Billman's Brake Fluid Gravity bleeding revised
#62
I´m gonna install my HEL SS lines this week, would it be ok to install AND bleed the lines in the same order as Billman suggests? Or should i first install all 4 lines and then bleed the lines.
One would think it makes no difference right? Seems the best way as you dont need to put the car on stands you could just pull one wheel at a time, install the new line and bleed it and move on to the next.
One would think it makes no difference right? Seems the best way as you dont need to put the car on stands you could just pull one wheel at a time, install the new line and bleed it and move on to the next.
#64
To push the caliper piston or not to push the caliper piston?
I would think if you have really dirty fluid that is way overdue for a change, this would be a good idea. Get as much as possible of the old stuff, and the contaminents floating in it, out.
But if you have been changing it every 2 years like you're supposed to, and its not a track car, then I can't see much benefit from all that extra effort to pull the calipers to push in the pistons.
When you change engine oil you don't get all the old stuff out. Old mixes with new, but is so diluted its not a big deal. Same here.
The guy that ran his resevoir low and ended up adding air, instead of removing it now has a big hassle trying to get all that air out. This is a much better reason to keep the resevoir full and babysit it than any calculations on static pressure due to fluid weight vs difference in height between master and bleeder. Unless you do this every other day like Billman and know without looking how much fluid is left, best to err on keeping it full for the whole process.
I would think if you have really dirty fluid that is way overdue for a change, this would be a good idea. Get as much as possible of the old stuff, and the contaminents floating in it, out.
But if you have been changing it every 2 years like you're supposed to, and its not a track car, then I can't see much benefit from all that extra effort to pull the calipers to push in the pistons.
When you change engine oil you don't get all the old stuff out. Old mixes with new, but is so diluted its not a big deal. Same here.
The guy that ran his resevoir low and ended up adding air, instead of removing it now has a big hassle trying to get all that air out. This is a much better reason to keep the resevoir full and babysit it than any calculations on static pressure due to fluid weight vs difference in height between master and bleeder. Unless you do this every other day like Billman and know without looking how much fluid is left, best to err on keeping it full for the whole process.
#65
#70
Yikes.
So if the blue is not available, should the procedure be revised?
I'm guessing you would have to measure out the brake fluid coming from the calipers to make certain you got it completely changed?
Thanks,
Chris
So if the blue is not available, should the procedure be revised?
I'm guessing you would have to measure out the brake fluid coming from the calipers to make certain you got it completely changed?
Thanks,
Chris