Can I say that the motor pulley look's pretty large for the air compressor ..I know these compressor's like to spin at a set RPM range but you can accomplish this with the correct diameter pulley and unless I'm wrong that one looks large so the air compressor RPM speed might be low...
Hey Mustie, I have to say thank you!! You have inspired me to get old junk up and running like new again. So far I have resurrected a 2002 XR80R, a 1973 ATC70 and I am working on 2 Yamaha Maxims (1980 and 1981)... And this is just in the last few months. I have always loved tinkering but now I am making something good out of it all.
Given the oil leak, I'd say seized bearing which chewed out the bearing seat, leaving a rattle. I would have been curious to know if it still has compression.
The ten year old boy in me just burst into a fit of giggles when you turned the compressor by hand and it farted and groaned. Most I have laughed in a month. Thanks Darren. Great video too well done.
I think it would be cool to see a strip down of the other compressor head. Even to see the effects of low oil due to lack of maintenance, would confirm he importance of proper use/care to be taken with compressors. 👍
Nice video. I think its exellent that you'll delve into such a variety of different projects. One day a trail 70, the next a piston air compressor. Truly a man after my own heart. Keep up the good work.
Looks like a 3450 RPM motor. Wonder if the replacement compressor is intended to run at 1740 RPM. Regardless, you should go much smaller on the motor pulley and slow it down to make it last.....
The first thing I thought of when I saw that huge pulley on the motor was "He better change that out so it doesn't trash that older compressor."😮 Sounds much better with the smaller pulley. If that motor is turning 3600, your compressor is probably around 17-1800 now (which is still a little fast, but not too dramatic). It should survive as long as you use a good synthetic air compressor oil that isn't affected by heat. You ought to drill a couple pieces of 1 1/2" x 1/8" strap steel and weld 2 pieces of 3/8" all-thread to them and weld a piece of 1" angle iron, the width of the motor/compressor mounting plate, to the motor end and drill it for the all-thread. This will allow you to adjust the belt tension without fighting with screwdrivers and such through the mounting slots. I hate that they don't put some sort of adjusting apparatus on those cheap compressors from the factory. Ingersoll-Rand, Craftsman, DeVilbiss, etc. all come from the same factory in China or Taiwan now and they just slap the appropriate decals on them.😜 Overall, it ought run fairly trouble-free for a few years at least. Hopefully that motor isn't partially cooked inside where you can't see it. Time will tell...
Hi, Here in the Netherlands it was already 2 in the afternoon (assuming we are 6hrs ahead) A new mustie1 video still is a welcome supprise though. Following your videos for over a year now, thanks for all your effords and the entertainment it brought me. much appreciated. Ohhh and by the way ..... I also would like to see the old compressor getting "analised" . Cheers Hans
Great video. I've been all over YT and can honetly say yours has a ton of important information in one place that took a lot of videos amd time for me to gather and entertaining to boot. Thank you very much!! I recently picked up a Speedaire 5 horse 80 gallon compressor really cheap! It looked to be in good shape other than being stored outside for a few months after moving from their shop. I got it home and after a helluva time getting it off my truck solo (do not reccomend) I learned it was a 3 phase motor -whoops. So I turned to Amazon and 5hp single PH. That's where I learned about the importance of pulley sizing and some about wiring, plumbing, NPT/flare/compression etc, offloader tubes, one way check valves, cut on/off windows, Pump PSI specs,etc. Fired up and the Pump had Rod Knock from hell, so Harbor Freight for a single stage 2 piston 5HP 150 PSI pump. Im about to fire it up literally minutes away but a previous obligation is in the way so I have to wait just a little but longer. Thank you for the video had I found it sooner I'd be done by now haha
I will just about guarantee some folks will think that if they double the size of the pulley that would make it 1700 RPM then it would fill the tank twice as fast. LOL
looks to me like they changed the motor pulley to get more CFM, I figure that's what screwed the rod in the head, the wires got burnt because of the extra load when starting.
That's the largest shiv I have ever seen on the motor of a compressor, smaller pulleys would lower power consumption and greatly increase longevity of all components.
Darrin should have heard me yelling at the computer screen that the RPM was way too fast. Read the plate on the motor to see how fast it spins. A compressors best speed will be well less than 1000rpm to give the air enough time to get into the cylinder or he is only compressing a small amount each stroke. I call it false economy. I run mine at 750 and it does just fine with a small motor with a 2½" pulley.
The motor pulley is not the Chinese original. That one is too large in diameter. Explains why original compressor blew oil and tore up. Also explains the burnt push-on lugs. The motor was drawing excessive current from being overloaded.
I've been going watching your channel. You remind me of my grandfather, in a good way. 😬 You're an old school mechanic. Your troubleshooting technique is something everyone can learn from. Thank you for sharing.
"Oil was too clean to see..." Try this: Wipe down the dip stick, then reinsert it to get the oil level on the stick. Pull the stick out and lay it sideways against a paper towel. The oil will mark the towel and it'll be 100% readable. Sometimes really old oil in an old engine looks really clean because the junk has settled out over years of storage.
