What Compressor To Use With Pneumatic Brake Fluid Bleeder
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- Опубликовано: 31 авг 2015
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In this video I will go over the requirements to properly operate this Harbor Freight pneumatic Brake Fluid Bleeder tool. The user guide only mentions using 90PSI, but does not mention the CFM requirements. I will explain the setup I have in my garage to be able to use this tool properly.
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Watch First Video: "Harbor Freight Pneumatic Brake Fluid Bleeder - One Person Job"
• How To Use HF Pneumati...
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the threads of the bleed screw are also a frequent source of air leakage which will cause misleading air bubbles to be seen, so removing the bleed screw and applying a bit of sil-glyde there would help. doesn't affect the bleed process but just helps if you're looking to see if you had any remaining air in the system, when a component is replaced.
This unit worked excellent for me....set your compressor to 90lbs of air pressure and it works like a charm. Refill bottle also worked great in keeping the new fluid full. Good review....
The SCFM doesn't really matter, you can use a little pancake compressor and as long as it gets up to the PSI it will work. The SCFM on the hand pump bleeders are much less than what even a pancake puts out and they work as well. With a pancake you might have to wait a little for it to get back up to pressure but it will still work.
I tried to use a small compressor, it only worked for the for 3 seconds or so then the flow was too low for the venturi effect vacuum to work. I now have a 220v 33 gal compressor and now this tool works great. My big air compressor is capable of 10cfm
I love your vids man! They are concise and stay on point... Oh yeah...my Honda Odyssey transmission fluid change went well thanks to you!! Keep it up man.
+obadiah7771 Thanks for your comment!
I did my Harley Road King brake lines and clutch line. Full replacement of the fluids with a small pancake compressor with no problems.
Yea i would
Think thay enough i mean geez a hand pumped mityvac has enough pressure
Thank you for doing this. Good follow up. Good video.
great report
I've had a Griot's Garage brake bleeder for a few years that looks very similar to this one; I've never used it. I use a cheap one-man bleeder instead. I might have to try out the pneumatic bleeder.
This is very helpful video, explains why i was having trouble with my small compressor
I think you are confused about the CFM. It doesn't matter if you use the kit how it is 'supposed' to be used. Like so many on RUclips using this kit, they tend to think that you run the air pressure continually while the bleeder valve is open. It's not supposed to be done that way. You close your bleeder valve, connect your hose, create a vacuum in the tank with air pressure, then let off the trigger (stopping the compressed air flowing). You then use the residual vacuum in the tank by opening the bleeder valve and then close it after fluid stops moving. You do this over and over again until you see no air in the line. I know the instructions are vague, but if you read it over and over again, you'll see that they 'attempted' to describe the process. So the CFM doesn't matter creating a vacuum... it just takes longer with a low CFM compressor. The hand-held kit works just as well.
Thx
I used a smaller compressor bleeding brakes on a motorcycle with mixed results,it eventually worked but I think a larger unit with a bigger tank would have worked better
I have that same snap on light too 😂
i just bought this kit tonight and there was only 2 left in stock. so that maybe that it is a great product and always selling out. lets see how it goes. anyone else is input on this product? let me know from your experience....
I found the exact spelling of Silvalyde, it is Sil-Glyde by NAPA could you explain more about it use(s)?
I have the Blue Point brake bleeder by Snap On that I bought a long time ago and did not use and now that I want to use it I connected it to a compressor but I am not getting suction or should I say vacuum and I don't know where I kept all the adaptors and manual that came with it so I don't know what could probably could be going on.Please let me know if possibly there is anything you understand about it.Thanks and I look forward to hearing from you asap .
What if I put tube which is connected from the bleeder to the reservoir and keep hitting the brakes. It might take all the air bubbles out, right? Even if it comes with air, it's gonna be on top of reservoir making it float back to top on reservoir again. Am I correct?
Will this bleed the ABS System Module when replacing the master Cyl on a 98 Monte Carlo?
Lol I have that same compressor. I like it it's a good compressor
You did not show how to use the other tank, I gather from the manual that it is used for replenishing the Master Cylinder Reservoir, but how well does it work!
Hi, how much vaccum does the tools produce for bleeding the brake system? Is it capable to bleed an ABS brake system? Thanks.
