Brake Fluid Change Question
Thread Starter
Instructor
Joined: Mar 2008
Posts: 125
Likes: 0
From: Grand Island Nebraska
Brake Fluid Change Question
I'm planning on a extensive brake upgrade and I've seen several people say "don't let the master cylinder get empty". I can't seem to find any explanation as to why so, and maybe this is an obvious question, but why is this such an issue? What am I not considering? If I plan on completely flushing the system anyway is it still a huge concern? I appreciate any input.
Also, is gravity bleeding an effective method of flushing the system on a C5?
Also, is gravity bleeding an effective method of flushing the system on a C5?
Pro
Joined: Mar 2010
Posts: 595
Likes: 2
From: LA/OC border, probably sittin' under the patio, by the pool...smokin' a cigar! SoCal
I used "speed bleeders" to do mine. Super easy. Sucked up most of the old brake fluid with a turkey baster, topped of with fresh brake fluid, and bled the calipers. Probably don't want to let the resivor get completely empty, helps keep air out of the brake lines.
Drifting
Joined: Feb 2007
Posts: 1,793
Likes: 7
From: Santa Maria Ca.
If air gets in the system through the master cylinder,you get to start over-if you get air in the BPMV,someone with a Tech II will have to get it out for you.
It's not that much of a deal to keep your eye on the fluid level-the master cylinder holds quite a bit of fluid.
Speedbleeders are well worth the $20- part number is Dorman #12706-they make it a one man ,half hour job.
It's not that much of a deal to keep your eye on the fluid level-the master cylinder holds quite a bit of fluid.
Speedbleeders are well worth the $20- part number is Dorman #12706-they make it a one man ,half hour job.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
yeah, the only reason you dont want the master to run dry is that it will let air into the system at the very beginning and then you will have to start completely over. It is not catastrophic but a waste of time and fluid.
