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Vacuum bleeding brakes - questions:
- BlackBart
- Posts: 575
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Vacuum bleeding brakes - questions:
I'm bleeding brakes after installing new rear calipers. I usually do it the old fashioned way with Mrs Bart on the pedal. I have one of those Griot's vacuum bleeders that I've had in the box but never used it. They actually call it a multi-fluid extractor now. Has a tall cylinder vacuum tank and fittings.
So I'm having trouble getting the things bled correctly and I have no helper today. The fitting on the bleeder screw has to be held on with hand pressure - it doesn't fit over the bleeder like you do with a clear hose. You fill the rez filler bottle, pump up some vacuum, hold the fitting over the bleeder, open the bleeder, and then open a check valve in the hose. The vacuum sucks fluid out of the bleeder.
Sounds simple enough, but I'm getting a ton of big bubbles, it doesn't improve with time, and I've run a large bottle of fluid through it already.
Ideas for what I'm doing wrong:
1. I sucked ALL the old fluid out of the reservoir - I just read you should never go below the low line. True? Can't I just refill it?
2. I may be using too much vacuum with the pump?
3. I opened the bleeder wide, not just a crack. Maybe the air is sucking in though the threads?
It looks similar to this - that red fitting on the hose "fits" on your bleeder.....sort of.
Anybody tried this? Similar issues? I've read some good reviews of Eezibleed, where you use a spare tire with 10-20psi to pressure bleed through the cap, and also Speedbleeder valves at each caliper.
I'll bleed them the old way in the morning.
Thanks -
So I'm having trouble getting the things bled correctly and I have no helper today. The fitting on the bleeder screw has to be held on with hand pressure - it doesn't fit over the bleeder like you do with a clear hose. You fill the rez filler bottle, pump up some vacuum, hold the fitting over the bleeder, open the bleeder, and then open a check valve in the hose. The vacuum sucks fluid out of the bleeder.
Sounds simple enough, but I'm getting a ton of big bubbles, it doesn't improve with time, and I've run a large bottle of fluid through it already.
Ideas for what I'm doing wrong:
1. I sucked ALL the old fluid out of the reservoir - I just read you should never go below the low line. True? Can't I just refill it?
2. I may be using too much vacuum with the pump?
3. I opened the bleeder wide, not just a crack. Maybe the air is sucking in though the threads?
It looks similar to this - that red fitting on the hose "fits" on your bleeder.....sort of.
Anybody tried this? Similar issues? I've read some good reviews of Eezibleed, where you use a spare tire with 10-20psi to pressure bleed through the cap, and also Speedbleeder valves at each caliper.
I'll bleed them the old way in the morning.
Thanks -
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ex-1984 245T wagon
1994 850T wagon
2004 XC70 wagon BlackBetty
Is it time for a 1964 122 wagon?
1994 850T wagon
2004 XC70 wagon BlackBetty
Is it time for a 1964 122 wagon?
- MoVolvos
- Posts: 2071
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Re: Vacuum bleeding brakes - questions:
I purchased one and was hoping to do the brakes with it also besides all the oil changes and transmission fluid.
Did you empty the Brake Fluid Reservoir on one of the pulls?
Crack the bleeder valve just a little and I would put a drop or two fluid around the thread to see if the fluid is being pulled in. Put some bearing grease on the threads if you suspect air infiltration.
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https://www.amazon.com/gp/product/B00LC ... UTF8&psc=1
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Did you empty the Brake Fluid Reservoir on one of the pulls?
Crack the bleeder valve just a little and I would put a drop or two fluid around the thread to see if the fluid is being pulled in. Put some bearing grease on the threads if you suspect air infiltration.
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https://www.amazon.com/gp/product/B00LC ... UTF8&psc=1
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You do not have the required permissions to view the files attached to this post.
Blessings,
BKM
1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion
BKM
1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion
- jreed
- Posts: 1087
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Re: Vacuum bleeding brakes - questions:
I have had good luck pressure bleeding the brake system using a home-brew tool similar to the Eezibleed system. I built it with a hand-pumped sprayer from the hardware store and a spare brake fluid reservoir cap, some fittings and tubing.
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
- Goupil
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Re: Vacuum bleeding brakes - questions:
I bough an Eezibleed for my V70, works flawlessly (well, once I fixed the leaking valve...).
I was happily surprised considering how cheap it is
I was happily surprised considering how cheap it is
1998 Volvo V70 B5254T manual 193hp - 319 000 km
- June
- Posts: 1553
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- Year and Model: 2004 S80 T6
- Location: Jacksonville, Florida
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Re: Vacuum bleeding brakes - questions:
Can you post pics of your home-brew tool? Thanks, June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned
- abscate
- MVS Moderator
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Re: Vacuum bleeding brakes - questions:
Bart
Emptying the master cylinder reservoir was the mistake here. You might have to remove the master and bench bleed it, submerging it in fluid and pumping it until all ports are full
Emptying the master cylinder reservoir was the mistake here. You might have to remove the master and bench bleed it, submerging it in fluid and pumping it until all ports are full
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
- MoVolvos
- Posts: 2071
- Joined: Sun Jan 15, 2012 6:47 pm
- Year and Model: 03S80T6~08C30T5
- Location: NC
- Has thanked: 23 times
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Re: Vacuum bleeding brakes - questions:
This is a person brake bleeding method. There was only 1 bleeder valve (the rusty one) that showed brake fluid leaking through the threads. No fluid came out of the other bleeders valve threads. I always thought when the brake pedal was released air would go back in through the threads using his method but apparently it does not.
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Blessings,
BKM
1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion
BKM
1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion
- BlackBart
- Posts: 575
- Joined: Sat Dec 10, 2016 5:03 pm
- Year and Model: 2004 XC70 BlackBetty
- Location: Montana
- Has thanked: 39 times
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Re: Vacuum bleeding brakes - questions:
It took 10 minutes with Mrs Helpers help. And very little air came out, so I think that expensive gadget is over complicating a simple task. It could be just way too much vacuum, since some people gravity bleed.
Abscate -
I may check the fronts to see if any air got in the system, but the pedal seemed solid. Will double check though, thanks.
Abscate -
I may check the fronts to see if any air got in the system, but the pedal seemed solid. Will double check though, thanks.
ex-1984 245T wagon
1994 850T wagon
2004 XC70 wagon BlackBetty
Is it time for a 1964 122 wagon?
1994 850T wagon
2004 XC70 wagon BlackBetty
Is it time for a 1964 122 wagon?
-
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Re: Vacuum bleeding brakes - questions:
For single-person (no second person), I find 1-man bleeding works great.
- Air compressor set at 10 psi and modified cap (or buy the CTA cap for $8) works great:
DIY: 1-man Hydraulic Bleeding Kit for those with Air Compressor!
viewtopic.php?t=29243
- Air compressor set at 10 psi and modified cap (or buy the CTA cap for $8) works great:
DIY: 1-man Hydraulic Bleeding Kit for those with Air Compressor!
viewtopic.php?t=29243
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
2005 XC90 2.5T 110K+
- jreed
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Re: Vacuum bleeding brakes - questions:
There is a picture of my homemade pressure bleeder here:
viewtopic.php?t=58362
viewtopic.php?t=58362
You do not have the required permissions to view the files attached to this post.
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
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