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Another Brake Fluid Flush Question #4673571
02/21/18 05:19 PM
02/21/18 05:19 PM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Iíve lost track of how many one-man brake fluid flush videos and DIY tutorials Iíve watched and read. I always use my Vacula but wonder if there is a better, easier way. Eric the Car Guy has a video where he pumps the brake pedal while fluid is expelled through a plastic tube into a bottle. I always wondered why air isnít sucked into the system past the bleeder threads when the brake pedal is released. I certainly see a lot of air bubbles in the fluid when I use my Vacula. The way I learned as a kid was you have a partner who works the brake pedal. You open the bleeder on the down stroke but close the bleeder before the pedal is released. Question: can one person pump the brake pedal with the bleeder valve open? This would certainly make the job easier. Thanks.

Here is what I use although I rigged it to operate with a mechanical vacuum pump instead of an air compressor.

http://tool-xpress.com/store/product/vacula-air-canister-brake-bleeding-system-1-9-qt-vu18-0051/

Last edited by artbuc; 02/21/18 05:25 PM.
Re: Another Brake Fluid Flush Question [Re: artbuc] #4673593
02/21/18 05:38 PM
02/21/18 05:38 PM
Joined: Jun 2002
Posts: 12,638
The Motor City
Kestas Offline
Kestas  Offline
Joined: Jun 2002
Posts: 12,638
The Motor City
Yes, it can be done. I routinely do one-man bleeding. You crack open the bleeder screw about a half turn. This allows fluid to flow out under pressure and releasing the brake pedal lets only a tiny amount to be slurped back in... kind of a poor man`s one-way valve. Keeping a tube on the bleeder screw makes sure no air is slurped back in.

Re: Another Brake Fluid Flush Question [Re: artbuc] #4673594
02/21/18 05:40 PM
02/21/18 05:40 PM
Joined: Dec 2009
Posts: 26,177
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 26,177
Regina, Saskatchewan, Canada
Gravity bleeding can work, too.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Another Brake Fluid Flush Question [Re: artbuc] #4673610
02/21/18 05:56 PM
02/21/18 05:56 PM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan


https://images-na.ssl-images-amazon.com/images/I/71Z5x4eszIL._SL1500_.jpg

(Embedded images preview isn't working for me lately)

Perhaps more versatile, and almost certainly more reliable than your Vacula, which is way overkill for non-pro use. Good name though.

But its only 0.5% of the cost, so its not going to fly on bitog.

IF it sucks air (you can pull or push fluid, or cycle between them) if you hold the syringe higher then the bleed screw the bubbles will rise into it.

Last edited by Ducked; 02/21/18 06:23 PM.
Re: Another Brake Fluid Flush Question [Re: Kestas] #4673619
02/21/18 06:05 PM
02/21/18 06:05 PM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Originally Posted By: Kestas
Yes, it can be done. I routinely do one-man bleeding. You crack open the bleeder screw about a half turn. This allows fluid to flow out under pressure and releasing the brake pedal lets only a tiny amount to be slurped back in... kind of a poor man`s one-way valve. Keeping a tube on the bleeder screw makes sure no air is slurped back in.


What about air sucked in past the bleeder threads?

Re: Another Brake Fluid Flush Question [Re: artbuc] #4673623
02/21/18 06:07 PM
02/21/18 06:07 PM
Joined: Mar 2013
Posts: 5,020
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 5,020
The Midwest
My own home made one man brake bleeder. I bought the 3/8" O.D. - 1/4" I.D hose at an ACE Hardware and used a quart drinking bottle.



Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Wanted: 2019 Ford Ranger
Re: Another Brake Fluid Flush Question [Re: artbuc] #4673624
02/21/18 06:09 PM
02/21/18 06:09 PM
Joined: Jan 2016
Posts: 259
Ada county Idaho
MRtv Offline
MRtv  Offline
Joined: Jan 2016
Posts: 259
Ada county Idaho
Honestly I was skeptical of the one man bleeder system. So I decided to try it out. I made the bleeder as shown on youtube. Hooked it up and cracked open the bleeder valve. Pressed on the pedal several times and and checked the fluid level. Found on my vehicle I can pump the brake pedal a dozen times before needing to refill fluid level. It did work. I do it this way all the time now. Wife is much happier not having to be the brake buddy.