Hi Mustie another great video as always. You've been a great inspiration for me to get back to work on the projects I've neglected due to depression and other personal issues. Anyway yes I'd like to see you disassemble the other compressor. Kind regards Paul Rawcliffe from Perth Western Australia 🇦🇺.
Thanks for the reminder to drain the condensation...I haven't done mine in a while. Been using it a lot lately. It's a tiny compressor but it fits the bill in my garage.
@@noidontthinksolol it's not only about compressor RPM it's looking at maximum current draw of the electric motor. You absolutely must not exceed FLA, ideally your be sitting around 90% because it's a cheap single phase motor. Most air compressor heads are rated for a range of horsepowers. That's tuned by the pulley ratio.
Nah, it'll be wired straight into the electrical box, (that's why it doesnt have a plug now, in the shop it came out of it was wired in a box) plugs are expensive and the compressor tank is likely going to be bolted in place not moved. The only time you need a plug is if its gonna be portable, trust me you don't wanna lug around one of these beast unless you have a forklift. Just remember safety 3rd 😄 when testing.
Mustie1, I appreciate you doing these videos on air compressors and the ones on generators too. I’m having problems with both of mine, and this gives Me new things to look for. Thanks for sharing your knowledge and videos sir
A postmortem is always interesting. Might even be interesting to see if it's repairable since it apparently hasn't thrown the rod yet; although the rod and crank are probably galled beyond reuse. Great video and repair!
I'm on the sparkie side of things and I was hoping you'd pull off the cables trim them and reterminate. I guess that isn't as exciting as the mechanical stuff!
The pressure switch should dump air every time it turns off and we don’t hear it hiss. Also if it still gets very hot try dropping the peak pressure by ten psi it will really help and also saves power.
Love the videos..that small copper tubing from the tank (check valve) to the pressure switch is to bleed off the pressure on the pump. to reduce the current draw back on start up and keep pressure off the pump head.
I saw that flash at 1:12 and thought "That's not good". But the connecters weren't real snug. Interesting video. I've learned so much from you. Yes, time to tear down!
About twenty years ago, I had to figure out why we were running out of air so quickly at our shop, twin compressors daisy chained together. One had a ball valve that worked great, the other had the peacock that was busted off, so this compressor was never completely drained over approx 10 years. Bottom line of the issue was a “tank full of pressurized water”( 80-100 gallons). When I removed the peacock, it shot out like a rocket, and we had a water jet running for about 10 minutes. ScAred the hell out of the office staff, and Lady the shop’s black lab. All of this was because the service company wanted to sell two new industrial compressors, but the boss said for me to go play. By the way, our regulators were set at 250 pounds pressure, for inflating tractor trailer tires and 1 1/2 inch impact guns. Whooosh!!!lol
Easy way to check the pulley alignment is to get a length of straight, threaded rod (say M6/M8 1/4" 3/8"). Lay it in the V of the bigger pulley on the point of balance. Then tap it until it falls towards and into the smaller V pulley. That will accurately allow you to adjust the alignment.
I vote for three things. 1) Measure the actual head temperature of this compressor. The running temperature can make a huge difference in its longevity. 2) A still smaller pulley on the motor on this compressor. It sounds like it is spinning a lot faster than most compressors I hear. 3) Don't leave curiosity hanging. Tear down the other compressor to see what the failure is. You will always wonder if you don't! Don't drive yourself crazy that way!
Mustie1 says "Hey guys, how's it going." my brain says "It's time to breathe and de-stress." I wonder if with everything that’s going on in the world, these better repair/restoration channels realise how many people’s sanity they are saving? I was late to the party so I have a great backlog to watch.
If you measure the circumference of the old pulleys and divide one by the other it'll give you a ratio you can use to find the correct sized motor pulley, but I think you got it just about right.
Goes to home Depo to buy a 90 degree copper elbow, doesn't purchase a power plug... steps on power lead pulling wires out... Hahaha, Just found the channel, Subbed and binge watching.. Now i feel like fixing my air compressor, engine, and having a look at our generators if we still have them. Great video mate.
Yes I too think that motor pulley is too big. A compressor head I had had a recommended top speed, it isn't hard to calculate the final speed based on the motor speed and pulley sizes.
exact, usualy, 1000RPM is the maximum allowed for a stationnary compressor, other important fact is that you should measure the consumption of the motor to be sure that it is not overloaded, usually, an electric motor can take a certain onerload for 20 minutes, it is called service factor amd usually, it is between 1.00 and 1.15
@@markg735 when a compressor is spinned too fast, it looses effeciency and it oped the door to high oil consumption because the intake ports are too small and an important vacuum inside the cylinder is created permitting oil seepage around the piston rings that are much heavier than in an engine
They are, but you can see in the video that the motor is indeed running counter-clockwise so it's already running the proper direction for that compressor pulley. Way too fast, but the proper direction.
If I didn't say it already, love your videos man. You should use a lot of caution though, with a used compressor, particularly the tank. You need to check them for water, and rust. I have seen older tanks explode, and that would really ruin your day, especially with one that large. Take care man.
