Thank you for this so well put video. I remember being told by my auto repair instructor many years ago: "if you suspect the compressor is not working right, just replace it with a brand new one" by you sharing this video , now I can see the inside of the a/c compressor. Thanks again.
I have been an auto mechanic for 14 years and never actually new the internal movements of an A.C. compressor. It is not at all what I imagined. Thank you for your video. You learn more and more each day. I still don't understand why some manufactures think that this small chunk of aluminum and steel is worth 600+ bucks.
I know this is years after you asked, but it's because of the tight tolerances you need on the internal components. Machining is much more expensive when variation is measured in microns.
Great video , I just realized I was the last person to comment on your video. But if you don't this type of AC work on a frequent basis, you sometimes forget the fundamentals. So this was a great review !! Thanks so much !!
So I'm going through our automotive A/C class at a tech school and we're told right away that we will not be taking apart any compressors in the field because they will always be replaced straight away. Fair enough. But then they say that for this very reason we will not even have a display compressor for you to take apart, so this video you made is the very first time I ever saw a compressor being taken apart, so thank you very much.
Jgizzy -redacted- Yeah, only Mexico gets to see inside. I'm not surprised but you would think, especially with the cost of some of these, they would have people learn to rebuild them. They could make a rebuild kit for most of them for $25-50 and it would take 30-60 minutes to rebuild one. Thanks for watching.
I hope your not paying too much for this class, this is the problem with many of these schools today, some ass-hat decides you don't need to know some fundamental stuff.
Thanks for taking it all the way apart. If you only want to replace the electromagnetic clutch, for example, and foolishly remove the bottom-most snap ring that secures shaft seal in place, exciting things become possible. I did it and didn’t firmly seat the snap ring all the way around. They can be hard to get in and out, especially the large snap ring that secures the magnetic clutch ring in place. What I found was that after putting in about a full can of refrigerant and forcing the compressor on, something had to give; what gave was that snap ring holding the shaft seal in place and when it exploded, it sounded like a bomb. Refrigerant, Green Dye and PAG oil covered about half of the engine compartment, and I felt sure the engine would go next, but all was quiet after that. It took me a month to look at it again, and I took the compressor half way apart, found the problem, fixed the seal and snap ring and put it all back together. I’ll recharge it any day now, just you wait and see.
Unbelievable, I have so much more respect for these things now. Never would have imagined they were recips. I was expecting a centrifugal compressor. Thanks for the excellent video!
The front plate(clutch plate) is directly connected to the center compressor shaft with a key way and bolt. The serpentine pulley actually has the bearing and is free spinning.
Thanks for showing us what's inside a car compressor. I was wondering how the rotary motion of the AC pulley is mechanically connected to the pistons needed to compress the refrigerant, and your video showed it clearly.
I opened a denso compressor and the pistons come slightly out of the cylinders and are hitting the plate causing a rattling sound. Also the pistons barely move down the cylinders before coming back up very strange how can they compress if they barely go down the cylinders?
I think it would stall as a water pump. The refrigerant in the compressor is a gas and I know if you are recharging it to fast you can "slug" the compressor and damage it. Very neat to see the mechanical principles going on inside.
Guess each auto manufacturer does their a/c compressor differently. I took apart the burnt up one from my old 93 Grand Voyager, and it had 5 pistons, and three metal plates on each end (one of them was really thick).
You should be able to physically see your clutch engage and spin. I'm wondering if it is slipping. The belt should have a spring tension pulley so it is virtually impossible to over-tighten. I would also make sure your electric fan is kicking on when your AC kicks on(Should be able to see and hear it).
yep! im gonna echo what everyone else has said. ive never had the opportunity to see in one before. no idea how they worked. now i have a bit more understanding. thanks for taking the time to show us.
Yeah, if r134a is leaking out then oil is as well. You can buy an inline oiler that you pour oil into then hook it up between the can and the fill port. Or you can add part of a can of pressurized oil. Or they sell cans of r134a with oil mixed in. The backyard way is to just pour some oil down the hose you are connecting to the can and fill port. It will push the oil in with the r134a.