2014 Nissan Versa Note 1.6 liter engine. 1997 Ford F150 4x4 4.6 liter engine.
Re: Another Brake Fluid Flush Question [Re: artbuc] #4673644
02/21/18 06:28 PM
02/21/18 06:28 PM
Joined: Mar 2013
Posts: 5,020
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 5,020
The Midwest
Tip for first time bleeders: You will empty the brake fluid reservoir faster bleeding the front brakes vs the rear brakes on most vehicles.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Wanted: 2019 Ford Ranger
Re: Another Brake Fluid Flush Question [Re: MRtv] #4673645
02/21/18 06:28 PM
02/21/18 06:28 PM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: MRtv
Wife is much happier not having to be the brake buddy.


No experience using wives for this, but I've tested Scottish and Taiwanese girlfriends in this role. Neither were very reliable, and they are probably also the most expensive solution on the market.

Re: Another Brake Fluid Flush Question [Re: artbuc] #4673650
02/21/18 06:34 PM
02/21/18 06:34 PM
Joined: Oct 2016
Posts: 190
MN
ZebRuaj Offline
ZebRuaj  Offline
Joined: Oct 2016
Posts: 190
MN
You need two things for the 1 man bottle tool to work:
1) correct ID rubber hose. use a small hose clamp to seal if anal.
2) fluid present inside the bottle covering the lowest level of the hose

#1 helps minimize risk of air bubbles making it through the hose/nipple connection.
#2 makes it so there's no air, but rather fluid coming back up the hose when you let off the brake pedal. After a few cycles, any residual air in the tube from the start has been pushed through and the hose is pure fluid. The tiny bit of old fluid that gets pulled back up by letting off the pedal is nil and not enough to be a concern. Just keep cycling the fluid.


~Shade tree mechanic for friends and family.
Re: Another Brake Fluid Flush Question [Re: skyactiv] #4673653
02/21/18 06:36 PM
02/21/18 06:36 PM
Joined: Oct 2014
Posts: 12,553
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,553
Idaho
Originally Posted By: skyactiv
My own home made one man brake bleeder. I bought the 3/8" O.D. - 1/4" I.D hose at an ACE Hardware and used a quart drinking bottle.


This is the machine that works. This is how I have been bleeding my brakes for decades






2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Another Brake Fluid Flush Question [Re: Garak] #4673733
02/21/18 07:26 PM
02/21/18 07:26 PM
Joined: Nov 2006
Posts: 20,559
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,559
MA, Mittelfranken.de
Originally Posted By: Garak
Gravity bleeding can work, too.


+1 It can and does, too easy right.


ASE L1, Master. Deutsch Meisterbrief.
Re: Another Brake Fluid Flush Question [Re: Trav] #4673800
02/21/18 08:06 PM
02/21/18 08:06 PM
Joined: Sep 2004
Posts: 7,796
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,796
Marshfield , MA
Originally Posted By: Trav
Originally Posted By: Garak
Gravity bleeding can work, too.


+1 It can and does, too easy right.
If a gravity bleed doesn't work. There is a leak sucking in air. It proves your work when replacing lines.

Last edited by andyd; 02/21/18 08:13 PM.

'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Another Brake Fluid Flush Question [Re: artbuc] #4673831
02/21/18 08:31 PM
02/21/18 08:31 PM
Joined: Mar 2008
Posts: 7,305
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,305
USA
speed bleeders are awesome smile

Re: Another Brake Fluid Flush Question [Re: andyd] #4673882
02/21/18 09:22 PM
02/21/18 09:22 PM
Joined: Nov 2006
Posts: 20,559
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,559
MA, Mittelfranken.de
Originally Posted By: andyd
Originally Posted By: Trav
Originally Posted By: Garak
Gravity bleeding can work, too.


+1 It can and does, too easy right.
If a gravity bleed doesn't work. There is a leak sucking in air. It proves your work when replacing lines.


It doesn't really matter, the master cylinder is above the bleed screw, it has not option other than to drip out. You are right about it sometimes taking a longer time but eventually it will.
On those I usually just give the brake pedal a light touch to get it moving.

When installing new calipers I always remove the bleeders first and put a couple of turns of thread tape on them and put them back in without bottoming. This seals the threads and once bled and tightened prevents the screw for seizing later.


ASE L1, Master. Deutsch Meisterbrief.
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