Fixing our Central Pneumatic air compressors

Рет қаралды 27,833

3 жыл бұрын

Not one but two compressors gone bad. At the same time too! Both are the Central Pneumatic brand from Harbor Freight, 21 gallon 2.5 HP 125 PSI MAX models.
I'm hoping these are quick, simple and cheap fixes. Let's see if these fixes work, if not I may have to strip them down and turn them into something else lol.
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#compressor #centralpneumatic #haslipcycleworks
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Stainless steel reed valves - amzn.to/3wwM1Wx
Pressure relief valve - amzn.to/3xube3R
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Пікірлер: 112

@roberthayes5037 10 күн бұрын

Outstanding video. Thanks for the video. Iv had one of those compressors for over 15 years and now I’m hoping to get more out of it. Thanks

@caseyshroyerdrumming Жыл бұрын

Thank you for this. I went to take the winter air out of my drum set to put in new spring air. But the air compressor just kept running as if it were Cleatus being surprised by his probation officer with a cup in his hand. Now, thanks to this outstanding scholar, I can rest easy tonight knowing my air compressor just forgot how to reed.

@jimwilshire3642 Жыл бұрын

Never gave the cold start valve a thought. Mine is the snap ring type. I took it off the head and sprayed it with WD-40 and worked it a little. IT WORKS. Thanks so much for the advice and video.

@HaslipCycleWorks Жыл бұрын

That’s awesome!

@monosurge 4 ай бұрын

A million thanks. You saved me a ton of time.

@6605eric 2 жыл бұрын

Your video and explanation was much better than other on this same subject. Thanks

@HaslipCycleWorks 2 жыл бұрын

Appreciate that!

@isakwilkinson2491 2 жыл бұрын

Dude it is so refreshing to see the guy who knows what he's doing and shows you kind of the step-by-step on how to repair one of those I chopped it up to being their Chinese they break he got to go buy another one but it's awesome to see that you can get parts for him thank you so much for your video keep making more

@HaslipCycleWorks 2 жыл бұрын

Thank you! I really appreciate that and glad the video helped.

@Movieman1965 Жыл бұрын

Thanks for sharing this! You have helped many of us who are asked to fix things for other people. Have a great day!

@HaslipCycleWorks Жыл бұрын

Awesome! Glad it’s helped someone.

@Movieman1965 Жыл бұрын

@@HaslipCycleWorks It did! I just opened the upper head like you did and found the broken reed valves! Have an awesome day!

@goingjag 2 жыл бұрын

Thanks, have exactly the same two different problems on two compressors. Saved me some trouble shooting.

@HaslipCycleWorks 2 жыл бұрын

That’s what it’s all about. Thank you for the positive feedback!

@herq2409 Жыл бұрын

Reed valve…mechanical genius! Thank you! My CP air compressor is having the identical issue!

@mykehex9159 2 жыл бұрын

Saved me!!!!! Great straight to the point video

@doughankins3996 Жыл бұрын

Thank you so much!! I have the stalling problem on mine. I thought maybe it was an issue with the capacitor, but it seems like I will try this as well and also replace the Reed plates while I'm at it.

@HaslipCycleWorks Жыл бұрын

👍

@JJJobson Жыл бұрын

I just figured if mine ever breaks I will just use as an auxiliary tank if I can’t fix it. Thanks for the video.

@josesupra Жыл бұрын

I’m watching other guys take theirs apart like bro I know someone sells that part for less than $10. It’s not even worth rebuilding that relieve valve. Thanks for the video man.

@HaslipCycleWorks Жыл бұрын

You are absolutely correct 👍

@robertkilby2428 8 ай бұрын

thanks, I was having the reed valve problem but I went ahead and ordered both parts

@sergiobarajas4649 2 жыл бұрын

Thanks. mine is click and no start I was going to sell for 50 bucks but now I think I can go deeper and fix it. Thanks again.

@HaslipCycleWorks 2 жыл бұрын

That’s the spirit, it will be less than 50$ to fix. Also if you still want to sell it, you can get more if it’s running.

@billynorris8967 9 ай бұрын

I needed this video , I have that exact compressor from Harbor freight in Lansing, I don't understand the Reeds ,but the left side was broken , that valve needs a new O ring I think . Will need this video saved to help get my compressor running again.

@HaslipCycleWorks 9 ай бұрын

So glad it helped. Good luck with the repairs.

@CHIBA280CRV 2 жыл бұрын

Fantastic informative video sir thanks 👍👍👍👍👍

@AXNJXN1 2 жыл бұрын

The little brass component is called a Cold Start valve.

@liquescustom1881 3 жыл бұрын

Great job man. Good to know that

@HaslipCycleWorks 3 жыл бұрын

Thank you

@TheOzziepup Жыл бұрын

great video, mine built up to like 80 lb of pressure and quit. the head and cylinder got hot as hell and started smoking! tore the head off bad Reed valves and the other gasket needs replaced also! can I get the other metal gasket along with the Reed valves?

@HaslipCycleWorks Жыл бұрын

Thank you! I’m sure you can. Amazon or EBay would be the first places I would look.

@luismoran6213 Жыл бұрын

Thanks for the great video, very useful.. any idea where to buy the oil plug? Appreciate your help

@HaslipCycleWorks Жыл бұрын

Thank you for the compliment. Glad the video helped. I haven’t had the occasion to look for one but I’m sure it could be found on Amazon or EBay.

@Hyp59 Жыл бұрын

Have the same issue as 1st compressor, I hope it's as easy as yours was? Will definitely let you know and thanks for getting right to the point.

@HaslipCycleWorks Жыл бұрын

Absolutely! Glad the video helped. Definitely come back and comment if you got it resolved. Thank you!

@fatasianone 6 ай бұрын

Fixed my HF compressor! I opted for a ball valve but the logic is the same.

@maxhaslip5621 3 жыл бұрын

Good to know info

@HaslipCycleWorks 3 жыл бұрын

Better than throwing them away and had to buy new ones, right?

@dennisochterski7095 3 ай бұрын

Good video, thank you. I’ve been searching for a diagram of the exact way it goes together. I have all the parts but not sure the order of reassembly. What order did you put back together? Starting from the compressor itself, cylinder, then one thick metal spacer that has the indentation for a reed valve, then the other thick metal spacer to hold the other reed valve, then thin metal gasket then the head? In your video, that thick metal piece came off with the cylinder head, but when you reassembled it, it looked like you were just putting the head over all the parts, lining up the holes, and bolting back together? Any assistance would be greatly appreciated, as I have reassembled it a few times, and it still doing the same thing. Turns on, makes a groaning sound, but does not start.

@HaslipCycleWorks 3 ай бұрын

Thank you! Unfortunately, I do not recall the assembly order and no longer own these compressors. If I did, I would take one apart and send you pictures. I tried jumping on google to find a parts diagram but have come up empty so far.

@dennisochterski7095 2 ай бұрын

@@HaslipCycleWorks thank you. Found one on Reddit. Got it going, but now it only hits about 80 psi, then keeps running.

@HaslipCycleWorks 2 ай бұрын

@@dennisochterski7095 air leak somewhere? Did you replace anything?

@johnysilver1853 2 жыл бұрын

My compressor starts working and builds pressure up to 150psi but sometimes during work it will not start and won't keep tank charged. Sometimes it turns on only for a few seconds then goes quiet. Sometimes I hears something that it wants to start like air going somewhere through the pipe for about 2 second and then quiets and stays like that. Fails to keep up pressure in tank when I use it. Pressure goes low as 50psi but compressor doesn't start. Then I had to open drain valve to release remaining air pressure in the tank. Disconnect it from AC power for few minutes and it starts working again build up to 150psi again. I don't hear any air leaks. What could be wrong? How to fix it?

@HaslipCycleWorks 2 жыл бұрын

Sounds like you might have a couple issues. Is it plugged into and extension cord? If it is remove it and plug straight into the wall.

@jeanjacque1577 Жыл бұрын

I have 1 of those that just crapped out after 10 years I had an issue of it not shitting down I would have to turn it off then turn it on to use it. 1 day I forgot to turn it off and it smells burnt but still worked until I went to start it again now nothing. Probably going to replace the motor if I can find a cheap 1

@HaslipCycleWorks Жыл бұрын

Should be able to find one online. I think harbor freight used to sell the motors separately not sure if they still do.

@jeanjacque1577 Жыл бұрын

@@HaslipCycleWorks I'm going to check with them today or look online

@johncware66 10 ай бұрын

Informational. Would have liked more info on how you diagnosed what repair was needed. Or were you just lucky? :)

@HaslipCycleWorks 10 ай бұрын

I guess I didn’t elaborate on that very much did I? Generally if the compressor will stall on restart with air in the tank and trip the breaker it’s that small relief valve. If it runs and runs and runs and doesn’t make much pressure and just gets hot it’s usually the reed valve. Now sometimes you can have both conditions so I just played it safe and ordered 2 of each part. Always good to have spares on hand.