Ok-Your help greatly appreciated.It's amazing how someone told the guy his bearings are bad in the compressor!When I bought my car it had two new belts on it that is why I was not leaning towards a belt at the time.It started to make the noise not long after I go it.It does make the noise without air on and gets worse when the car is put in gear which would make sense since the belt is under heavier load.Does the glazing of the pulleys of what you said is the Belt spray need to be addressed?
excellent video, well explained and detailed. Ive a 2002 altima, compressor clutch stopped engaging, plus I can hear the bearing noise. Ill have it replaced, then Ill disassemble...using the knowledge learned here. Thank you.
At 3:58 you can see the front housing bearing real good and if you look in the background at 4:20 you can see the bearing in the rear housing. This allows the center shaft to spin and it directly connected to the front clutch plate.
When the bearing is going out it will make a constant rumble/grinding sound. You can hear it better if you remove the belt and spin the AC clutch pulley by hand. I would think the rust colored stuff on your belt is spray belt rejuvenation. When you get a screeching belt you can go buy a $3 can of belt anti slip/rejuvenation. It lasts for a couple weeks but the belt will start squealing again. I'm sure this is what someone did. Fine sand paper will remove it from the pulleys.
thanks-I do appreciate all your feedback.I did know that.It is my daughters car.Not sure if she had it on the defrost setting when she said that.I do know I have a alt. starting to go.Ripple is high on it an lights dimming and blower fluctuating, so I have to tackle that job also.those look to be a pain to pull!
Good video, but does the front plate have a bushing or some typr of roller bearing where the shaft comes out?You did not show that to close or mention it.thanks
Really Cool Video, and I finally have a much better appreciation of what is going on inside the compressor. But I also have a question for you...if one is adding a can or two of R134a every couple of years to replenish what has leaked out of the system, do you think also a substantial amount of oil has also leaked out with it?. And if so, is their any way you would recommend to add back a couple of ounces of new PAG oil back into the system to help protect the needed lubrication?
This really helped me understand what's going on inside, it's very similar in construction to an aircraft hydraulic pump with its pistons and swash plate. Thanks, Bill.
Awesome video, I drive a 2005 Nissan Altima 2.5L, I have a rough idle when the car is in drive but at a stop light. I believe I've narrowed it down. The low suction line on the AC has been leaking for a while, I'm going to replace it and ad AC oil and refrigerant. Having said that I was also thinking that I may replace the AC clutch pully bearing. In your experience would it benefit a tare down like in this video and clean it out with brake fluid?
Do you think it would be possible to connect a 12-Volt motor by accurately machining an opening in the back of the compressor housing and machining the compressor shaft to accept the motor shaft? A high pressure seal I'm guessing, also.
thanks-We bought this car two years ago and the belts were brand new on the car.Shortley after owning it is when the screeching noise started.One thing I did notice is that the crank pulley, A/C pulley were coated/impregnated it seems in a rust colored dust.The belt is also impregnated with this.The clutch assy.had this coated on it and I had cleaned this off.I tried to clean it off the pulleys but it would not come off the pulleys.Any way I could clean it off the pulleys and belt?
The AC compressor turns on with the Defrost setting to cycle the refrigerant during the cold months. This keeps everything lubricated in the compressor.
Lightly sanding the pulleys with 120 or higher grit will remove glazing and contaminants from pulleys. Once a belt is glazed over from slipping it is junk.
Ther was alot of dust on the clutch.That is what I thought it was.The bearing does not runble at all,feels smooth.Could it be the internal bearings on the compressor?Not sue if they would schreech and Squeell?
Is it normal that you can only spin the compressor shaft by hand a few revolutions before it feels locked up? Could it be because it has built up compression
Ok- got it.Just trying to figure out my problem.03 Mazda protege.Air is cold and compressor works fine.Have this on again off again screeching noise when the car is started and getslouder when put in gear.Turning on air or even heat makes it louder.Ruled out the alt. and it's belt.Tightenening the A/C and pwr steering belt seems to help quiet it.Do not think it is the pwr steering pump.Comp. pulley vbearing feels ok, but I am suspecting it is making the noise since it turns all the time.
