I am the frugal diy king and this is one of greatest vids ive ever seen.

"You take a hacksaw"... *stops video and looks for the next one*

Got to Auto zone and they'll let you borrow an evacuation pump for a 150 dollar deposit that you'll get back when you return the pump. Go to harbor freight tools and get an ac manifold guage set for around 50 dollars. This gives you the ability to vacuum the low and the high side. When it is evacuated turn it off for 30 minutes like he did in the video and if it holds a vacuum there are no leaks. I say there are no leaks, but theres a good chance your schrader valves are leaking and it won't show up because your pump hoses are sealing them off, so just replace the high and low side ports before you do anything. they screw in and are only a few dollars. Then close the high side and add the refrigerant through the low side. Get you a can tap that will hook to the yellow hose in the middle.

so how do you evacuate the AC system in a car?

A 1980's GM shop manual for a R4 compressor says to evacuate to 28 to 29" of mercury. An auto's compressor is not hermetically sealed like a refrigerator or central AC units compressor. The shaft seal on a car's compressor may not allow a super deep vacuum like 200 to 500 microns like a houses AC compressor.

if u buy a 3 hose manifold the yellow hose will screw right on the pump u have . i know this becuse i own one of those pumps . and with the right tool u can suck down both the low and high side at the same time.

Could only make it half way thru the vid, between the 50 times he says harbor freight and hacksaw with no information i lost interest.

The end you hacked off fits perfectly fine into a proper gauge set's supply/evacuate (yellow) line. The right tools for the job means everything.

You never draw down a system while still charged with refrigerant. The vacuum pump is only used to remove moisture and aid in leak testing before charging.

HI HOW DOES THE COMPRESSOR REVERSE THE FREON WHERE DOES IT GO

Did you cut the end off with a hacksaw?

Maybe a dumb question but where does the refrigerant go? I need to evacuate my system to work on my motor

I used the jar vacuum hose on my foodsaver vacuum food sealer with a hose adaptor and an old a/c filler hose(yellow one) pulled 500 microns in about 2 minutes.

Where does the reclaimed refrigerant go? I don't see a recovery bottle.

The reason the tool has that extra nipple on the fitting is because the yellow line or third line that goes with the manifold gagues(which you are supposed to be using to tell how much vacuum you are pulling) is supposed to go on the side you so willfully butchered. Oh, yeah...DO check for leaks...How much does some soapy water and an old spray bottle cost? Probably less than a can a month! Nice job on the info, though! Keep up the good work.

Hahahaha, funniest shit I've seen on KZfaq yet! This is how NOT to evacuate an AC system.

i got lead here looking for the difference between "evacuating & vacuuming" the system....there are so many using these interchangeably though....but there are others using them mutually exclusive of one another....so which is it? Mainly, i want to see if i can just get away using a vacuum pump since my gas is already low/seeped out most the way.

Cool, I dont need to buy a pump, can use my air compressor, Thanks Bro!

How big of a compressor do you need to do this at home? All I have is a 3 gallon pancake compressor. Wondering if that would create enough vacuum.

Talk about a hack job! You do it good, confuse everyone.

And then where does the old freon go? Into the air compressor?

so where is the volume of displacement? where's it exit to and into what?

It works fine with the manifold gauge

also this system is designed to work with a manifold Guage and you can not properly vacuum down a system without pulling vacuum on high side too.

Thank you.for sharing.

cool idea I will do that

That's because the can threads are not the same as r134a gauge hose threads. The fitting is correct for proper use with a manifold gauge set.

I tried to Google the definition of the word "clueless" and it gave me a link to this video. WTF????

You do know that the fitting sitting above that one is the one you needed lol now you have to of the same entry port

If R134 is "not dangerous" why does EPA care whether it is evacuated into the atmosphere? I was wondering why Dean didn't connect his concoction to the car's system. Plausible deniability, perhaps?

the vacuum boils off moisture that could be in the system...

But that only evacuates the low side, right?

Can you reclaim the refrigerant with this unit?