Most compressors run about 900 - 1200 rpm. The older cast iron pumps ran slower to last longer and let their larger valves work better. I don't hear the unloader hiss when pressure switch shuts off. That will unload pressure in the 'svc loop above the check valve and allow the motor to start the pump without running against the tank pressure on the valves.
With a piston compressor head, direction only matters for cooling. Rotation is converted from a rotary motion, to a reciprocating motion by the crank. So, it's up and down for the piston no matter what direction you turn the crank. The reed valves will only allow the air to flow in one direction in any case. I have built a number of these compressors using piston type air conditioning compressors from vehicles. They are very powerful and work well as long as you regulate them (the electromagnetic clutch makes this really easy using just a standard compressor pressure switch), and you gotta keep oil in them. They do "puke" a little oil into the outlet so mount a separator inline and an air filter on the intake. Keep in mind, these are designed for R12 pressures, so use caution. Most of these I have mounted on vehicle engines, for mobile use, but I have build some stationary one too. Nice job man.
I vote to see the old pump torn down and I vote for a smaller motor pulley. Those old cast iron pumps were probably run by a 4-pole 1725rpm 1hp motor. I think it'll die an early death running that fast. But whatever you do, keep them videos coming!
I retired my bike shop and have a couple of hacks for you, every shop has its 'secret sauce' for cleaning carbs, I use Alconox it was developed to clean tatoo equipment, I get it on ebay a couple of tablespoons in the ultrasonic, leaves no residue. To put new rubbers, handlebar grips, intake manifolds just spray insides with carb cleaner slides on like fresh snot.
Swap wires 5 and 8 in the junction box. This looks like a pretty quality motor. It has thermal protection. Should not be a problem. I have worked on hundreds of compressors
Great video, as always. I agree with the other comments that the motor looks like it's a 3450 RPM and turning the pump too fast. That would explain why the other pump died. I've worked on a number of Quincy compressors, all of which had a maximum pump speed of 900 RPM. Look up the pump RPM specs, change the pulleys, and you have a keeper.
I worked for a company where I inspected buildings we had rented and I looked at a few empty ones that had compressors chugging away merrily. They are also used in the HVAC controls of large buildings.
Yes I love tearing things apart to see both why they failed and how they work. I work on air compressors so I already have an idea. But I would still like to see what torpedoed this head.
He said it looks like it had an out Oil leak and ran dry so how could a crank and rod cost not as much as a new compressor. Your in the business you have an idea. And can find him the head unit or part's.
Enjoyed this video ! I have a similar air compressor project to do . A craftsman air compressor with a motor ( data plate ) that reads Packard - a division of General Motors so it will be interesting to see if I can get it going . It was given to me by a friend . Her husband passed away a few years ago and it was sitting in her barn . It would sure be nice to have it done ! Enjoyed your video for sure .
Worked for a factory loading/mixing coffee beans for roasting, one of the loader's job responsibilities was dumping the water from the compressor. It's amazing how fast that bucket would fill up in the summer time. :)
Yes, please. Let's see the blown compressor; I was looking forward to that. Is the belt tension OK now? It runs smoothly for a while then starts flopping (better word?). My ignorance.
Hi My Friend, It might seem like I am having a bromance with you by all of the praise and communications I have sent recently, LOL. But I realized I don't know at least your first name so that I can be more respectful. I am and have been enjoying your restoration videos and I wanted to point out my observations. First, I am so impressed by when you have a lack of knowledge on an item you are troubleshooting, restoring or scavaging you are not too proud to not admit your lack of knowledge on a projex=ct but the lack of knowledge is overcome by your patience, troubleshooting skills, and your calm demeanor. It is a winning trifecta and never stop the way you narrate. It is a gift and as a near homebound disabled male You bring me into your shop with each project and for the time I watch you do your magic I am not thinking about my own physical limitations and feeling my depression over how far I have fallen, both physically and mentally due to the depression my disability causes me as we struggle financially since I became disabled. Compounding that is that my wife is disabled too after her diagnosis of Multiple Sclerosis she had a terrible attack leaving her incapable of continuing her long-time career in Retail management. We both were in upper-level retail management and our loss of income going on to disability devastated our lives and is causing a 35-year marriage to continue to possible failure. Money problems will destroy even the best of marriages and I am so entertained watching your genius. Be well and if you feel comfortable can you let me know your first name? Mine is Louis.
I just cannot get over how quiet that compressor is. If I run over to the house and my compressor is refilling I can hear it in the kitchen facing the garage. My blows to have a compressor that quiet. I just assume all large compressors made a lot of noise. I really love how you save things from going to the recyclers.
Fascinating never had time to play with compressors always wanted to! Enjoyed all the of useful insights into how and why problems can occur. Yes to a teardown of the old unit always interesting to know how and why things fail, regards R
Yup. Time to quit the day job, put a brother bear in the oven, order a new CNC machine and build cool schidt for the interwebs. Oh, wait, wrong channel. 😁
Enjoyed the video and appreciate the tip to look out for double set screws when taking pulleys off a shaft(12:20). Surprised that you didn’t clean the rust off of the inside of the hub of the motor pulley (14:10) after you carefully wire-brushed the motor shaft. A lot of people are visual learners, which is probably why most of us watch TH-cam, so it would help your viewers, who are following your every move, to briefly mention or show that you did tighten the set screws on the motor pulleys when you re-attached them to the motor shaft. I am not a regular viewer, so I was a little surprised that you are so casual about electrical connections - not tightening the crimps on the power connections at the regulator switch first thing, and putting loose live wires carrying a high load into a socket, instead of spending a couple of minutes attaching them to a standard plug, is beyond my understanding of the basics of personal safety in the shop. I’ve learned what little I know about such things the hard way - looks like you are luckier than most, so far. On a positive note, you are getting good results doing it your way, but skydiving would probably be safer for you.
Does it even have any bearings? The motors he works on don't have any anyway. That's not likely to need bearings with out the load of combustion to deal with the gas motors don't have?
holy cow man i've watched you for along time and just realized YOUR CHANNEL HAS BLOWN UP!!!!!!!!!! 135,000 views in 2 days i bet you never imagined that a few years ago, congrats my friend!!
tear down of the compressor head is here, th-cam.com/video/bEgSpDZ1Vwg/w-d-xo.html
Now for the Good Rebuild of Part 2
Sounds like big Mama peeing laugh out loud
Can I say that the motor pulley look's pretty large for the air compressor ..I know these compressor's like to spin at a set RPM range but you can accomplish this with the correct diameter pulley and unless I'm wrong that one looks large so the air compressor RPM speed might be low...
An idea would the fitting from old compressor of worked in the new one?
@@tommynygaardjensen9786 you may want to improve the sentence structure before you continue trolling youtube,
I'm curious how the old one looks inside. Please take it apart! :-)
Yah I'm too
Yeh yeh
Me too!
Me too, looks like bearings?
Me 5
Of COURSE we have to see inside! :) Just cuz!
You have to tear down the bad compressor assy so we can see what failed...
Happy Easter and great show as always!
Hey Mustie, I have to say thank you!! You have inspired me to get old junk up and running like new again. So far I have resurrected a 2002 XR80R, a 1973 ATC70 and I am working on 2 Yamaha Maxims (1980 and 1981)... And this is just in the last few months. I have always loved tinkering but now I am making something good out of it all.
I've got a "fittings box", it has every single type and size of fitting you can imagine. Except the one I happen to be looking for.
Please take it apart, sounds like a broken connecting rod :)
Given the oil leak, I'd say seized bearing which chewed out the bearing seat, leaving a rattle. I would have been curious to know if it still has compression.
The ten year old boy in me just burst into a fit of giggles when you turned the compressor by hand and it farted and groaned. Most I have laughed in a month. Thanks Darren. Great video too well done.
Lol my mind went in the gutter also of farting sounds accompanied by laughter.
I like going to harbor freight and doing that with theirs but it's hard to play with them and still look like you're shopping.
Sounds like a duck!
i was giggling like a ten year old!!!
Glad I wasn't the only one :-)
And definitely tear the old one apart. Plus maybe put the guard back on, safety third.
I think I would reduce the size of the motor pully. That pully is running the hell out of that compressor.
That would be my suggestion too
Dam thing is running 100 per hour.
Please take the old one apart im curious what the inside looks like, by the way first time comments on mustie1 channel
welcome to the community friend ✋
Thanks im glad to be here
Im curious to see what inside i expect its similar to 2 stroke engine with reed valves but i never had one apart.
I think it would be cool to see a strip down of the other compressor head. Even to see the effects of low oil due to lack of maintenance, would confirm he importance of proper use/care to be taken with compressors. 👍
Nice video. I think its exellent that you'll delve into such a variety of different projects. One day a trail 70, the next a piston air compressor. Truly a man after my own heart. Keep up the good work.
Never ever let a project get away!
Looks like a 3450 RPM motor. Wonder if the replacement compressor is intended to run at 1740 RPM. Regardless, you should go much smaller on the motor pulley and slow it down to make it last.....
Exactly what i was thinking. :)
Was thinking the same thing.
Yep, even with that smaller pulley it's still running a little too fast.
Wondering about the puly size also
Is the intake breather jammed with too much material and starving the pump?
The first thing I thought of when I saw that huge pulley on the motor was "He better change that out so it doesn't trash that older compressor."😮 Sounds much better with the smaller pulley. If that motor is turning 3600, your compressor is probably around 17-1800 now (which is still a little fast, but not too dramatic). It should survive as long as you use a good synthetic air compressor oil that isn't affected by heat.
You ought to drill a couple pieces of 1 1/2" x 1/8" strap steel and weld 2 pieces of 3/8" all-thread to them and weld a piece of 1" angle iron, the width of the motor/compressor mounting plate, to the motor end and drill it for the all-thread. This will allow you to adjust the belt tension without fighting with screwdrivers and such through the mounting slots. I hate that they don't put some sort of adjusting apparatus on those cheap compressors from the factory. Ingersoll-Rand, Craftsman, DeVilbiss, etc. all come from the same factory in China or Taiwan now and they just slap the appropriate decals on them.😜 Overall, it ought run fairly trouble-free for a few years at least. Hopefully that motor isn't partially cooked inside where you can't see it. Time will tell...