I installed a new AC compressor for my vehicle. During the servicing phase, the high was up and low was trying to operate a little. Anyway it started squeaking bad. During the service face , I jumped the compressor with thr high side, as mentioned in the beginning (maybe 15 minutes). Do you think bearing might be bad, and the compressor section is fine. Just curious. I have a new one but if the bearing is bad , I can repair and install on other car. This compressor had 4.0 ounces of oil before operation. Sorry about the long message, I just enjoy fixing cars. GOD BLESS
So quick question you mentioned another snap ring down at 1 minute and 35 seconds into the video that right before you start to remove the external bolts. Exactly what internal seal are you referring to? And is there a name for that particular seal and because the compressor actually houses a magnet that creates the charge.. is it a magnetic seal that you are referring to?
My wife and I just watched! Loved it. Why would I need to take my compressor apart? Also if I had to take it apart would I use the hammer to separate the parts?
Thanks for all your fedback.I think I can rule out the internal bearings .Just wondering if you don't mind watching a video here on the Tube.It is called Mazda 626 A/C compressor bearing noise I believe.See what you think it is.The sound this car makes is identical to my Mazda.Guy thinks it is bearings and someone told him to put oil in the compressor.I think he's wrong
Maybe that is why tis problem is intermittent and hard to track down, since the belts were new when I got the car.Maybe a combination of the pulley's and belt.Whats weird is the other night when driving down the road and the heat was turned on it started to screech.Not sure why turning the heat on causes this?
It just won't cool or it will cool poorly. It really shouldn't damage anything. AC relies on High pressure gas transitioning to Low pressure to supply cooling. By adding to much it makes the entire system high pressure.
pretty interesting! looks like it would easier and cheaper to rebuild than being gouged by the mechanics shops or parts houses if the replacement kits were readily available!
Helo sir , I am very influenced with your video and get some inspiration to do work and I need some help of your want to kw from where I can buy internal parts of ac compressor please do revert as soon as possible thanks
OK Cool....I am mechanical and about 85 percent sure I might get that thing back together but just how much of a compressor can I get parts for at my local part store? Are there kits available to the public to rebuild these or what? Me and a friend tried dumping some cans of 134 into my daughters car. The refrigarant went somewhere and there is power to the compressor but its not cycling. Clutch part is my guess. Thanks
I have taken apart a V7 Delphi Compressor. I bought a replacement Gasket Repair Kit Kt-GMV7N. This Kit has 5 smaller O rings. I'm sure 4 of these go on the Control valve but I can't find where the other O ring is to be used! Also, The shaft needle bearing-SCH 1010, behind the shaft seal needs to be replaced! Can you tell me where I can buy this bearing?
could you please tell me where is the oil inlet in ac compressor ........and 1 more question is ..is oil combine with gas and cycle through it or what ............
Also, I found acouple videos on here that show acouple Mazdas making exact noise mine is and the owners swear it is the compressor bearings.Either the pulley bearing or bearings inside compressor,but I'm not convinced yet.
Any chance you remember what car that compressor was off of? I have a modified c4500 and need that exact clutch cover but can't find a part number for the compressor or clutch... Thanks for the video!
I'm curious if the compressor oil and refrigerant are both pumped through the entire system or not. I know they sell refrigerant bottles that have oil mixed in so that leads to me think they do? If not how does the oil stay in the compressor when filled using those mixed bottles?
My compressor makes noise only when it's disengaged but engaged it's quiet. Think it might be the bearings and I can get away with replacing them only?
That would be your clutch bearings on the front and they are commonly replaced. Here is a video where I do just the clutch bearings: th-cam.com/video/Z_9yaMfsgbQ/w-d-xo.html
It moves through the system because there's no oil sump and as such it has to dissolve in the refrigerant (never use PAO oil with R-134A systems, it's not refrigerant soluble and if the compressor pushes it out it won't return), although some compressor body shells are designed so that most of the oil charge stays inside the compressor even during operation, much like with a sump equipped one, and there are a lot of additives around which claim to remove the oil layer from the heat exchanger (evaporator+condenser) walls and send this oil to the compressor. The oil charge+refrigerant bottles are meant to replenish little amounts of oil lost through refrigerant leaks, but fixing leaks and having the charge done through a station is much better than dealing with this kind of stuff. Anyway it's charged in the suction line with the compressor on and it gets sucked inside the compressor along with the refrigerant which acts as a solvent (while the best way of doing it is in the high pressure side with the compressor off and into a vacuum).
