.brakebleeder.com - better price on it from toolparadise.com), that way you can bleed the one wheel without pressing on the brake pedal.

Now if you -do- bleed by the brake pedal, well, yeah, you've gotta bleed the whole system.

And further, if you've never flushed the brake fluid on your system, this would be the best time to do it (while all four wheels are off).

When I last changed my brake lines (to stockers, 3rd set since I've owned the car in 1994- hopefully everyone changes their hoses every now and then!!!), the Phoenix Injector was awesome. I did like Pete said, crimped off the old hose. With the caliper on the ground, I hooked up the new hose. Then I forced fluid into the caliper thru the bleeder, while holding the new brake line straight up. When fluid poked out the car-end of the new hose, I removed the old hose from the car and connected the new one. Then I reversed the injector to force fluid down from the master cylinder. Took maybe 5 minutes each side to bleed. I believe the same could be done with a Mityvac... but don't own one, so I'm not sure.

Just a different view from somebody who hates brake fluid!

 

i think morleys way sounds the best cuz the fluid in the resivour is black and i dont remmeber brake fluid being that color, its clear right?

 

Kind of a clear (depends on the brand). If you drain the res. take a paper towel (no lint) and clean out it's insides, that is where the black stuff mainly is, clinging to the sides.