Hey man, I am a computer engineer and service dog trainer from Ontario Canada, I watch and enjoy ALL of your videos! Thanks so much for making them!
Hi,
Here in the Netherlands it was already 2 in the afternoon (assuming we are 6hrs ahead) A new mustie1 video still is a welcome supprise though. Following your videos for over a year now, thanks for all your effords and the entertainment it brought me. much appreciated. Ohhh and by the way ..... I also would like to see the old compressor getting "analised" . Cheers Hans
I just watched 47 minutes of you fixing this compressor. Of course we want to see you tear apart the old one. We’re all curious now.
@@mrman3565 man I should have concurred
Ehh, if it ain't broke don't fix it. There are valves and pistons in there, we all know what those look like haha
@@mrman3565 p
It's called an unloader valve to keep head pressure off the compressor. Great videos, love the channel.
My eye goes to the nice trail 70 you have on the lift. My neighbor used to have one and I always wished I had one. Love it!
And a QA 50 to go with it...
Great video. I've been all over YT and can honetly say yours has a ton of important information in one place that took a lot of videos amd time for me to gather and entertaining to boot. Thank you very much!!
I recently picked up a Speedaire 5 horse 80 gallon compressor really cheap! It looked to be in good shape other than being stored outside for a few months after moving from their shop. I got it home and after a helluva time getting it off my truck solo (do not reccomend) I learned it was a 3 phase motor -whoops. So I turned to Amazon and 5hp single PH. That's where I learned about the importance of pulley sizing and some about wiring, plumbing, NPT/flare/compression etc, offloader tubes, one way check valves, cut on/off windows, Pump PSI specs,etc. Fired up and the Pump had Rod Knock from hell, so Harbor Freight for a single stage 2 piston 5HP 150 PSI pump. Im about to fire it up literally minutes away but a previous obligation is in the way so I have to wait just a little but longer. Thank you for the video had I found it sooner I'd be done by now haha
Of course you can, no question about it. Thanks for sharing
Please make another video about what happened to the old one. Thank you for making this video
The drive pulley needs to be even smaller Darren. RPM on most compressor heads is 850rpm. Just sayin. Zip~
I will just about guarantee some folks will think that if they double the size of the pulley that would make it 1700 RPM then it would fill the tank twice as fast. LOL
looks to me like they changed the motor pulley to get more CFM, I figure that's what screwed the rod in the head, the wires got burnt because of the extra load when starting.
Yep you are right needs about a 3" pulley on the motor or it will fry as well.
That's the largest shiv I have ever seen on the motor of a compressor, smaller pulleys would lower power consumption and greatly increase longevity of all components.
Darrin should have heard me yelling at the computer screen that the RPM was way too fast.
Read the plate on the motor to see how fast it spins. A compressors best speed will be well less than 1000rpm to give the air enough time to get into the cylinder or he is only compressing a small amount each stroke. I call it false economy. I run mine at 750 and it does just fine with a small motor with a 2½" pulley.
The motor pulley is not the Chinese original. That one is too large in diameter. Explains why original compressor blew oil and tore up. Also explains the burnt push-on lugs. The motor was drawing excessive current from being overloaded.
I've been going watching your channel. You remind me of my grandfather, in a good way. 😬
You're an old school mechanic. Your troubleshooting technique is something everyone can learn from.
Thank you for sharing.
The pulley on the motor seems way too large I think it's running the compressor too fast
"Oil was too clean to see..."
Try this: Wipe down the dip stick, then reinsert it to get the oil level on the stick. Pull the stick out and lay it sideways against a paper towel. The oil will mark the towel and it'll be 100% readable.
Sometimes really old oil in an old engine looks really clean because the junk has settled out over years of storage.
that's a cleaver little tip, something so simple,yet brilliant, mick from uk.
Hi Mustie another great video as always. You've been a great inspiration for me to get back to work on the projects I've neglected due to depression and other personal issues. Anyway yes I'd like to see you disassemble the other compressor. Kind regards Paul Rawcliffe from Perth Western Australia 🇦🇺.
Yah right, The person you are helping out is you. LOL The new garage.
Thanks for the reminder to drain the condensation...I haven't done mine in a while. Been using it a lot lately. It's a tiny compressor but it fits the bill in my garage.
That looks a big diameter pulley on the motor, might be too fast for the compressor.
@@noidontthinksolol it's not only about compressor RPM it's looking at maximum current draw of the electric motor. You absolutely must not exceed FLA, ideally your be sitting around 90% because it's a cheap single phase motor. Most air compressor heads are rated for a range of horsepowers. That's tuned by the pulley ratio.
While you was at HomeD you should have picked up the power cord plug too. lol
Nah, it'll be wired straight into the electrical box, (that's why it doesnt have a plug now, in the shop it came out of it was wired in a box) plugs are expensive and the compressor tank is likely going to be bolted in place not moved. The only time you need a plug is if its gonna be portable, trust me you don't wanna lug around one of these beast unless you have a forklift.
Just remember safety 3rd 😄 when testing.