What happens when the pistons wear down? Are there honing tools and replacement pistons? Or at that point does the compressor just get tossed and replaced?
Nice video man! I have a question too. My car idles at 950rpm when the AC is on ,if i increases the rpm to like 2000-2500 will it cool faster ? Does the compressor's piston movement increases with the increasing rpms?
It would flow more refrigerant, but if your car is sitting still you won't get more cooling. This is because the condenser won't have enough air running across it.
Hi ، good video, Is there any solenoid or sensor , inside the compressor, or any electrical component, other than the magnetic clutch. Generally , do compressors, differ one from another. Thanks
I have leak from my ac compressor caprice 96 I think from rubber seals I tried epoxy to stop leak I put epoxy all around this seal and it failed to stop leak I think because high pressure can I weld it with 4043 aluminum with my arc welding from outside all around seals ?
Hi there let me ask you a question I just got my ac compressor replaced on my altima 2007 but it doesn't cool like the factory one I got it from autozone and suprasinly it was the same brand as the factory one ,valeo by the way ,any advice please thanks.
Thank you for this so well put video. I remember being told by my auto repair instructor many years ago: "if you suspect the compressor is not working right, just replace it with a brand new one"
by you sharing this video , now I can see the inside of the a/c compressor. Thanks again.
I have been an auto mechanic for 14 years and never actually new the internal movements of an A.C. compressor. It is not at all what I imagined. Thank you for your video. You learn more and more each day. I still don't understand why some manufactures think that this small chunk of aluminum and steel is worth 600+ bucks.
Cost about 230 on amazon
and all i need is a $5 seal
$1790+gst from Nissan AU for one for my patrol.
300 and something for my 03 avalanche at AutoZone. I'm sure at the dealer it will be more then 300
I know this is years after you asked, but it's because of the tight tolerances you need on the internal components. Machining is much more expensive when variation is measured in microns.
Excellent video. No long introduction, clear and simple explaination and teaches more than any text book could!
Great work my friend!
Thanks.
Great video , I just realized I was the last person to comment on your video. But if you don't this type of AC work on a frequent basis, you sometimes forget the fundamentals. So this was a great review !! Thanks so much !!
So I'm going through our automotive A/C class at a tech school and we're told right away that we will not be taking apart any compressors in the field because they will always be replaced straight away. Fair enough. But then they say that for this very reason we will not even have a display compressor for you to take apart, so this video you made is the very first time I ever saw a compressor being taken apart, so thank you very much.
Jgizzy -redacted- Yeah, only Mexico gets to see inside. I'm not surprised but you would think, especially with the cost of some of these, they would have people learn to rebuild them. They could make a rebuild kit for most of them for $25-50 and it would take 30-60 minutes to rebuild one. Thanks for watching.
I hope your not paying too much for this class, this is the problem with many of these schools today, some ass-hat decides you don't need to know some fundamental stuff.
I work at a dealer and now a days we replace the whole thing. But i would like to rebuild thing to Not just replace them.
@GROMEXCR22 especially OEM Original
Parts, best quality...
@sixtyfiveford
great line very true,
Only Mexico gets to look inside..............
Thanks for taking it all the way apart. If you only want to replace the electromagnetic clutch, for example, and foolishly remove the bottom-most snap ring that secures shaft seal in place, exciting things become possible. I did it and didn’t firmly seat the snap ring all the way around. They can be hard to get in and out, especially the large snap ring that secures the magnetic clutch ring in place. What I found was that after putting in about a full can of refrigerant and forcing the compressor on, something had to give; what gave was that snap ring holding the shaft seal in place and when it exploded, it sounded like a bomb. Refrigerant, Green Dye and PAG oil covered about half of the engine compartment, and I felt sure the engine would go next, but all was quiet after that. It took me a month to look at it again, and I took the compressor half way apart, found the problem, fixed the seal and snap ring and put it all back together. I’ll recharge it any day now, just you wait and see.
That makes for some excitement.
Unbelievable, I have so much more respect for these things now. Never would have imagined they were recips. I was expecting a centrifugal compressor. Thanks for the excellent video!
The front plate(clutch plate) is directly connected to the center compressor shaft with a key way and bolt. The serpentine pulley actually has the bearing and is free spinning.
What a quick breakdown lesson on a compressor that was beautiful thank you.