The "grey area" real issue to ponder is a "Venturi air operated vacuum pump" pulls a lessor vacuum than a displacement type HVAC vacuum pump. More moisture remains in the system when a lessor pump is used. What this means is less moisture is removed and a greater "chance" exists that the filter dryer will fill up quicker and /or the expansion valve will freeze and thus no cooling. If a new dryer was installed the sin of using the lessor vacuum is hidden for awhile or a long time. But on the flip side Folks have used these lower cost Venturi vacuum "pumps" in cars AC stuff eons ago too with no issues. It is a lessor tool thus results do vary. I think the "dont drink out a garden hose and always wear a bicycle helmet" folks are bothered that a 2 stage 400 buck high end HVAC vacuum pump was not used. :) Harbor Freight's 96677 Specs say "Vacuum level: 28.3" of mercury at sea level Air consumption: 4.2 CFM @ 90 PSI" . Old Sun Equipment made one of these venturi-type affairs 50 years ago to. Air-Vac makes "Air powered vacuum pumps" and they state up to 28 inches of mercury vacuum. The Robinair / Mastercool's 91200 "air operated light duty vacuum pump" was R12 and R134a fittings as states 29" mercury at 4.5 cfm 90psi air flow. There are folks who have used another cars AC compressor to "pull down" and pull a vacuum to pull out moisture too. An old buddy of mine did that with two 1971 Ford Pintos. One of my folks old cars had an aftermarket AC added and the installer used a Sun Equipment venturi-type deal just like the HF clone one in this video. It lasted the life of the car. The vacuum level in the venturi-type pump is less than a displacement pump. It often will not even read on a HVAC micron vacuum gage. Eons ago many more folks used these venturi type " vacuum pumps" in auto AC work. Like a 1960's movie seen today folks can yell that kids did not wear helmets, drank out of garden hoses, used dial phones? As an aside before the EPA rules started in the early 1990's AC repair folks used the terms "evacuate" or "pull a vacuum" to mean one used a vacuum pump to remove the moisture from the AC system in the automobile before one added R12. There were no recovery devices. R12 was as low as 45 cents a can eons ago at Kmart. Kids had BB machine guns powered by a 12oz R12 Freon can. In cars R12 was replaced by R134a and now some cars have R1234yf. This newer refrigerant has no or little GWP (global warming potential)

Where isthe line to evacuate the freon and the container? In the next video about how to recharge but we are not going to see how to connect one or two out of three hoses?

great video

how can that cheap gauge he used give a negative pressure reading? it cant

That unit is for evacuating moisture and air from the system, not the refrigerant. Where does the refrigerant go when you suck it out? It goes inside that thing?

Maybe with the money you save by servicing your own A/C, you can BUY A FUCKING TRIPOD!!

How do you turn AC on without turning the car on?

And.... the Academy award for making an entire video completely out of focus goes to....

Thanks bro

60 bucks an hour versus violating epa regulation to have some dude evacuate your cars air conditioner that has no business dealing with refrigerant. Violating epa regulations is expensive. No epa cert equals huge fine. Sorry dean dont know if you are certified. If you are strike my comments from the record.

It's quite creative actually:) Now if you want to evacuate 134A, where the refrigerant evacuation tank is at? :)

thanks for the video ... how do you reuse / put back into the system, the r134 after you have removed it ...

Evacuation is about reclamation. If someone wanted to just evacuate the system they could just push the shrader valve and let the coolant go ijnto the atmosphere. This is a hap-hazard way to service your A/C system. I would advise a manifold at the least.

what air compressor ? does air compressor blow out air not suck in ? i dont get it

if your vehicle doesnt have freeon do you vacumm it?

I jb welded a r134 can tap on to the intake of an old compressor maybe I can use it to reclaim the Freon haha

Glad you made this video. Helped me out. Thanks

I wish that somebody would make a video that would demonstrate how to ethically remove the gas/oil from the system...maybe use a makeshift tank like an empty propane tank???? I'm working on my truck and want to replace the rotted condenser.

This is an old video are you still monitoring I have a question

I'm in the middle of this job, right now and just as frustrated any other guy below cussing up a storm. You're not doing your boy any good talking like that. It takes a mature man to relax for a minute, go in side and have a drink. Then regain yourself and do the job right. That's what grandpa (steelworker, miner, fireman, blue-collar forever) always said. If you do a job, you do it right. Tomorrow's another day. Get a tank or take it in, be a man about it.

Sounds like, without seeing it, the extended piece he cut off was probably an R12 fitting, as the inner piece is R134a. The two fittings are totally different size and thread types.

Where does the freon being removed go ?

Look, the idea is removing the moisture and atmospheric air from and AC system before charging with 134 (or whatever). Atmospherically speaking, 134 is not dangerous, that was the point of going to it from the freon gasses which were detrimental. Yes, he did butcher the fittings, but oh well, his choice... he should be using proper gauges and hoses, but honestly, a compressor driven vacuum pump is not going to put more than 2-4 negative pounds on the system anyways.

It’s made to huck up to a set of ac Gauges cheap that you’re using

Thanks bro doing this at my shop now and so is everyone else that I know that has a shop its really busy this time of year freon in the ozone is ok China does it and people are saving a lot of money there so can we in the good old usa not taking it to the so called experts good Job BRAVO Thumbs up hats off

lol that pump is made to work with the manifold gage set not that little hack gage that is made to fit a 12 oz Freon can, for around 50 dollars you can get a gage set at harbor freight

Are you DUI?

