anyone have a good c3 specific procedure for flushing out old brake fluid? looked around and alot of generic info, but not c3 specific.

i have a mityvac pump.

71Shark and I had to change the master cylinder, calipers, front crossover pipe and end lines from rubber to braided steel.

We bench bled the master cylinder (takes a LONG TIME), replaced it, pulled the calipers, then the rubber hoses (be SURE to support both the pipe and the hose), then changed out the crossover pipe and started to bleed the system.

We used the standard bleeding recommendations, inside left rear, outside left rear, inside right rear, outside right rear, left front, right front and used his hand pump to pull the fluid thru till it was clear on all four calipers.

Note: Have LOTS of fluid on hand.

There is probably an easier way to do this, but it seemed to work for us.

I did my complete system and used a plastic syringe to inject new fluid into the new calipers, instead of pumping the pedal or using one of those hand vacs.  Then final bleeding of the remaining air was easy.

Nothing beats a pressure bleeder! Fill the tank with fluid, pressurize it, and go around the car and open one bleeder at a time. One man job and fast. I do mine every couple of years.  Mike

I gravity bleed most systems, that way you won't push or suck any crud into places you don't want to, like anything with ABS on it. Just keep the master cylinder full, do one wheel at a time till the fluid is clean.

I drain the master cylinder with a piston syringe, then fill it with my new brake fluid.  Last time I had the brake lines off so draining the old fluild was more simple, but if not bleed in the order that dnv posted using the MityVac pump. Make certain the master cylinder always has plenty of fluid in it! I prefer to use ATE Super Blue brake fluid in my "good" cars, it's DOT3 compatible and one of the best brake fluids out there.  It comes in either blue or gold, so you can actually see a difference bewteen the old and new fluids while you bleed.

Dang...Mike stole my response!
I have to say a pressure bleeder is the ONLY way to go. (Of course, I have one, so that makes it easy for me to say!) The hand-held vac. pumps aren't worth a poot for Vettes, IMO. I also pre-fill the calipers when I do them, so there's less air in the system to bleed out afterwards.

Without a pressure bleeder, you just have to open the bleeder screws, and let it gravity bleed for a while, and then start tuh pumpin 'til you get clean, fresh fluid out the bleeders. This is a little hard on the master cylinder, tho.Adams' Apple2007-01-23 20:43:43

Build your own pressure bleeder on the cheap!

all good suggestions-

if im going to drain the whole system and flush it out, think ill upgrade to s.s. hoses and replace whatever lines i can.

gotta admit that home made pressure bleeder is BRILLANT!

think im gonna build one just for fun!

Maybe we should put all of this together into one proceedure and post it on the tips and tricks section-

thanks for the input guys!

The only comment I have is to the sequence (I'll have to look it up tonight).  I thought you started at the fartherst point in the system from the master cylinder - which would be the right rear - and worked to the closest: