I just received my (not) Yong Heng compressor of e bay. The case is black, not blue. The compressor and innards all look the same as yours. Only one single cross tube. The cylinder looking object is probably the start/run capacitor for the motor. Mine was banging around in the case so I mounted it on the outside. I got the 110 volt model but it had the stop run pressure gauge. ( it didn't work) No instructions to speak of. Water tube was also worthless. QUESTION Should water enter the top or bottom of cylinder, or does it really matter. Have gotten good water tube, added oil and run for a few minutes. Finally, topped off three rifles using pressure release knob to control output. Little compressor worked great. Ask me again in six months.
I would add also, my kit came with lots of extras. At least two extra second stage seals, lots of o rings, blowout disks and other things I don't know about. Important to keep second stage cool as possible, whether seals or o rings on piston. Also watch the wiring. Mine seems to be as small as possible and still work. When I lifted the case to see what was banging inside the tiny wire to the switch broke off. All fixed now, but next time it will get a little heaver wiring.
I have actually filled in more than 15 tanks with it and the smell continues. Hence my question. I used the synthetic motor oil at first and then switched to the Hydraulic oil of the suggested grade. Does the burnt smell means that the pistons are letting in oil enter the compressed air chamber? Quote from: kingrude1 on July 05, 2018, 11:11:05 AMQuote from: airpointblank on July 05, 2018, 05:14:02 AMHi,Am getting burnt smell from the air that is filled into the scuba bottle. Changing the oil and using a different bottle to test if the burn smell remained - it did not work. The burnt smell continues. I have a large external golden filter that I procured seperately for the compressor attached. Any idea what could be the reason for this?That smell is common, as the compressor breaks in the smell will diminish.
Quote from: airpointblank on July 05, 2018, 05:14:02 AMHi,Am getting burnt smell from the air that is filled into the scuba bottle. Changing the oil and using a different bottle to test if the burn smell remained - it did not work. The burnt smell continues. I have a large external golden filter that I procured seperately for the compressor attached. Any idea what could be the reason for this?That smell is common, as the compressor breaks in the smell will diminish.
Hi,Am getting burnt smell from the air that is filled into the scuba bottle. Changing the oil and using a different bottle to test if the burn smell remained - it did not work. The burnt smell continues. I have a large external golden filter that I procured seperately for the compressor attached. Any idea what could be the reason for this?
I have been calling my compressor a yong heng but it appears to be some sort of clone maybe? Looks alot like the yong heng with a few major differences. Obviously no Yong Heng written on the side, the small hose filter is a bit different, the burst disk sits directly on top of the second stage, water hose connectors are different and the major difference is on the inside. Mine doesn't have o rings on the second stage, it is some sort of plastic bushing which I'm sure will be a nightmare to find a replacement for when this one wears out. May have to just see if someone can make me some?I can't complain really because the ad that I bought it from called it a Vevor compressor but the picture they showed WAS a yong heng. Another member here bought a Vevor compressor from the same seller and said he actually received a yong heng. Thats what I was really hoping for but no big deal as long as it works. He did say that his came with a small amount of oil in it as well so I'm thinking that they test them before shipping and can't drain ALL of the oil out. Mine just happened to spend most of its time upside down which gunked up the top end.Has anybody else seen a compressor like this one? I am a bit concerned as all the reviews showing the yong heng as a safe little compressor mean nothing now. Who knows if this thing will hold up under the kind of use the yong hengs do? I will be filling to 3500psi for awhile to play it safe.I'll be happy if it lasts me the summer and then I'll either get a REAL YH or maybe the AV Nomad from pyramyd air (if reviews look good).
My Vevor worked good but oil is very dirty with less than ten minutes run time, most of which is with open valves. When I did pump up the neutron star to 4500psi smoke was coming out case vent. Temp never rose and water was cold coming out. When I pulled quick connect off probe there was cotton like material in both. It blew thru the screen in probe. So now I have to try and clean out the pressure line and quick connect.