I have the same tool. My compressor is 4 gallons, 4 scfm at 90 psi. It behaves the same as yours. I don't see a steady flow filing the whole tubing. It's just like streaming inside the tube. I guess it's ok since the old fluid eventually gets into the waste bottle.
I did purchase this kit just to give it a try, since it did look too good to be true. Well, it didn't do a trick for me. Dewalt compressor, 5sqfm, set at 110 psi. The system didn't produce enough vacuum to suckthe fluid from the brake system. What I think too is, that the concept of sucking the fluid out from the calipers sucks comparing to the concept of pressurizing the new fluid into the expansion tank, since when you suck the fluid from the caliper you are actually sucking the air from the brake fluid outlet, since if you loosen it the fresh air starting to go into the system through the thread, so it's kinda looping around. On the opposite when you pressure the new fluid from the expansion tank side - there is no way for the air to come into the system. My set will go back to Harbor Freight. Unfortunately didn't meet the expectation at all, or I'm missing something big time.
I don't have the stand for it though. Where did u get the stand?
Nice! The last compressor you showed is the one i have. I need to get this kit and replace the fluid on my cars. My mechanic wants to charge me about 125.00 to do this. My wife does not have the patience to sit in the car an pump the pedal.
LOL nah it's not that is just that she does not understand how long it takes to get all the air out after opening up all the lines.
Does fluid shoot out as some say?
Great video. Very informative about scfm. Just wondering what amount of vacuum you are getting from the black connector of the brake bleeder. I only get about 17 hg at 90+ psi and 6.8 scfm per my compressor. Tested vac hold all the way to the check valve in the handle so no leaks in tubing. Tool did the 1 man job but not sure if it was really needed or working up to par.
Sam Weatly !
Great video, thanks! What is the cylindrical bottle with the kit for?
Feeds new liquid into the reservoir.
Have fun getting parts for the device. loaned the tool to a good friend and the muffler part on the front broke. I emailed @HarborFreightTools and requested a replacement part or where to get it. They informed me the tool isn't available anymore. After a little searching on Harbor Freight I found they carry it under another name brand now. Poor customer service if you ask me given I buy alot thru them. This tool was used only once and the plastic muffler on the front is brittle so beware that parts and next to impossible to get should you need them.
under a different part number and parts aren't available from harbor freight. However did find it on flea Bay so I bought another one cheap and use it. The broken muffler one will be used for spare parts now.
These kits should come with the adapter idk why they don't or at least why mine didn't.
will this work on a hydraulic clutch system? my daily is being an a hole and not wanting to build pressure on my pedal
It should, but from my experience it's just as easy to open the slave cylinder bleed screw with a tube attached going into a bottle of fluid, then pump the clutch pedal by hand a few times. With the bleed screw open the clutch pedal should be able to be pumped easily. I usually sit on the door sill while pumping the clutch pedal and keeping an eye on the clutch MC reservoir at the same time. It's way, way easier than bleeding brakes.
* _Which_ compressor
I noticed all of the Craftsman® branded air compressors you pulled up the specification sheets for are the "oil-free" type. What is your opinion of the longevity of these - especially the larger tank size (i.e. larger than a pancake-style tank)?
I have a Campbell Hausfeld™ 2-gallon tank unit for home use; I took very good care of it for 13 years but the piston seized up and now it is of no value to me. CH™ no longer has spare parts for my model :-(
I really want to acquire another compressor for home use but I want it to last a lifetime with proper maintenance.
The Craftsman compressor I used as examples in the video were simply just examples and not reflecting any real world reliability. CH do make some very good compressors (better than Sears). The Dewalt I am using is also oil free and had many good reviews. I hope it will last quite a long time.
Cool. Thanks! In my experience with the CH™ oil-free compressor, I believe if I would have periodically replaced (like every 5 years) the Teflon® piston rings I'd still have a functioning air compressor. You may want to look into this with your DeWalt. The rings are cheap and available - at least for the Cambell Hausfeld they are. Access and reassembly is not too complex either.
i have the craftsman vertical compressor. going on 11 years. i don't use it every day. more like 4 or 5 times a month. would recommend it for the home use even if you used it every day.
@@ronaldschild157 if the piston rings are cheap and easily available buy a few sets now before they become obsolete. Then when you need them no worries about finding parts.
I'm just curious . . . what is the purpose of putting a splitter in your air system?
