Brake bleeding question
Thread Starter
Melting Slicks
Joined: Jun 2000
Posts: 3,431
Likes: 298
From: MN-C3, AZ-C7
Brake bleeding question
New calipers are set to go back on with new hoses etc. I popped the top off the master cylinder and was surprised to still see fluid in it?
I would guess as soon as I push the pedal it will send it on it's way down the open lines. I'll suck it out.
What the process to gravity bleed the system with the lines open and letting the fluid seek it's way down before I put the minivac on it?
If the fluid is sitting in the Master Cylinder now...how do you get gravity to send it down the lines with the bleeder screws open?
Thanks,
JU
Instructor
Joined: Dec 2000
Posts: 178
Likes: 0
From: Twin Lake MI
Re: Brake bleeding question (John Ulrich)
John,
I bought a one gallon garden sprayer a few years ago and fitted the pump with 1/4 inch tubing and a 1/4 inch valve. Then made a steel plate the size of master cylinder and glued a rubber gasket on it. Then I drilled and tapped a
hole in plate over one part of resevoir that accept a 1/4 inch male punch lock
Fit tubbing to steel plate a force bleed. I also added a Tee before shut-off valve for a gauge to monitor pressure. I had about 15 bucks in system. It
works faster than gravity altho maybe not any better. I wasted no fluid either,
I put a short piece of tubing on bleeder screws and pumped it into a Mountain
Dew bottle. It helped because I could see when all old fluid was out. I'd put about 15 pounds of pressure on bottle and bleed one at a time. There is a correct procedure for bleeding in a certain order. I followed it and had no problems. My brakes have never worked so good after complete rebuild.
Steve I held plate on with "C" clamp
[Modified by s79vette, 11:43 PM 5/29/2004]
I bought a one gallon garden sprayer a few years ago and fitted the pump with 1/4 inch tubing and a 1/4 inch valve. Then made a steel plate the size of master cylinder and glued a rubber gasket on it. Then I drilled and tapped a
hole in plate over one part of resevoir that accept a 1/4 inch male punch lock
Fit tubbing to steel plate a force bleed. I also added a Tee before shut-off valve for a gauge to monitor pressure. I had about 15 bucks in system. It
works faster than gravity altho maybe not any better. I wasted no fluid either,
I put a short piece of tubing on bleeder screws and pumped it into a Mountain
Dew bottle. It helped because I could see when all old fluid was out. I'd put about 15 pounds of pressure on bottle and bleed one at a time. There is a correct procedure for bleeding in a certain order. I followed it and had no problems. My brakes have never worked so good after complete rebuild.
Steve I held plate on with "C" clamp
[Modified by s79vette, 11:43 PM 5/29/2004]
Melting Slicks
Joined: Jul 1999
Posts: 3,201
Likes: 0
From: Clifton Park NY
Re: Brake bleeding question (John Ulrich)
What the process to gravity bleed the system with the lines open and letting the fluid seek it's way down before I put the minivac on it?
:cheers:
-Pedro