Nice repair. Yup, tear the old one down. Happy Easter!
Mustie1, I appreciate you doing these videos on air compressors and the ones on generators too. I’m having problems with both of mine, and this gives Me new things to look for. Thanks for sharing your knowledge and videos sir
A postmortem is always interesting. Might even be interesting to see if it's repairable since it apparently hasn't thrown the rod yet; although the rod and crank are probably galled beyond reuse.
Great video and repair!
Happy Easter. Your work is always the best way to open the morning.
Pull it apart love to know if it's crank or piston trouble shouldn't take long.
Please make a Englishman happy
Gary
It's a bolt in the crankcase.
I'm on the sparkie side of things and I was hoping you'd pull off the cables trim them and reterminate. I guess that isn't as exciting as the mechanical stuff!
The pressure switch should dump air every time it turns off and we don’t hear it hiss. Also if it still gets very hot try dropping the peak pressure by ten psi it will really help and also saves power.
Love the videos..that small copper tubing from the tank (check valve) to the pressure switch is to bleed off the pressure on the pump. to reduce the current draw back on start up and keep pressure off the pump head.
I saw that flash at 1:12 and thought "That's not good". But the connecters weren't real snug. Interesting video. I've learned so much from you.
Yes, time to tear down!
Yes - open it up.
Also, put a street ell on the drain and extend the drain out the side. Get rid of that petcock and put in a ball valve.
Ball valve is the way to go. Easy peasy and can purge the water out in less than a minute. CDA!
About twenty years ago, I had to figure out why we were running out of air so quickly at our shop, twin compressors daisy chained together. One had a ball valve that worked great, the other had the peacock that was busted off, so this compressor was never completely drained over approx 10 years. Bottom line of the issue was a “tank full of pressurized water”( 80-100 gallons). When I removed the peacock, it shot out like a rocket, and we had a water jet running for about 10 minutes. ScAred the hell out of the office staff, and Lady the shop’s black lab. All of this was because the service company wanted to sell two new industrial compressors, but the boss said for me to go play. By the way, our regulators were set at 250 pounds pressure, for inflating tractor trailer tires and 1 1/2 inch impact guns. Whooosh!!!lol
Easy way to check the pulley alignment is to get a length of straight, threaded rod (say M6/M8 1/4" 3/8"). Lay it in the V of the bigger pulley on the point of balance. Then tap it until it falls towards and into the smaller V pulley. That will accurately allow you to adjust the alignment.
The ring you fitted to the pipe and tighten up on is called an Olive in UK , as usual an excellent video..!..!
I've heard Americans call them olives too!
I vote for three things. 1) Measure the actual head temperature of this compressor. The running temperature can make a huge difference in its longevity. 2) A still smaller pulley on the motor on this compressor. It sounds like it is spinning a lot faster than most compressors I hear. 3) Don't leave curiosity hanging. Tear down the other compressor to see what the failure is. You will always wonder if you don't! Don't drive yourself crazy that way!
Mustie1 says "Hey guys, how's it going." my brain says "It's time to breathe and de-stress." I wonder if with everything that’s going on in the world, these better repair/restoration channels realise how many people’s sanity they are saving?
I was late to the party so I have a great backlog to watch.
Breakfast and mustie1, can you get much better? I think not!
Southern hemisphere here, how about a 10pm beer and mustie1 on the eve of a public holiday? :D
And don't forget , coffee with that.
With me, I include a few cigarettes during my viewing pleasure. Lol
Niterider albin Sunday ritual here as well!
If you measure the circumference of the old pulleys and divide one by the other it'll give you a ratio you can use to find the correct sized motor pulley, but I think you got it just about right.
yep please take the other one apart. im curious
Find out the cost of part's to find
Fix the original that unit would cost over $800.00 new I would think.
Goes to home Depo to buy a 90 degree copper elbow, doesn't purchase a power plug... steps on power lead pulling wires out...
Hahaha, Just found the channel, Subbed and binge watching.. Now i feel like fixing my air compressor, engine, and having a look at our generators if we still have them.
Great video mate.
The number of fittings and belts you have hanging around is amazing.
I believe your motor pulley is still a little too big.
Yes I too think that motor pulley is too big. A compressor head I had had a recommended top speed, it isn't hard to calculate the final speed based on the motor speed and pulley sizes.
yeah, run that compressor slower, way too hot
Hands down my favorite channel on TH-cam
Had a Quincy head about like yours. 800 rpm is the goal. I saw another guy said the same thing. It sounds like it is still running to fast.
exact, usualy, 1000RPM is the maximum allowed for a stationnary compressor, other important fact is that you should measure the consumption of the motor to be sure that it is not overloaded, usually, an electric motor can take a certain onerload for 20 minutes, it is called service factor amd usually, it is between 1.00 and 1.15
Lowering the RPM will reduce the load on the motor too. He needs a smaller motor pulley still.
@@markg735 when a compressor is spinned too fast, it looses effeciency and it oped the door to high oil consumption because the intake ports are too small and an important vacuum inside the cylinder is created permitting oil seepage around the piston rings that are much heavier than in an engine
I'd say that was an upgrade rather than a repair. That old compressor head will probably outlast five modern ones. Thanks for sharing!