Thanks for showing us what's inside a car compressor. I was wondering how the rotary motion of the AC pulley is mechanically connected to the pistons needed to compress the refrigerant, and your video showed it clearly.
Thanks for watching.
That is so cool! I will never look at the AC pump as a hunk of metal again as it is quite interesting the way it is engineered!
Dan Targa Thanks for watching. It's always fun taking them apart.
I opened a denso compressor and the pistons come slightly out of the cylinders and are hitting the plate causing a rattling sound. Also the pistons barely move down the cylinders before coming back up very strange how can they compress if they barely go down the cylinders?
Of the 4 years i've done mechanic work on the side, i've never actually took an ac compressor apart, only read books/diagrams. Really cool!
I think it would stall as a water pump. The refrigerant in the compressor is a gas and I know if you are recharging it to fast you can "slug" the compressor and damage it. Very neat to see the mechanical principles going on inside.
Always been curios how the compressor worked. Ingenious system to move pistons. Thanks.
Guess each auto manufacturer does their a/c compressor differently.
I took apart the burnt up one from my old 93 Grand Voyager, and it had 5 pistons, and three metal plates on each end (one of them was really thick).
You should be able to physically see your clutch engage and spin. I'm wondering if it is slipping. The belt should have a spring tension pulley so it is virtually impossible to over-tighten. I would also make sure your electric fan is kicking on when your AC kicks on(Should be able to see and hear it).
yep! im gonna echo what everyone else has said. ive never had the opportunity to see in one before. no idea how they worked. now i have a bit more understanding. thanks for taking the time to show us.
Yeah, if r134a is leaking out then oil is as well. You can buy an inline oiler that you pour oil into then hook it up between the can and the fill port. Or you can add part of a can of pressurized oil. Or they sell cans of r134a with oil mixed in.
The backyard way is to just pour some oil down the hose you are connecting to the can and fill port. It will push the oil in with the r134a.
Ok-Your help greatly appreciated.It's amazing how someone told the guy his bearings are bad in the compressor!When I bought my car it had two new belts on it that is why I was not leaning towards a belt at the time.It started to make the noise not long after I go it.It does make the noise without air on and gets worse when the car is put in gear which would make sense since the belt is under heavier load.Does the glazing of the pulleys of what you said is the Belt spray need to be addressed?
excellent video, well explained and detailed. Ive a 2002 altima, compressor clutch stopped engaging, plus I can hear the bearing noise. Ill have it replaced, then Ill disassemble...using the knowledge learned here. Thank you.
At 3:58 you can see the front housing bearing real good and if you look in the background at 4:20 you can see the bearing in the rear housing. This allows the center shaft to spin and it directly connected to the front clutch plate.
Came to see how the electromagnet came apart. Stayed for the whole thing - those insides are fascinating!
Thanks
What a nice design, i wondered how the pistons were driven.
A very compact unit.
Smashing tear down and explanation, thanks :-)
When the bearing is going out it will make a constant rumble/grinding sound. You can hear it better if you remove the belt and spin the AC clutch pulley by hand.
I would think the rust colored stuff on your belt is spray belt rejuvenation. When you get a screeching belt you can go buy a $3 can of belt anti slip/rejuvenation. It lasts for a couple weeks but the belt will start squealing again. I'm sure this is what someone did. Fine sand paper will remove it from the pulleys.
thanks-I do appreciate all your feedback.I did know that.It is my daughters car.Not sure if she had it on the defrost setting when she said that.I do know I have a alt. starting to go.Ripple is high on it an lights dimming and blower fluctuating, so I have to tackle that job also.those look to be a pain to pull!
Good video, but does the front plate have a bushing or some typr of roller bearing where the shaft comes out?You did not show that to close or mention it.thanks
Really Cool Video, and I finally have a much better appreciation of what is going on inside the compressor. But I also have a question for you...if one is adding a can or two of R134a every couple of years to replenish what has leaked out of the system, do you think also a substantial amount of oil has also leaked out with it?. And if so, is their any way you would recommend to add back a couple of ounces of new PAG oil back into the system to help protect the needed lubrication?
thank you. Seeing inside the AC makes a lot more sense now.
