Vacuum pump teardown

Just a vacuum pump teardown
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[@bigclivedotcom]

Looks like a vane pump. The vanes are probably extended by centrifugal force as it spins and scoop air and compress it as they rotate off-centre to the cavity.

[@bigclivedotcom]

Oh - it's a two stage vane pump on the same shaft. I guess one will be a roughing pump and the second stage increases the vacuum.

[@patrickjholguin4447]

You got it spot on!! Take care!

[@bobweiram6321]

@@bigclivedotcom I can tell he's never seen your channel. He's not starstruck. LOL!

[@lordjaashin]

@@bobweiram6321 why would anyone be starstruck by seeing a comment?

[@daveg8918]

Great tear down. Now you need to rebuild it.

[@Peter_S_]

I appreciate the teardown, having never seen the inside of a vacuum pump before.

[@jacobfoxworth]

Its a two stage vane pump. Google has all kinds of animations on how they work. But yeah, that basically it. The things that sling out are the vanes. They spin around and create a difference of pressure as they spin from the wider area to the narrower area. The oil helps seal everything up to allow lower vaccum to be achieved. It also lubricates but main function is sealing.

[@sjefoekel6058]

This is te most tidy workshop i have ever seen!👍👍👍

[@watomb]

JD industries sells the Cartridge($160) and you can make that pump work like new.

[@throttlebottle5906]

buy a new one at probably contractor discounted rate, unload old one as rebuildable on fleabay or some local lists. :)

[@RayRay-nb7tn]

You are not alone. I never knew what was inside or what the individual pieces did inside. Thank you for the show and tell. Lolol. Nice video. Will see you on your next one.

[@JuanTodoli]

Excellent visual of the acting vanes. Thank you for the teardown, appreciated 👍

[@kangaroogod]

It sure beats the knowledge I had which was “its pfm”. Thanks for staying up and shooting the vid

[@RedFathom]

has the same coupler as my yellowjacket pump. it's like a mechanical fuse for if something bad happens.

[@dbc105]

Hey man, I'm just glad to see youi tear it down, I have one that runs but is not sucking a vacuum and now I know what to do. Thanks.

[@josbrun]

Thank you! I learned something today. I have an old JB pump that I took out of service few years back. It was pumping, but making noises. Probably one of the vanes. It’s been sitting under my workbench ever since. I’ll se if I can get the cartridge for it and swap it. Would be nice to have a spare pump.

[@scrambler350]

Cool video - was always curious what was actually inside my pump - now I know!

[@marknaravas318]

Same thing that creates pressure in automatic transmissions. But those have variable displacement.

[@hartsfire5706]

grate tare down . looks the same as the larger pumps i worked on for a few years.

[@FactsMattersUSA]

Could have cleaned the motor brushes, replaced pump springs and wala, a new pump is born. You destroyed a very nice pump. AMAZING!

[@patrickjholguin4447]

Those small rectangular metal parts are called vanes.

[@Uncle-Duncan-Shack]

Nice video, thanks for sharing. Popped you a mail on how the gas ballast works on pumps fitted with them. Kind regards, Duncan, South Africa

[@neilyoung3080]

Appreciate the video. Glad we can learn together.

[@HughMcVea]

Enjoyable video Bill, thanks for making it. I was expecting a Piston Pump rather than the Positive Displacement Pump.

[@Heavy_metal_rulez]

Cool video curious vacuum pump guy!

[@electricboyo]

It looks to me like that is a 2-stage vacuum pump. There are 2 pumping rotors with vanes, each one in a separate compartment. The exhaust from one compartment is the intake for the second compartment. That’s also why there are 2 reed valves. It looks like 1 of the rotors is thicker than the other. I don’t know sure which comes first? I recently bought a similar 2-stage vacuum pump at Harbor Freight. Everyday price was $139 but they gave me some discounts so it wound up costing < $100 and it works great.

[@joshuabest100]

Why don't you keep that motor around for maybe a rainy day when one 0ump has a motor failure

[@joshuabest100]

This actually reminds me of the wankel rotary engine

[@HVACRSurvival]

I liked the video Bill 👍👍. I wondered how the cheaper ones were built so cheap.

[@diakrisis1]

Vacuum pump tear up is more accurate

[@DetectingArizona]

Doesn't look like it would be to hard to rebuild it. Might try to do one.

[@jullian02rq]

Can I use a HVAC vacuum pump in my trucks AC system??

[@GoutamDAS-ls1wb]

I really enjoyed your video and I think that your explanation of the way those metal shafts work on the rotor for squeezing out air is spot on! I am wondering if what spares are available for that pump (realize your intention was to disassemble to learn) to get it working again. Those 2 metal flaps would be one--would the metal plates on the rotor be the other--it seems that eventually the edges would wear down. The motor seems to be good.

[@randylong9045]

Good job man!

[@MrMultitool]

That WAS a good pump when it was new.I sure like mine.

[@danielgagne485]

dual stage, wet vane pump. Those" scoops" are called vanes. If the motor runs, and all vanes are in good shape, the next piece that would fail is the reeds. Im not a pump mguy either, but Used to help build dry vane pumps and have used them in my lab many years. Break about one a year...until I bought an Edwards pump. Its industrial grade and worth rebuilding. Most are throw away junk these days. Nice video. Had I never done a teardown this would have been very helpful.