LOL all this does is release the r134 into the air thru the air compressor exhaust. Might as well just hook onebend of a hose up and let all that shit out.

There $16.00 now

If you release freon or 134 into the atmosphere you WILL GET HAIRY PALMS!!

Compressor puts air in,confused,want to vacuum system not air it out

Dude, where's the tank that you're pumping the R134a into?????

where does the old r134a go?

I'll never get those 7 minutes back. Cut it off with a hacksaw haha. Useless

They have retro fittings......

Air Vacuum Pump with R134A and R12 Connectors If only he had unscrewed the other cover he would have found the R134A connector. Now he can't work on the old R12 systems

and remember..you gotta use a hacksaw

So where does the gas that is recovered go?

Water boils at 29 lbs that will only vacuum not get the water.

Backwoods yokel

Hello

O.K. You go out to the yard and need to pull a used A/C compressor. If it's illegal or damaging to let R134 go into the air without proper recovery, why do they let you pull compressors ? I see people cutting hoses and letting it go into the air all the time out there. Salvage yards don't evacuate A/C systems, only fuel tanks. Maybe depends on the state. Doesn't make sense, you have to, to get it. Any TRUE answers ?

can someone explain how this works? where does the freon that you are removing go? This video is poorly made

I see that 143 people gave this the thumb up, that's 143 idiots, all happy to release freon into the atmosphere. All the 131,695 people watching the video can all afford to loose a can of R123 into the environment per month !!! If nothing else, video should be taken down for that reason alone.

I stopped listening to you when you said "you take a hacksaw ..." for the THIRD TIME. Holy crap man, get to the frickin point.

as to all the comments below; I think you've sorely missed the point which I believe was how to do this on the dirty cheap without spending $$$ on the "right" tools

you need very powerful air compressor. It will not work with a conventional one.

If you are smart, you will not listen to this guy.

you could have at least put the name/model or link to that orange device, because im clueless wtf is it and where to get it. all of this looks more expensive than paying someone 70$ to do it. but im watching the video because i cant find anyone who will do it for 70 or even a 100

not so great video, please pull it from your library. bad info guy. im sure you meant well.

its call vacuuming air out ac system not evacuating freon out of the system

Ok so I buy this, then I cut this thing off then I gotta buy this other thing. WTF? The gauge hes using is a very cheap gauge that doesn't read vaccum. Then he says don't look for leaks, u can afford a can a month? Fuck that buddy.If anyone followed your steps, I feel dab for them. DAMN SHAME

Do not destroy your air Vacuum Pump. Buy the proper gauges & follow directions. This guy is a NUT!

Thats no evacuated the freon though Its only a vacum

I am so confused.

Your video literally has nothing to do with evacuating the system like it claims it does. I got shit to do man thanks for wasting my time

dam dude sit through this while video and still have no idea how a blowing air compressor and can create a vacuum through that tool.

This video is so wrong, what about the high side evacuation? The yellow hose on a gauge set fits the connector on that pump. A set of gauges new is about $50 and you have them forever. AC jobs done right saves you costly repairs later and it will cost you later.

Tuesday June 2,2020 , looking in KZfaq how to fix my over charge ac on my car, having a bad day , wondering and sad that I over filled with ac oil and freon , sad! . And boom this work manship of a how to video just made my night . Ps. Going to harbor freight tomorrow , coronavirus is real and peace on earth.

Holy god bro get to the point . How many times repeat the same Thing . Where are you evacuating the system to ? . It’s going into the atmosphere you need a recovery tank if your pulling refrigerant

How the fuck does it "EVACUATE" the system when you are forcing air in with no release points? lmao

Dude, a few video-making tips. Get a friend or a tripod. Don't repeat the same stuff over and over. Who's going to "subscribe" to your channel if your videos are never-ending and REPETITIVE? You do realize we can go back to whatever point in the video we want to if we didn't hear something, right? FUDGE!!!!!

the difference between evacuation and vacuum what he is showing here is a vacuum pump not an evacuation system if you have freon in the system you are required by law to have it recovered by using a proper evacuation system once all the freon is out then you use this system to remove the atmosphere from the system air/moisture ect. DON'T RELEASE FREON INTO THE AIR. even though 134a is better for the environment it's still not ok to release it into the air.

your channel is called "Fix It Right First" but you haven't done a single "right" thing in this video, in fact this video should be called "Everything NOT to do to fix your AC"

To much back ground noise to understand what he is saying, and the video is as clear as muddy water.

DA

that a pressure gauge not a vacuum gauge duhhh