Do you hear it under the dash, inside the car or under the hood? Does it make the same sound with the heat on? What about with the defrost setting on?
awesome video,thanks for taking the time to show us what's inside a compressor
Yeah, thanks for watching.
This really helped me understand what's going on inside, it's very similar in construction to an aircraft hydraulic pump with its pistons and swash plate. Thanks, Bill.
Thanks for watching.
Awesome video, I drive a 2005 Nissan Altima 2.5L, I have a rough idle when the car is in drive but at a stop light. I believe I've narrowed it down. The low suction line on the AC has been leaking for a while, I'm going to replace it and ad AC oil and refrigerant. Having said that I was also thinking that I may replace the AC clutch pully bearing. In your experience would it benefit a tare down like in this video and clean it out with brake fluid?
The oil is combined with the refrigerant and cycled through the entire system.
Internal bearings going out is very rare and the would only rumble really quietly.
great video got to know first time what is inside of a ac compressor
thanks man
Thanks.
Thanks for the video. Always wanted to know what the in the inside of the AC compressor
`
Yeah. Glad you liked the video.
hi thanks for showing i wonder what was wrong with the compressor because the parts all looks clean
all the best for you and family
Really informative video! Never seen the inside of the compressor. Great job!
Thanks.
Also, when the pistons are pushing up and down, is that compressing the gaseous form of the refrigerant, and changing it into a liquid form?
Do you think it would be possible to connect a 12-Volt motor by accurately machining an opening in the back of the compressor housing and machining the compressor shaft to accept the motor shaft? A high pressure seal I'm guessing, also.
thanks-We bought this car two years ago and the belts were brand new on the car.Shortley after owning it is when the screeching noise started.One thing I did notice is that the crank pulley, A/C pulley were coated/impregnated it seems in a rust colored dust.The belt is also impregnated with this.The clutch assy.had this coated on it and I had cleaned this off.I tried to clean it off the pulleys but it would not come off the pulleys.Any way I could clean it off the pulleys and belt?
It is most likely your front bearing or belt slipping. There are pictures on google images of GM R4 compressors ripped apart.
I love the Swash plate movement.. It's the same movement as the Duke Engine. A pure sinusoidal motion, Much better than a crankshaft..
It's very neat to watch in action.
The AC compressor turns on with the Defrost setting to cycle the refrigerant during the cold months. This keeps everything lubricated in the compressor.
Lightly sanding the pulleys with 120 or higher grit will remove glazing and contaminants from pulleys. Once a belt is glazed over from slipping it is junk.
Great vid of disassembly. While pulling off the pulley, I broke off the snap ring groove, can I replace the part the bearing rides on?
Parts are not easy too find for most of these compressors
Thanks for that,was inquisitive to see inside of aircon,compressor.
You bet
Ther was alot of dust on the clutch.That is what I thought it was.The bearing does not runble at all,feels smooth.Could it be the internal bearings on the compressor?Not sue if they would schreech and Squeell?
Cool video! I've never had a chance to take one of these apart. It's cool to see how they work.
It takes energy from the engine itself. The compressor is compressing the refrigerant in the form of gas.
Amazing video. You are my today's hero. Thank you. I learnt something today. God Bless always.
Awesome. Thanks.
Is it normal that you can only spin the compressor shaft by hand a few revolutions before it feels locked up? Could it be because it has built up compression
Ok- got it.Just trying to figure out my problem.03 Mazda protege.Air is cold and compressor works fine.Have this on again off again screeching noise when the car is started and getslouder when put in gear.Turning on air or even heat makes it louder.Ruled out the alt. and it's belt.Tightenening the A/C and pwr steering belt seems to help quiet it.Do not think it is the pwr steering pump.Comp. pulley vbearing feels ok, but I am suspecting it is making the noise since it turns all the time.
Oh wow! You have the Finish 2000 car polish!I remember those it works great!
That stuff has been on the shelf for a long time.
I installed a new AC compressor for my vehicle. During the servicing phase, the high was up and low was trying to operate a little. Anyway it started squeaking bad. During the service face , I jumped the compressor with thr high side, as mentioned in the beginning (maybe 15 minutes). Do you think bearing might be bad, and the compressor section is fine. Just curious. I have a new one but if the bearing is bad , I can repair and install on other car. This compressor had 4.0 ounces of oil before operation. Sorry about the long message, I just enjoy fixing cars. GOD BLESS
Screeching is almost always the belt. Either it is glazed over and or loose.
