KOBALT Quiet Tech 26 Gallon Air Compressor FAILS AGAIN! (Watch this to learn how to fix it)

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Engineerable

Күн бұрын

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@freshdc Жыл бұрын

Great video I'm having the exact same problem with the same compressor

@engineerable Жыл бұрын

Thanks, this should work for you. Just make sure to use the high temp Loctite, because otherwise the screw will loosen. So far, the new piston cup has lasted longer than the original.

@markyakubovsky3380 11 ай бұрын

Great video man- and thx for answering with good follow up on how it's held up. Considering buying this compressor and searching the pros/cons..@@engineerable

@engineerable 11 ай бұрын

@@markyakubovsky3380 The new piston cups are still holding up well, longer than the originals. Only buy it if you are ok with doing the piston cup service. I also recently added a smart switch that cuts it off overnight and weekends, and if there's a large leak, like a pipe bursting. Watch this video for how to add the smart switch kzbin.info/www/bejne/o2rIiH-he9hoers

@Cochraneracing 11 ай бұрын

I have a brand new one just like this and it just hums/lightly whines when I flip the switch. Doesn’t kick on. Put a new start cap on it and still same issue. Any recommendations? Please help

@engineerable 11 ай бұрын

If there's back pressure on the compressor it won't start. Like if the unloader valve is not releasing pressure. Check if the motor rotates freely. Otherwise could be bad centrifugal switch.

@Nevada_Jack Жыл бұрын

Do you think that a bit of oil applied to the piston cups during assembly would help them to seat and possibly reduce wear?

@engineerable Жыл бұрын

Maybe, but it's not necessary for assembly, and it probably won't last long. The piston cup itself is made of "dry lubricant" aka PTFE, aka Teflon.

@brettanderson5273 Жыл бұрын

Great video, thank you. I have the same Kobalt with the same issue. not a problem to rebuild the cylinders BUT I cannot find a 75x70x40 cylinder sleeve anywhere. Have you had any luck finding this part? I love the compressor when it is working, sucks to think it is a throw-away purchase if I cannot rebuild the compressor. I did some research and found some replacement cylinder sleeves that are 75x70x49.5, but these won't work for obvious reasons. I also looked at buying a replacement motor, california air makes a couple that are very close to this one, the problem being that the mounting holes are not the same and will not work. Any thoughts or suggestions?

@engineerable Жыл бұрын

I was also unable to find compatible cylinder heads either. You could add 9.5mm spacers and get longer screws. If you have a lathe, you can cut the sleeves shorter. I was very tempted to get a 2hp California air tools motor. I've heard them and they are way quieter than the Kobalt. If your Kobalt is within the 3-year return period, may be best to return and buy a whole new CAT compressor for not much more than the motor alone costs, although it's only 10 gallons: www.aircompressorsdirect.com/California-Air-Tools-CAT-10020C-Air-Compressor/p70275.html

@ixx-smg-xxi3088 Жыл бұрын

Where did you find the parts at I have one that won’t produce air have had it about 2 years no issues till now

@engineerable Жыл бұрын

Links to parts are in the description or in this post www.engineerable.com/single-post/kobalt-quiet-tech-26-gallon-air-compressor-fails-again-watch-this-long-term-review-before-buying

@eduardoperez7797 2 ай бұрын

How are the new seals holding up? Thanks

@engineerable 2 ай бұрын

@@eduardoperez7797They are still working fine. Have worked much longer than the original seals.

@lebronjean2007 Жыл бұрын

By chance to do know the size of the o ring that sits in the head? Cushion the piston sleeve?

@engineerable Жыл бұрын

The piston sleeve cylinder ID measures 69.8mm, therefore, the O ring ID should be about that. The piston sleeve wall thickness is about 2.6mm.

@MichaelT-ft3cz 3 ай бұрын

Random question While I had the head off it looked like *that* gasket (the head gasket) may be deteriorating. I don't see any way to access it, it seems sealed in from the factory with no access....Are you aware of any want to get at it or am I out of luck?

@engineerable 3 ай бұрын

Is that the gasket between the valve plate and the head? It's possible that a gasket from a similar sized oil less air compressor will work, like California air tools. It's call the Cylinder Head Obturating Ring.

@MichaelT-ft3cz 3 ай бұрын

@@engineerable Amazing, thank you so much! This is exactly what I needed!

@tuggyboat 3 ай бұрын

Weird, I wonder if my compressor was made differently. I've owned two of them since 2019 and I have never once had to work on any of these. I took it apart when I first bought it to see how it worked and it had green seals not yellow like yours. But I bought 2 for a sandblaster, sold the sandblaster now I swap which one I use every few months. I use my compressor constantly about 3-4 hours a day minimum and they get used in the rain and It NEVER has any issues. Must be a new manufacturing problem.

@cbpagent72 2 ай бұрын

I have the exact same compressor and it barely gets any use because every time it kicks on it trips the breaker it doesn't matter what I do.

@jrjacobs7357 Жыл бұрын

Just an idea, order extra seals if they work while they're still available. I would put the sleeve over the rod first then slid the piston in from the top and screw it to the rod. Then you know your seal is going in the right direction. Just a couple observations.

@engineerable Жыл бұрын

Yes, good idea to buy some more. It continues to work great after using high temp loctite. Unfortunately, on this compressor, it's very difficult to remove the piston from the crankshaft, so not practical to slide the piston in from the top.

@OffTheLens Жыл бұрын

My kobalt 26 is like a month new and it turned on and then never turns on you think this could be the problem?

@engineerable Жыл бұрын

No, that seems like an electrical issue somewhere.

@gjkMN Жыл бұрын

Thank you for this. I have an Eagle EA6500, which appears to be the same compressor motor, that suddenly became very noisy and slow to build pressure. Hopefully its a simple fix like yours.

@engineerable Жыл бұрын

Sounds like the same symptoms. The piston ring cup is designed for 1600W motors, so seems like it should be the same. Check with Eagle first if they have rebuild kit

@gjkMN Жыл бұрын

@@engineerable I took mine apart and found a huge gash in my cylinder wall, along with metal shards. Somehow something metal must have made it's way in and did damage. Oddly the cup wasn't completely compromised, however it was far from airtight.

@engineerable Жыл бұрын

@@gjkMN Is one of your intake/exhaust valves in the head broken? They provide those in rebuild kits, so I assume they can break.

@gjkMN Жыл бұрын

@@engineerable nope, still intact. Just one intake looks a little dented from whatever bounced around in there.

@gjkMN Жыл бұрын

@@engineerable update: upon further inspection, I did in fact have a broken exhaust valve.

@Oneguygarage 7 ай бұрын

Nice video. I just bought one. Hopefully work good. I didn't buy the extended warranty.

@engineerable 7 ай бұрын

Thanks, piston cups are the only issue I've had, and the replacement piston cups have lasted a lot longer

@Oneguygarage 7 ай бұрын

@@engineerable do you recommend it?

@engineerable 7 ай бұрын

@@Oneguygarage Recommend what? Extended warranty? It sucks because you have to take the compressor in each time and get a new one. Takes less time to change the piston cups when they go bad.

@maikelanias Жыл бұрын

Donde comprar el nuevo cello

@engineerable Жыл бұрын

All links to parts are in the description.

@josephtheinflatableguy4609 Жыл бұрын

could dirty air filters have caused this?

@engineerable Жыл бұрын

Nah, the filters don't look dirty. Our shop air is clean and filtered

@josephtheinflatableguy4609 Жыл бұрын

@@engineerable Its air intake filters may look clean but can still be dirty enough to restrict airflow to the pumps

@engineerable Жыл бұрын

@@josephtheinflatableguy4609 I get what your saying, but these filters look like new and seem to allow air to pass easily.

