Great video , I get your frustration in the process, but at the end, it was worth it!

best video on KZfaq

just wanted to say thank you for posting this. My compressor locked up also and took it apart and figured very easly how to fix it because of your video. Thank you

No vids like this Thanks! 😀

Thank you I been looking for a video like this for a long time

Wow thank you so much dude. If it wasn't for your video I was getting ready to dump my shit in the garbage. I was in the middle of a roof job and my exact compressor like yours in your video was humming n not working. I took it apartment like you did put it back together. Working like a charm. And yes it died cause I had no oil in it. The piston in there was jam cause no oil . Thank you . You save me hundreds. Jose from new york

Very Hepful video. Thanks a lot.

Great video, thanks !

Great video I was watching it for 1 reason to see how the reed valve plates and gaskets go together in order haha and you end up skipping that whole bit

Video great u save me from spending 3 400 dallors u the best

thx for the info have the same problem.

mine will run for a bit on a hot day maybe 50lbs shutdown. on a winter day will run good.i bought it didn't work right I found a wire not plugged into one of the two capacitor blue wire looked like it was hot at that connection at one time.i plugged it in worked all winter outside. but summer days kills it and it maybe the next day before it comes back on.Any hints I'm open to help thanks!

Where did you get parts? My compressor hums like that. I Have the same craftsman 12 gal.

@unity was there a small bearing in the piston? I ordered a piston fro eBay and seen no bearing. So wondering there should use a bearing so when I turns it rides on that inner groove correct?

Also these oiled compressors have to be on a level surface, so the oil slinger can get the proper amount of oil to toss around to lube properly, and only fill the oil to the middle of the red dot, and only use 30 weight oil not 10w30, also empty the water out of the tank bepending on level of usage every month.

Ive got a craftsman 4gal 3/4hp air compressor..it powers on fine and quickly builds up to 125psi...however...if i turn it off and bleed a bit of air and power it back on the motor just hums...wont power on properly...if i pwr off and let air all out of tank and then pwr compressor on it works fine and goes to 125psi....it seems that the motor is fine but something is locking up on the pump side...like an air lock...not allowing motor to turn...as long as the compressor doesnt shut off while under pressure it works fine

Do you have a link to the parts you purchased?

Saludos desde Colombia, necesito saber porque medios puedo conseguir el pistón, la biela, y el cigüeñal; ya que aquí en Colombia no lo he podido conseguir, gracias!

I need a new connecting rod and crank for my compressor do you have a website I can go to to see please reply

it's an soulless upright 5hp 150max psi.maybe an great run time everything mechanical looks good

It's humming because it doesn't know the words....

Sorry you said it at the end of the video

Think my piston locked up oil sprays out of from the oil cap

I have a HF compressor. Makes a very similar noise when I go to start. But if I spin the fan blade by hand (before the reset button pops out) it will run like normal. It just won't start without that nudge. Ideas? There's a smear of oil around the sump gasket and it's impossible to see from the sight glass what the level is. Going to try draining that completely and refilling. Interesting video. Thanks. Nice to see one that wasn't hand held camera.