I see in the video there are splines interally.The splines must rotate on a bearing so the shaft can rotate?
Nice video, many thanks. Did compressor have only 1 bearing in clutch? I see only bushing in back.
Really cool. Wonder if I could convert it as a water pump to wash my car on the go?
Nice tear down video. So what goes bad in a compressor of this design and what gets replaced in a refurb compressor?
The clearance between the pistons and the bore it's larger and it can't compress as well. Sometimes the reed valves also break.
Greeting from the UK. Very interesting. Thanks for making this video.
Thanks Mate.
So quick question you mentioned another snap ring down at 1 minute and 35 seconds into the video that right before you start to remove the external bolts. Exactly what internal seal are you referring to? And is there a name for that particular seal and because the compressor actually houses a magnet that creates the charge.. is it a magnetic seal that you are referring to?
There is a bearing and seal that support/seal the main center shaft that spins. It's not magnetic. At 3:00 you can see the main center shaft.
My wife and I just watched! Loved it. Why would I need to take my compressor apart? Also if I had to take it apart would I use the hammer to separate the parts?
Thanks for all your fedback.I think I can rule out the internal bearings .Just wondering if you don't mind watching a video here on the Tube.It is called Mazda 626 A/C compressor bearing noise I believe.See what you think it is.The sound this car makes is identical to my Mazda.Guy thinks it is bearings and someone told him to put oil in the compressor.I think he's wrong
So does the compressor take power from the engine/combustion energy or from the electrical energy from the battery in order to operate it?
Maybe that is why tis problem is intermittent and hard to track down, since the belts were new when I got the car.Maybe a combination of the pulley's and belt.Whats weird is the other night when driving down the road and the heat was turned on it started to screech.Not sure why turning the heat on causes this?
It just won't cool or it will cool poorly. It really shouldn't damage anything. AC relies on High pressure gas transitioning to Low pressure to supply cooling. By adding to much it makes the entire system high pressure.
You would take it apart to repair it. Yes, light taps with a hammer is easiest way to separate the halves.
Good video. Interesting. I never knew how it worked before watching this. Thanks!
stanthology Thank you.
pretty interesting! looks like it would easier and cheaper to rebuild than being gouged by the mechanics shops or parts houses if the replacement kits were readily available!
There's not a lot it would take to rebuild these.
Helo sir ,
I am very influenced with your video and get some inspiration to do work and I need some help of your want to kw from where I can buy internal parts of ac compressor please do revert as soon as possible thanks
Thank you for the video I had no idea they look easy to rebuild
OK Cool....I am mechanical and about 85 percent sure I might get that thing back together but just how much of a compressor can I get parts for at my local part store? Are there kits available to the public to rebuild these or what? Me and a friend tried dumping some cans of 134 into my daughters car. The refrigarant went somewhere and there is power to the compressor but its not cycling. Clutch part is my guess. Thanks
This was a great video, got to know inside of AC Compressor as mine is giving me issues.
Thanks, I'm glad you enjoyed it.
Informative, Thanks. Can you replace the clutch ? Can you buy it seperatly,
Very interesting! I didn't know compressors were that simple. Pistons... hmmm...
I have taken apart a V7 Delphi Compressor. I bought a replacement Gasket Repair Kit Kt-GMV7N. This Kit has 5 smaller O rings. I'm sure 4 of these go on the Control valve but I can't find where the other O ring is to be used!
Also, The shaft needle bearing-SCH 1010, behind the shaft seal needs to be replaced! Can you tell me where I can buy this bearing?
+Albert Spahn This guy has a great video on the v7 delphi th-cam.com/video/7lmZnBtj1LE/w-d-xo.html
could you please tell me where is the oil inlet in ac compressor ........and 1 more question is ..is oil combine with gas and cycle through it or what ............
The thrust bearings inside would be ideal for use with suspension bush extractor tools. I'm off to rescue a compressor from the junk pile!
Also, I found acouple videos on here that show acouple Mazdas making exact noise mine is and the owners swear it is the compressor bearings.Either the pulley bearing or bearings inside compressor,but I'm not convinced yet.