@marvinwiens2774 Жыл бұрын

I think the cause of the failure is probably a consumer grade low usage product sounds like it is in continuous use in a shop where a true HD commercial compressor should be sourced. A modern medium priced unit failed after 2 years of continuous use. I have seen old timer garage compressors that ran daily for 50 years with no maintenance. They are expensive to purchase that kind of quality.

@silvercrxsi Жыл бұрын

I think the problem your having is that it’s basically just a compressor designed for occasional at home use,and oil free for low maintenance because of that ,the pump seals typically have a 1000 hour life span, if your using it everyday all day long in a workshop environment it’s not going to last, your better off going with something more commercial grade that requires oil, and as long as you service it by changing the oil it will last an extremely long time, and another benefit is that most are belt driven so a motor or pump can be replaced separately

@engineerable Жыл бұрын

I moved from oil compressor to oil-less for lower noise and cleaner air (even though I already have good filtration and an air dryer). California Air Tools oil-less air compressors claim a 3000 hrs, and based on how often ours run, I calculated that it should run at least 3-5 years (2-4 hours a day of use). So far the new piston cup has run longer than the original. It appears that the Kobalt compressor is lower quality than California Air Tools, so maybe 1000 hr lifespan is more accurate.

@plasmar1 5 ай бұрын

@@engineerable I dunno if this will help any but if you ever try oil and belt driven again, I suggest getting the biggest mufflers you can find at a decent price and if needed mod it for use with mufflers; I got an old sears campbellhausfeld that was thrown out and first thing I noticed was that was pretty high CFM, I than made a cover that went over it's infake that I threaded to install 2x filter based mufflers that's about 2-3inches diameter, it's pretty silent minus that slight...** I also frankensteined it onto a 20gallon modern campbellhausfeld that was being sold as a non functional return unit.... generally I find find direct drives to be fairly high pitch but belt driven just need to have better mufflers installed:)

@jeflyer 7 ай бұрын

WARNING with FIX: My 6-month old KOBALT Quiet Tech 26 Gallon Air Compressor stopped creating any pressure. It runs and sounds normal, but zero pressure. From all the reviews I almost returned it under warranty, considered replacing parts, etc.. But wait!!! INSPECTION: With motor running, unscrew the round air filter housing and BAM SHAZAM it works like new again. (It's only used in a "fairly clean" garage.) The air filter housing top comes apart (put the nut in a vise and push and twist the cap off). Filter inside was clean as new. PROBLEM: the small inlet tube got filled in by a tiny mud dauber. SOLUTION: Use a Phillips head screwdriver to remove the mud dauber seal. Cover the hole with screen material.

@engineerable 7 ай бұрын

Good to know.

@realtruth97 9 ай бұрын

Maybe you should've put the piston cylinder first before the disc. Then pushed it down. That way it would've been air tight in there.

@engineerable 9 ай бұрын

Unless you can explain how to do that, I don't think it will be possible. The piston cup has to be sandwiched in the piston first before it can be put inside the cylinder. It was not difficult to put inside the cylinder if you tilt it like I showed.

@realtruth97 9 ай бұрын

Why didn't you lubricate it? Grease would help a lot.

@engineerable 9 ай бұрын

The piston cup is Teflon, so it's made of lubricant. Adding grease would defeat the purpose of an oil free compressor, which is clean air uncontaminated by oil or grease.

@gabrieljones6218 7 ай бұрын

I agree Kobalt it complete crap I have same air compressor my air regulator knob went out Lowes told me I had call Kobalt they do not have the replacement parts 3 year warranty IS COMPLETE LIE they will not replace any parts or will they give you replacement air compressor this air compressor is used for my business I'm on budget and can not afford go out buy better air compressor. Lowes told me I could buy new air compressor and use that knob. so your tell me a knob will cost me same price as new air compressor wow I will get right on that lol I have already tried to buy after market replacement knob witch will not work it does not line up with the gage compressor module. I had to ditch the Kobalt and just make my own gage and hose connection because Lowes would help me i will not be a Lowes customer I will travel extra miles go to home depot my next air compressor will be through east wood since I am into auto body business. Lowes gets a 0 star from me.