Tool Time: Pressure Bleeding Brakes
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Date: 2020-08-05
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Comments and reviews: 10
Buildurtruck91
Honestly way to expensive of a system would never drop money on a pressure bleeder. Ive pressure bled brakes for years with nothing but a compressor a hose a spare cap for the reservoir and a small air blower hooked to the cap. Just top it off every line you bleed a line air can't bypass the fluid. Just as effective and best of all free to any tech or any real mechanic that has a semi stocked box. any decent compressor has a regulator so just crank it down to 5 to 10 psi and crack the brake line I also bleed master cylinders using this set up as-well so I dont have to spend 20 mins bench bleeding it every time.
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Honestly way to expensive of a system would never drop money on a pressure bleeder. Ive pressure bled brakes for years with nothing but a compressor a hose a spare cap for the reservoir and a small air blower hooked to the cap. Just top it off every line you bleed a line air can't bypass the fluid. Just as effective and best of all free to any tech or any real mechanic that has a semi stocked box. any decent compressor has a regulator so just crank it down to 5 to 10 psi and crack the brake line I also bleed master cylinders using this set up as-well so I dont have to spend 20 mins bench bleeding it every time.
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GNX157
Whichever system or technique you use, just remember a lot of cars will have a proportioning valve system that also senses a drastic fluid pressure imbalance such as a cut brake hose etc. such that the valve will swing one way or another and close off that part of the brake circuit so the other lines can stop the car. I mention this because it's possible to trigger this system while bleeding it and will need to be reset before bleeding can resume on the closed off section.
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Whichever system or technique you use, just remember a lot of cars will have a proportioning valve system that also senses a drastic fluid pressure imbalance such as a cut brake hose etc. such that the valve will swing one way or another and close off that part of the brake circuit so the other lines can stop the car. I mention this because it's possible to trigger this system while bleeding it and will need to be reset before bleeding can resume on the closed off section.
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justin
May not be advised but doing a bleed on my truck not a flush. I just bought the adapter for the reservoir which was like 25 bucks and changed the hookup to fit my pancake air compressor turn the dial to roughly 15psi then opened bleeders till no bubbles and tighten it back up. Obviously I would constantly check reservoir and keep it topped off. When finished release pressure and remove adapter check level and put the cap back on, no mess or pumping the pedal worked great.
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May not be advised but doing a bleed on my truck not a flush. I just bought the adapter for the reservoir which was like 25 bucks and changed the hookup to fit my pancake air compressor turn the dial to roughly 15psi then opened bleeders till no bubbles and tighten it back up. Obviously I would constantly check reservoir and keep it topped off. When finished release pressure and remove adapter check level and put the cap back on, no mess or pumping the pedal worked great.
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1oldmaster
Tip for the Branick / Gearwrench / KD Tools, pressure bleeder, (theyre all the same identical unit made by Branick. Under 300 on Amazon. When you finish bleeding the system, turn off the air inlet valve at the regulator. Next, disconnect shop air from the regulator. Then slowly open the air inlet valve. This will depressurize the bleeder tank, and the entire vehicle hydraulic system. Then you can remove the reservoir adapter without getting a brake fluid shower; )
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Tip for the Branick / Gearwrench / KD Tools, pressure bleeder, (theyre all the same identical unit made by Branick. Under 300 on Amazon. When you finish bleeding the system, turn off the air inlet valve at the regulator. Next, disconnect shop air from the regulator. Then slowly open the air inlet valve. This will depressurize the bleeder tank, and the entire vehicle hydraulic system. Then you can remove the reservoir adapter without getting a brake fluid shower; )
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GNX157
My concern with this pressurized system is the brake fluid sitting in the tank over time. It's hydroscopic and starts absorbing moisture right away, lowering the boiling point in the process. For a shop I can see the benefit since they'll likely use the fluid up and replace fairly quickly but for a DIY, I think the left over fluid would need to be discarded and fresh used if it's been sitting more than a few weeks.
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My concern with this pressurized system is the brake fluid sitting in the tank over time. It's hydroscopic and starts absorbing moisture right away, lowering the boiling point in the process. For a shop I can see the benefit since they'll likely use the fluid up and replace fairly quickly but for a DIY, I think the left over fluid would need to be discarded and fresh used if it's been sitting more than a few weeks.
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Shaun
Four years ago I noticed that the shop I work for had one of those pressure bleeders in a corner behind an old grease caddy. So I pulled it out and asked the boss lady where the adapters for were and she said that they had been missing for years so she sold it to me for 15. I've cleaned it up and now I'm looking for the kit to go with it. So I was wondering if you had the part number for the adapter kit.
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Four years ago I noticed that the shop I work for had one of those pressure bleeders in a corner behind an old grease caddy. So I pulled it out and asked the boss lady where the adapters for were and she said that they had been missing for years so she sold it to me for 15. I've cleaned it up and now I'm looking for the kit to go with it. So I was wondering if you had the part number for the adapter kit.
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It's
I use shop air to a regulator, turned down to 15psi, hooked to a old brake reservoir cap that I have the hose going into. Hook it up to the vehicles master and just make sure you keep the master full. Then go around from farthest away to closest and crack bleeders. Never understood why ppl are so afraid to run it dry, its not THAT hard to keep an eye on it.
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I use shop air to a regulator, turned down to 15psi, hooked to a old brake reservoir cap that I have the hose going into. Hook it up to the vehicles master and just make sure you keep the master full. Then go around from farthest away to closest and crack bleeders. Never understood why ppl are so afraid to run it dry, its not THAT hard to keep an eye on it.
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GGALLIN1776
Maybe I'll luck out & find one on cl for 50, you'd be surprised. Picked up a 900 rigid ratcheting pipe cutter & threader for 40
Dude wanted 100 & was obviously tweekin out in his van, I said nope too much, later & gave in. His nagging gf saying TAKE IT TAKE IT so I think that helped the situration a bit.
Gas stations at night, gotta love em.
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Maybe I'll luck out & find one on cl for 50, you'd be surprised. Picked up a 900 rigid ratcheting pipe cutter & threader for 40
Dude wanted 100 & was obviously tweekin out in his van, I said nope too much, later & gave in. His nagging gf saying TAKE IT TAKE IT so I think that helped the situration a bit.
Gas stations at night, gotta love em.
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Trevor
Next question. If you have a vehicle with ABS module that needs to be powered, does this create any issues with pressure bleeding? have to cinfess I usually vac bleed brake systems so that I can see what is coming out. I always squeeze the caliper pistons in (or wind them in if it's that type of system) to try and make sure I get all the old crud out.
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Next question. If you have a vehicle with ABS module that needs to be powered, does this create any issues with pressure bleeding? have to cinfess I usually vac bleed brake systems so that I can see what is coming out. I always squeeze the caliper pistons in (or wind them in if it's that type of system) to try and make sure I get all the old crud out.
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Ron
Hi, I bought the Branick pressure bleeder after installing new brake calipers and pads. I flushed the system as well as air in my 2003 Chevy Blazer LS. When the engine is off the brake is hard but when I turn on the engine the brake goes easy to the floor? Any advise. Thanks.
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Hi, I bought the Branick pressure bleeder after installing new brake calipers and pads. I flushed the system as well as air in my 2003 Chevy Blazer LS. When the engine is off the brake is hard but when I turn on the engine the brake goes easy to the floor? Any advise. Thanks.
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