+Jaguar151 Because my setup is for home use in a small garage, I split it so one line goes to the hose reel for my tools, and the other goes to a separate line system which provides outlets on both sides of the garage for putting air in my tires for both cars.
What’s the four white plastic bits with the three legs on them?I got em as well
They are legs to fit into your brake fluid reservoir to support the refill bottle hands-free.
@@chrisboyd4433 ok thanks
1/4" clear hose the length for project. 32oz Gatoraid bottle (tough
bottle and reusable). 1/4" inline open and closed valve installed on
caliper hose for vacuum control. 5/16" or your hose size to connect to
your engine for vacuum source. Hot glue this hose to bottle cap. Drill
hole and push 1/4" line into bottle. Start engine and bleed away for
cheap. What maybe $7 bucks compared to $35.00 plus tax at China Freight?
Does this work with the 3 gal. air compressor from HF?
it will but it takes awhile,and you need to watch the line making sure the fluid dont go backward
What is the exact spelling of the grease you suggest using, Silvalyde?
I was using Sil-Glyde
Thank you for the spelling, how important is it to use Sil-Glyde, will vasoline or number one chassis lube grease do?
@@wellingtonwebb7304- Literally any grease will do, even spit! It's just for momentary use. In fact it's advisable to clean any excess as soon the job is done.
If in an area with lots of salt (ice/snow...) make sure to clean it. Otherwise in a short time it will be a blob of cr_p just good to rust it all in place. ;-)
Cheers
Will 1/3 hp max psi 100 hot dog compressor work
No it will not work.
You're very worried about matching the compressor to the bleeder...ANY compressor that makes 100 or so psi will run this. If it has a lower compressor rating, you just may have to wait a bit while it refills the tank, which does not matter a bit- just wait!
A giant compressor that is unplugged has a compressor output of zero CFM, and will rum that bleeder just fine, until tank pressure drops. A small tank will obviously deplete quicker.
A small low cfm compressor will fill a huge tank just fine- again, you just have to wait.
SCFM vs CFM? Same...some people just drop the "S", which means "standard"...meaning the amount of air (mass) that occupies a cubic foot at standard temperature and pressure, which is 15c/59f, and 29.92 inches of mercury. That amount of air would weigh 0.0807 lb. Over an ounce, by the way.
I say this stuff because the video, and the bleeder specifications, imply that you can't use the bleeder with a smaller compressor, which is not true. Just buy the damn thing and plug it in...if the pressure drops, wait a little. No analysis of tenths of a CFM is needed.
Teflon tape on the bleeder threads will reduce or stop ingress of air into the bleed tube, which upsets some uptight people, but actually doesn't matter, it does not enter the caliper so long as the bleeder is tightened while vacuum is applied, so no minute flow reversal occurs, which could result in a little air entering where it shouldn't.
Experiment and figure it out, rather than fussing over 0.2 cfm...
Also, NO shop runs any air tools at 90 psi, are you kidding me? That's funny. You'll only see 90 psi when the compressor is broken, and on its way to zero. 120 to 150 psi is pretty common. You are way too worried about those specs...learn which of those matter.
That 90Psi that your regulator is set to (haha) is only at the regulator, when there is flow, every fitting and restriction causes a pressure drop. Every foot of hose does, also. You have less than that at the tool, when the trigger is pulled, probably a lot less. Crank it up!
I have never seen two regulators to step down to 90, or anyone or any shop that uses 90.
Vacuum bleeders won't work on vehicles with ABS units like on my 2001 Dodge truck. You have to scan the ABS unit to purge the air out of it. Computerized vehicles suck!
I Dell asleep halfway through
kiss
Pressure bleeding is way more reliable
Where did you get your pressure kit?
The tool uses a high volume of air.... look up "venturi" to see how the tool operates to create a "vacuum" .....cfm n compressor specs dont mean shit if you have a 100 gallon tank when taking about this tool. Cfm only comes into play with smaller tank storage as that's is the amount of air it can replace while running over a given time. A "minimum of a 6 gallon" will run this.... smaller will work too, it'll just take you longer as you wait for the compressor to fill cycle everytime you pull the trigger and use up the stored supply. Even with a small compressor cycling full to empty many times is still battery than hand pumping.... unless you just do this once in a while on one or two brake lines.... then buy the hand pump one if you don't own a compressor....BUUUT if you're competent enough to be bleeding brake lines then most likely you already have a compressor.