The old compressor that you turned over by hand ... sounded almost as BAD as my mother-in-law ;(
Mother in laws have their own frequency.......bitchmhz
You should check the rotation of the motor and most 220/240 motors are reversible!
They are, but you can see in the video that the motor is indeed running counter-clockwise so it's already running the proper direction for that compressor pulley.
Way too fast, but the proper direction.
@@MrUbiquitousTech its going the wrong direction for the pulley fan it needs counter clockwise to blow cool air. (I have worked with loads of fans)
@@stonedsavage7814 Exactly, that's what I said up there.
Tear it down! Just keep the CT70 in the background so I can keep gawking at it😁🤣🤣
Good morning Darren. Happy Easter. I think the shroud will probably help with cooling.
Leo Ryan If nothing else, it’ll keep things from getting caught in the pulleys.
The Bob Ross of repair jobs. I love watching your videos.
If I didn't say it already, love your videos man. You should use a lot of caution though, with a used compressor, particularly the tank. You need to check them for water, and rust. I have seen older tanks explode, and that would really ruin your day, especially with one that large. Take care man.
gotta love a bit of good old percussive maintenance on rattles and noises
Of course we would like to see inside the old one... please :)
Most compressors run about 900 - 1200 rpm. The older cast iron pumps ran slower to last longer and let their larger valves work better. I don't hear the unloader hiss when pressure switch shuts off. That will unload pressure in the 'svc loop above the check valve and allow the motor to start the pump without running against the tank pressure on the valves.
SM Jones agreed
With a piston compressor head, direction only matters for cooling. Rotation is converted from a rotary motion, to a reciprocating motion by the crank. So, it's up and down for the piston no matter what direction you turn the crank. The reed valves will only allow the air to flow in one direction in any case. I have built a number of these compressors using piston type air conditioning compressors from vehicles. They are very powerful and work well as long as you regulate them (the electromagnetic clutch makes this really easy using just a standard compressor pressure switch), and you gotta keep oil in them. They do "puke" a little oil into the outlet so mount a separator inline and an air filter on the intake. Keep in mind, these are designed for R12 pressures, so use caution. Most of these I have mounted on vehicle engines, for mobile use, but I have build some stationary one too. Nice job man.
Great save. Your friend should be very happy. Would like to see the damaged unit opened up. And would love to see your friend setting up their garage.
I vote to see the old pump torn down and I vote for a smaller motor pulley. Those old cast iron pumps were probably run by a 4-pole 1725rpm 1hp motor. I think it'll die an early death running that fast. But whatever you do, keep them videos coming!
That compressor farting and squeaking made me laugh
Also your "Think it had beans" made me laugh - yeah I'm immature but I don't care!
I know I laughed too 🤣
Funny stuff
YEP!
We all need to know what went wrong with it love watching your videos keep it going
That's a serious belt collection, Mustie! Thanks for another great vid.
I retired my bike shop and have a couple of hacks for you, every shop has its 'secret sauce' for cleaning carbs, I use Alconox it was developed to clean tatoo equipment, I get it on ebay a couple of tablespoons in the ultrasonic, leaves no residue. To put new rubbers, handlebar grips, intake manifolds just spray insides with carb cleaner slides on like fresh snot.
I want to see you fix the old compressor. I've always wondered if its possible. Everyone seems to replace them instead of fixing them.
Any subscribers here rewatching some of Mustie’s older video’s in 2024?
Just an idea haven't watched the whole thing but you can reverse an electric motor by swapping wires. Shouldn't break anything.
Mitchell Walls. Dc yes. Ac no.
Most cheap compressor motors are not reversal.
Swap wires 5 and 8 in the junction box. This looks like a pretty quality motor. It has thermal protection. Should not be a problem. I have worked on hundreds of compressors
@@scroungasworkshop4663 400V AC, yes, just swat two of the three wires, 220V AC no. (i'm european, so i don't know what powergrid you run over there)
Great video, as always. I agree with the other comments that the motor looks like it's a 3450 RPM and turning the pump too fast. That would explain why the other pump died. I've worked on a number of Quincy compressors, all of which had a maximum pump speed of 900 RPM. Look up the pump RPM specs, change the pulleys, and you have a keeper.
I worked for a company where I inspected buildings we had rented and I looked at a few empty ones that had compressors chugging away merrily. They are also used in the HVAC controls of large buildings.
Yes I love tearing things apart to see both why they failed and how they work.
I work on air compressors so I already have an idea. But I would still like to see what torpedoed this head.
He said it looks like it had an out
Oil leak and ran dry so how could a crank and rod cost not as much as a new compressor. Your in the business you have an idea. And can find him the head unit or part's.
Got to know. Both how it works and what is the fault/faults. Great video, Very interesting.
Seems to be running way too fast? No spec or info on that thing of course but I have never heard a similar compressor at such a high rpm.
Those old ones putt putt. I think that's waaay too fast.
No load. Crank is freewheeling.