@aldovasquez1828 Жыл бұрын

I replaced the cold start valve and circuit breaker still trips, I ordered a new American made circuit breaker coming in tomorrow. Ill repost the results. Thanks Update: Ok, so I replaced the reset circuit breaker and is now working like it should. If the valve replacement didnt work for you, next thing to replace is the circuit breaker. 👍

@cm1133 Жыл бұрын

It’s the pressure switch. It’s ALWAYS the pressure switch.

@jjeter7828 3 жыл бұрын

👀💪👊 always amaze me!

@HaslipCycleWorks 3 жыл бұрын

Thanks brother!

@jjeter7828 3 жыл бұрын

@@HaslipCycleWorks 🤜🤛

@tomhuynh3173 Жыл бұрын

My problem exactly likes your number one unit, bough the valve on your link replace it still doesn’t work what else should I try. Thanks!

@HaslipCycleWorks Жыл бұрын

Did you replace the stainless reed inside the pump too?

@kartnerds 3 жыл бұрын

Dude you just saved a fortune

@HaslipCycleWorks 3 жыл бұрын

Yes sir, was super cheap compared to buying a new one. Plus if you see one for sale that’s not working this might help get it running on the cheap!

@kartnerds 3 жыл бұрын

@@HaslipCycleWorks you read my mind. I was already browsing fb. Lol.

@betancourtcesar1 Жыл бұрын

Hi you know where I can find the cold valve

@HaslipCycleWorks Жыл бұрын

Amazon has them for relatively cheap.

@brianmoretti6480 Жыл бұрын

I bought the exact part but I can’t get my cold start valve to go into the threads it seems to be to big , why ?

@HaslipCycleWorks Жыл бұрын

Does your compressor look the same as mine? There maybe a difference between them or a change in the design.

@factionfx Жыл бұрын

Any idea how many hours these had on them when they needed repair?

@HaslipCycleWorks Жыл бұрын

No sure don’t. Wish I would have kept track.

@calebbruce4346 2 жыл бұрын

Do you know where I can get the diaphragm for the cover on the oil drain side

@HaslipCycleWorks 2 жыл бұрын

I took a quick look but was unable to come up with anything. If you have the part number you might be able to contact them and ask for a quote for the part.

@jennifermatoy8633 Жыл бұрын

Any tips or tricks on how to keep that diaphragm in place when trying to put cover back on? It was taken off to drain the oil and now the seal isn't sitting down into the groove like it should so it leaks when it runs. I was going to mess with it again so I'm looking for videos. Did you happen to find out where to get a new one at?

@fritzgolden6237 5 ай бұрын

I took that cover off to repair. The crank had bound on the piston (connecting) rod. Got that freed up. Now I can't get it to seat properly. I was thinking of trying to use caulk or "liquid gasket".

@johnfleischmann3066 Жыл бұрын

Please help. Mine will hold air when I fill it from another compressor. The pump will not fill the tank at all but will blow up a balloon when I disconnected the line from the tank. I traded the relief valve with a closed cap. Thanks.

@HaslipCycleWorks Жыл бұрын

That relief valve serves a purpose. I would replace it with a new one. I would also check the steel reeds in the compressor itself like I did in this video.

@scottouimet2865 Жыл бұрын

I just picked one of these up for $100. It works but sounds like it is running rough/hard. My work horse compressor a 4gal kobalt quiet tech and I also got a little pancake compressor. But this one sounds way rough. Maybe I just have a bias but I'ma change the oil and pressure adjustment valve.

@scottouimet2865 Жыл бұрын

Also seems to take a little longer than the quoted 5-6min full time altho I only messed with it for about an hour before I decided I want to change the oil before I used it anymore.

@HaslipCycleWorks Жыл бұрын

@@scottouimet2865 check the metal reed valve too. Sounds like you are headed the right way with it.

@scottouimet2865 Жыл бұрын

@@HaslipCycleWorks thank you for replying to a yr old video. I'ma check out some more of your vids. Seems like the stuff I'm already watching.

@HaslipCycleWorks Жыл бұрын

@@scottouimet2865 appreciate that!

@4722010 2 жыл бұрын

where did you get the parts at?

@HaslipCycleWorks 2 жыл бұрын

Amazon, links are in the description.

@anthonyallen5378 Жыл бұрын

Unfortunately I just ordered one. Thank you for the post

@brianmoretti6480 Жыл бұрын

What’s the numbers on the second one you fixed serial number

@HaslipCycleWorks Жыл бұрын

Unfortunately I can’t look, I sold both of the compressors when I got moved into the new place.

@joell439 3 жыл бұрын

👍😎👍

@ungredyinmed7484 2 жыл бұрын

my compressor was running when power went off, power came on compressor stayed off. played with the switch nothing happened. I kinda believe that perhaps a valve is broken valve?? despret but hopeful.

@HaslipCycleWorks 2 жыл бұрын

Could be the breaker needs to be reset on the compressor.

@jeffreysnethen9586 Ай бұрын

I just replaced broken reed valve on mine, still runs non stop will only make small amount of air.

@HaslipCycleWorks Ай бұрын

Replace the check valve as well.

@jeffreysnethen9586 Ай бұрын

@@HaslipCycleWorks Thanks

@RustBeltFab_ 3 жыл бұрын

😎👍🏻

@brian13873 3 ай бұрын

I just buy a used one, but it not going pass 40 psi, what could be the possible cause

@HaslipCycleWorks 3 ай бұрын

The 3 items covered in this video could be the cause. It’s cheap insurance to replace all three especially on a used compressor.

@brian13873 3 ай бұрын

@@HaslipCycleWorks I might have to change the gauge and pressure switch also

@brian13873 3 ай бұрын

I wonder if I leave it to full up and the gauge still shows 40 psi. Can it blow up over pressure? Because I think the guage is the problem

@HaslipCycleWorks 3 ай бұрын

@@brian13873 I wouldn’t do that just to be safe. One of mine did the same thing. It would run and run and not go over a certain point. I replaced the 2 valves and the reeds and it worked perfectly after that.

@brian13873 3 ай бұрын

I will keep you posted when i change the two parts @@HaslipCycleWorks

@jjmccloud Жыл бұрын

My reeds aren't broken but still won't build pressure

@HaslipCycleWorks Жыл бұрын

Could it be the check valve? If that doesn’t seal all you air will leave through it inside going into the tank.

@brianmoretti6480 Жыл бұрын

I bought the new valve and it is to big to go in the threads why is it to big

@HaslipCycleWorks Жыл бұрын

Same model compressor? There may have been a change by the manufacturer.

@brianmoretti6480 Жыл бұрын

@@HaslipCycleWorks same exact compressor 125 psi 2.5 hp 21 gal

@HaslipCycleWorks Жыл бұрын

@@brianmoretti6480 send me a picture of the valve and where it’s being threaded in to haslipcycleworks@gmail.com.

@bryanbrown8427 6 ай бұрын

Two at once? Not two separate vids? Making it harder than it needs to be for the viewer.

@HaslipCycleWorks 6 ай бұрын

A video that has been out for over 2 years and over 21k views and you are the first to complain about this.

@bryanbrown8427 6 ай бұрын

Yep, I am a bitcher! BUT LET ME SAY THANK YOU VERY MUCH for the second fix. You are good at what you do. Just keep the fixes separated for those who watch only for their crisis du jour! THANKS SIR! @@HaslipCycleWorks

@cm1133 Жыл бұрын

I bet both compressors have faulty pressure switches. It’s ALWAYS the pressure switch.

@HaslipCycleWorks Жыл бұрын

Actually no, I thought that too initially.

@cm1133 Жыл бұрын

@@HaslipCycleWorks I was shocked. It’s ALWAYS the pressure switch.

@GetShitDone-du6xd 4 ай бұрын

Take it easy on the 5 year old Chinese child that put that compressor together! I think he did a great job for only being 5 years old and working 23 hrs a day in a sweat shop! He only forgot one important part! 🤣 I give ya credit though for working with what ya got and rolling the dice. You are a better man than me! Glad to see it worked out for you. …just curious…how much were these compressors new? I used the same harbor junk compressor that came with the used blast cabinet I bought off a guy as a holding tank. I ran the compressor one time and didn’t feel like wearing double ear protection so I won’t ever plug that Chinese death trap in! I’m still trying to wrap my head around him actually sand blasting with (one) of these grenades for 10 years and never upgrading!!! I think he just plugged the compressor in, filled his hands full of media, and threw it at what he was working on.

@HaslipCycleWorks 4 ай бұрын

Hahaha I have since upgraded to a Quincy 60 gallon 2 stage. First thing I noticed was how quiet it was and how fast it filled compared to the HF units. It got me by but I’m glad those days are behind me.

@robertkilby2428 8 ай бұрын

thanks, I was having the reed valve problem but I went ahead and ordered both parts

@HaslipCycleWorks 8 ай бұрын

Good deal! Having the extra parts just in case is always a good idea.