I just put some duct tape around it and it's fine, it would take about an hour to drain completly by itself so i can deal with it, but whats making the big pulley "half-seize"? its full of oil, its actually kinda of overfilled, when open the fill plug oil comes out, do i have too much oil doing this? There is a small leak near the pressure guage which i cannot fix because the "nut" on this thing is plastic and when you put a wrench on it you just round out this plastic part. Everytime i open the drain plug, i get oil all over my hand. I also have LOTS AND LOTS of oil in the tank. I have to start sprinning the big pulley by hand to get it to go, or just let it cool down and start over again. The big pully end with the piston and stuff (i do not know technical terms with compressors) kinda starts to "stick" and doesn't move freely causing the electrical part that truly drives the belt to spin without spinning the belt. Hoping i'm not high jacking your thread, but i have an old 1/2 hp 7.5 gallon montgomery ward horizontal compressor i recently tore apart painted and put back together it ran awesome for about a total of 12 hours in 3 days. Again, I'm just trying to weigh out if it's worth doing. I also know that I can still get all the pump rebuild kits. However, this tool center deals with more industrial tools and they would function test it, but not offer repair services for it. I have a local tool center that agreed to bench the compressor and I could at least see what the extent of the damage is. My questions are: Has anyone on this forum repaired a compressor with favorable results, is there anywhere to send it for repair (besides Sears), is it worth putting a couple hundred into or should I put that money towards a new/ newer compressor. I assuming that I will need to either replace the pump or rebuild it. This leads me to believe the pump seals have deteriorated, which I know is typical for units that sit unused for years. My concern is, when I opened the drain plug on the air tank, oil dripped out. I'm yet to fire it up and he said it worked fine.when he last used it 14 years ago.
#Craftsman air compressor repair free#
If air flows both ways through the valve, even if it’s a limited flow in one direction, the check valve has failed and needs to be replaced.Ĭomments or questions? Please post them below.I recently got a free air compressor from my father in law. Give it a good rinse in very hot water, and test the check valve. Basically the check valve should only allow air to flow in one direction. Disconnect the line(s) from the tank check valve and unthread the valve from the tank. Regardless, empty the tank completely with the power off. There are many configurations of tank check valves, but essentially they have the line coming from the pump to the tank, and may have another small line teed off that runs over to the unloader valve on the pressure switch. The tank check valve is typically located where the line from the pump head enters the tank. Over time the check ball or flap in the check valve, or the place on which it sits, can become “crudded” up, and may prevent the ball or flap from sealing tightly enough to keep air in the tank. With no check valve, already compressed air would stream back up the line and out the unloader valve which is always open when the compressor is off. The tank check valve is supposed to keep air in the tank after the compressor stops. If there are no leaks to be found anywhere on the compressor, then it’s time to consider that the tank check valve is leaking. Remove the soap solution before the intake filter is reinstalled. You might even pull any intake filter if there is one and carefully soap over the intake port to see if a bubble forms. Soap every joint on the compressor that you can find. Let the compressor run up to cut out, and shut off the power. Mix up a soap solution, 1 part soap to 10 parts water. Photo: Where is the compressor leak coming from?Īfter the tank is drained, it’s time to find out where the leak is coming from. A newer Craftsman 26 gallon 1.6 HP 160 PSI air compressor