Gravity bleed to refresh the fluid would work like this. You would remove the old fluid, as much as you can from the MC reservoir. You can use vacuum or even swab it out with paper towels. ( a real mess). Then fill with fresh fluid and keep refreshing it as you gravity bleed. The bleeder is always at the top of each hydraulic unit, wheel cylinder or caliper. Fluid line is always below the bleeder. It may not be 100% perfect, but you will get most of the old fluid out with some patience. When I do a flush, I use a vacuum bleeder to save time and exchange more fluid faster. But I ALWAYS finish with a gravity bleed because I want all the air out and a firm pedal. We have to teach 1 person bleeding because no shop is going to let 2 people at $125.00 an hour each bleed someones brakes. Also, most car enthusiasts work alone.
|