[@lordjaashin]

where do you get replacement parts for rebuilding edwards rotary vane vacuum pump?

[@RJMaker]

LOL 6:03 Now that is classic Curious HVAC Guy.. Cracked me up.. Thanks for the video and the laugh...

[@hvacworkshop4791]

Why they don't make a discharge port with hose connection, So you can use it to test system pressure?

[@kevinvt4174]

Or was that both sides of a 2 stage pump?

[@alriv44]

Do you have the wiring diagram?

[@IFIXCASTLES]

Very interesting.

[@jeffreymurdock8366]

Those slats of metal are called vanes. Kinda cool how that stuff works

[@71sc502]

Im a professional vacuum pump tech. That plate is a splash plate that prevents the valves from splashing oil from where it shouldnt go. Those arent reeds, they're exhaust valves.

[@dalethomasdewitt]

Reed valves. They sound like reeds, they quack like reeds, so they're reeds. Listen to the banter and you'll concur on such colloquial nomenclature. The part isn't sold separately on the cheap ones. Cutting your own with appropriate sheet might be doable. Not sealing tight reduces effectiveness obviously.

[@middleway1885]

Aww... no clips of the drilling... did you wiggle it much, or did you just put pressure on it? Thanks for keeping it real...

[@Peter_S_]

Is the little rotor in the front an oil pump?

[@curioushvacguy6876]

I would say sort of, it slings the oil and uses it to seal the vanes as they extend out during its rotation. I believe anyway

[@twincam825]

learned how to destroy a vacuum pump .

[@KG-yn9qi]

Nope I do not know any more than you! Nice to see what's inside. Thank you was interesting. They probably make a repair kit, but unless know how to mic up for clearances to know what has to be replaced. Cheaper to buy a new one? Good job!

[@Ronnie01964]

Hey what do have here...a sharp dressed man!

[@Eddy63]

Good one Bill ... Looks like some hackers in the comment section ...

[@daveblane6442]

NO "T" HANDLES??

[@urayys]

Thanks for taking the time to tear one of these down. Sorry you had to destroy the small retainer. Curious to know if you ever put it back together and figured out the puzzle pcs.

[@samename3926]

I have this same pump...it's not pulling a vac. Turns on runs good but no vac . What do I do to fix this?

[@watcherwatchmen7785]

@@samename3926 Check the plastic flexible link that connects the motor to the pump underneath. It might be stripped out like mine was. 13.00 part. My pump was running but no vacuum. Apparently these linkages are designed to break to save the more expensive parts from damage. Also, change your oil with fresh stuff.

[@samename3926]

@@watcherwatchmen7785 that was the problem easy fix thx

[@watcherwatchmen7785]

@@samename3926 Awesome man, glad I was able to help.

[@pacearrow4620]

its like a mazda rotary engine with apex seals. I bet just by replacing those "apex" seals the pump will be renewed

[@71sc502]

6:51 I was like yeeeeeee nooooo please dont lol

[@smalljobrob6432]

Grainger carriers all parts very reasonable prices. Only us Black Gold JB oil.

[@throttlebottle5906]

lol @ "cutout 37 minutes of me spinning this thing"

[@davegeorge7094]

Vacuum pump problems suck, how do you fix a nothing=vacuum. Look for tiny leaks.

[@kcomfortsystemshvac7060]

Nice video,,,,I am going to tear down ,,my vacuum pump ,,now !,,, 😂

[@sterlingarcher46]

Man when you see how much oil gets trapped inside, how are we meant to purge the old contaminated oil ever ?

[@throttlebottle5906]

change it often, so the contamination is minimal?

[@heavydiesel]

Get a cap from the oil can and fill it, then run the pump and carefully suck the oil and air through the inlet to the pump where you gauge line goes. Doesn't really need doing unless the pump is contaminated. Also, if its really dirty, put fresh oil in and run it until warm and change it again, repeat until you are happy and the oil comes out clean.

[@sterlingarcher46]

@@heavydiesel Cheers for that 👍 . I wish they made it easier like the Fieldpiece one where you just have a tap to open and voila !

[@dalethomasdewitt]

The vapor pressure of the refined oil is the crux of all rotary vane oil pumps. Want vacuum. Replace oil. Simple but a bitch.

[@davegeorge7094]

Clean oil is only way here for deep vacuum.

[@71sc502]

I rebuild pumps for a living. not really these kinds. These arent worth the time for what we do, but i work on Edward's pumps ect.

[@harrydickson4575]

👍👍👍

[@rickyhertz7250]

Release the shamooo all over your healing bench

[@craighardey3751]

Vanes

[@throttlebottle5906]

rookie mistake not having it inside a catch pan! I knew it would lube the whole bench and worse :)) oh-well lol

[@curioushvacguy6876]

sometimes I learn things the hard dumb way

[@throttlebottle5906]

@@curioushvacguy6876 that's how everyone learns! well, except the college sheeple that think their degree makes them perfect, they tend to learn when fired or dead :)))

[@HVACRNorth]

Woo000

[@damonabets3779]

First

[@cliveramsbotty6077]

i'm so sick of people saying they drank some coffee. well done you drink coffee. who gives a shit.

[@curioushvacguy6876]

Im drinking coffee right now

[@lordjaashin]

@@curioushvacguy6876 thats why spent 37 minutes spinning that thing lol

[@AFTABAHMED41]

you don't no