Great video. what are the other 2 types of compressors used in cars?
There are actually 5 types used; Piston, Scroll, Wobble plate, Variable stroke and Vane
thanks lot u r video is very helpful for technicians...
what goes wrong? Reed valve plate or gasket? (barring foreign debris bore damage)
Any chance you remember what car that compressor was off of? I have a modified c4500 and need that exact clutch cover but can't find a part number for the compressor or clutch... Thanks for the video!
It is a Seltec 488-45121 TM15HD.
Great post! I learned something about a compressor and how it works!
Thanks for watching.
Thanks, been wondering how those work for a while
Thanks for watching.
I'm curious if the compressor oil and refrigerant are both pumped through the entire system or not.
I know they sell refrigerant bottles that have oil mixed in so that leads to me think they do? If not how does the oil stay in the compressor when filled using those mixed bottles?
The oil settles out into various parts of the system. It gets pushed around only through a light mist.
My compressor makes noise only when it's disengaged but engaged it's quiet. Think it might be the bearings and I can get away with replacing them only?
That would be your clutch bearings on the front and they are commonly replaced. Here is a video where I do just the clutch bearings: th-cam.com/video/Z_9yaMfsgbQ/w-d-xo.html
It moves through the system because there's no oil sump and as such it has to dissolve in the refrigerant (never use PAO oil with R-134A systems, it's not refrigerant soluble and if the compressor pushes it out it won't return), although some compressor body shells are designed so that most of the oil charge stays inside the compressor even during operation, much like with a sump equipped one, and there are a lot of additives around which claim to remove the oil layer from the heat exchanger (evaporator+condenser) walls and send this oil to the compressor. The oil charge+refrigerant bottles are meant to replenish little amounts of oil lost through refrigerant leaks, but fixing leaks and having the charge done through a station is much better than dealing with this kind of stuff. Anyway it's charged in the suction line with the compressor on and it gets sucked inside the compressor along with the refrigerant which acts as a solvent (while the best way of doing it is in the high pressure side with the compressor off and into a vacuum).
nice, never took one apart before,,
So the shaft does not ride on any bearings internally?
What happens when the pistons wear down? Are there honing tools and replacement pistons? Or at that point does the compressor just get tossed and replaced?
+liamvg No one will sell you parts. They are shipped off to Mexico or China and rebuild there(cores)
Nice video man! I have a question too. My car idles at 950rpm when the AC is on ,if i increases the rpm to like 2000-2500 will it cool faster ? Does the compressor's piston movement increases with the increasing rpms?
It would flow more refrigerant, but if your car is sitting still you won't get more cooling. This is because the condenser won't have enough air running across it.
yea.. yea still vehicle doesn't cools much! Thanks!
gotta get the heat out of the gas
basic principle
Hi ، good video, Is there any solenoid or sensor , inside the compressor, or any electrical component, other than the magnetic clutch. Generally , do compressors, differ one from another. Thanks
The AC compressor requires a lot of force to turn it. It puts a load on the engine so the engine has to use more gas to run.
I have leak from my ac compressor caprice 96 I think from rubber seals I tried epoxy to stop leak I put epoxy all around this seal and it failed to stop leak I think because high pressure can I weld it with 4043 aluminum with my arc welding from outside all around seals ?
great video brother I appreciate the quality video and camera work I dont even have an acura but I enjoyed the info
Great video. Thanks for showing how one works.
Thanks.. Glad you enjoyed it.
I would like to see how the compressor is rebuilt to work again . The compressor of my 2014 KIA Cerato is bad
th-cam.com/video/aMP_E8NPED4/w-d-xo.html th-cam.com/video/rulXlnG2Unk/w-d-xo.html th-cam.com/video/Pdq8JAlct6s/w-d-xo.html Hope this helps....
Do this vid 1st...th-cam.com/video/rK17sw3Vl_U/w-d-xo.html
@@ToyManFlyer1100 Thanks MAN. I bought a new compressor.
Hi there let me ask you a question I just got my ac compressor replaced on my altima 2007 but it doesn't cool like the factory one I got it from autozone and suprasinly it was the same brand as the factory one ,valeo by the way ,any advice please thanks.
I would think your r134a charge is off or air in the system.
A lot simpler than I thought it would be.