Enjoyed this video ! I have a similar air compressor project to do . A craftsman air compressor with a motor ( data plate ) that reads Packard - a division of General Motors so it will be interesting to see if I can get it going . It was given to me by a friend . Her husband passed away a few years ago and it was sitting in her barn . It would sure be nice to have it done ! Enjoyed your video for sure .
Worked for a factory loading/mixing coffee beans for roasting, one of the loader's job responsibilities was dumping the water from the compressor. It's amazing how fast that bucket would fill up in the summer time. :)
Yes please tear down the old compressor. Love the stove fix. Classic.
Yes, please. Let's see the blown compressor; I was looking forward to that.
Is the belt tension OK now? It runs smoothly for a while then starts flopping (better word?). My ignorance.
Tear it down. Need to see if it's repairable!!
It is such a pleasure to watch your videos. Thanks again.
Hi My Friend, It might seem like I am having a bromance with you by all of the praise and communications I have sent recently, LOL. But I realized I don't know at least your first name so that I can be more respectful. I am and have been enjoying your restoration videos and I wanted to point out my observations. First, I am so impressed by when you have a lack of knowledge on an item you are troubleshooting, restoring or scavaging you are not too proud to not admit your lack of knowledge on a projex=ct but the lack of knowledge is overcome by your patience, troubleshooting skills, and your calm demeanor. It is a winning trifecta and never stop the way you narrate. It is a gift and as a near homebound disabled male You bring me into your shop with each project and for the time I watch you do your magic I am not thinking about my own physical limitations and feeling my depression over how far I have fallen, both physically and mentally due to the depression my disability causes me as we struggle financially since I became disabled. Compounding that is that my wife is disabled too after her diagnosis of Multiple Sclerosis she had a terrible attack leaving her incapable of continuing her long-time career in Retail management. We both were in upper-level retail management and our loss of income going on to disability devastated our lives and is causing a 35-year marriage to continue to possible failure. Money problems will destroy even the best of marriages and I am so entertained watching your genius. Be well and if you feel comfortable can you let me know your first name? Mine is Louis.
It needs a 1750 motor, 3450 is good too smoke that compressor head in no time
yup chek the3 rpm of the notor tooo
I would like to see whats left of the old one, please take it apart.
26:06 Like my granddad used to say: You sure? -because I can always cut a piece off, but I can't cut a piece back on!
I just cannot get over how quiet that compressor is. If I run over to the house and my compressor is refilling I can hear it in the kitchen facing the garage. My blows to have a compressor that quiet. I just assume all large compressors made a lot of noise.
I really love how you save things from going to the recyclers.
Fascinating never had time to play with compressors always wanted to! Enjoyed all the of useful insights into how and why problems can occur. Yes to a teardown of the old unit always interesting to know how and why things fail, regards R
Perfect Easter Sunday morning. Mustie and coffee. Thank you sir.
Scary amount of views...This channel is reaching Critical Mass and the critical masses..
Well done Mustie!
.and the the LOOK of his garage and HOARD mustie is reaching CRITICAL MESSSSS!!! I luv that!!!!!!
Yup. Time to quit the day job, put a brother bear in the oven, order a new CNC machine and build cool schidt for the interwebs. Oh, wait, wrong channel. 😁
Ingersol Rand is a decent brand when it comes to compressors. I have one myself now for the last 30 years.
these are off shore , the broken pump is actually made by an Italian company called techquip
I have an Ingersol Rand that was built in 1945 with an Oholiab pump , it has never missed a beat, these new ones are made in China, total crap.
There’s nothing better than a nice polished shaft. Indeed.
Enjoyed the video and appreciate the tip to look out for double set screws when taking pulleys off a shaft(12:20). Surprised that you didn’t clean the rust off of the inside of the hub of the motor pulley (14:10) after you carefully wire-brushed the motor shaft. A lot of people are visual learners, which is probably why most of us watch TH-cam, so it would help your viewers, who are following your every move, to briefly mention or show that you did tighten the set screws on the motor pulleys when you re-attached them to the motor shaft. I am not a regular viewer, so I was a little surprised that you are so casual about electrical connections - not tightening the crimps on the power connections at the regulator switch first thing, and putting loose live wires carrying a high load into a socket, instead of spending a couple of minutes attaching them to a standard plug, is beyond my understanding of the basics of personal safety in the shop. I’ve learned what little I know about such things the hard way - looks like you are luckier than most, so far. On a positive note, you are getting good results doing it your way, but skydiving would probably be safer for you.
I am both surprised and dismayed that you didn't purchase a plug while at Home Depot.
Please do the follow up tear down on the failed compressor. I'm curious if it's just bearings which can be easily replaced or something more serious
Does it even have any bearings? The motors he works on don't have any anyway. That's not likely to need bearings with out the load of combustion to deal with the gas motors don't have?
Almost spit out my cigar when I saw your belt stash!!!
holy cow man i've watched you for along time and just realized YOUR CHANNEL HAS BLOWN UP!!!!!!!!!! 135,000 views in 2 days i bet you never imagined that a few years ago, congrats my friend!!
I really enjoyed this video. I loved the way you fixed your heater that was Awesome. Thank you.