OP
inane2
Silver Member
- Joined
- Feb 26, 2012
- Messages
- 137
- Location
- Kentucky
- Tractor
- NH T4.75 Powerstar, Kubota KX161-3 & SVL75-2
Good evening guys,
An update - I finally got the compressor fixed! As many of you suggested, I replaced the check valve and that instantly cured the problem. Pressure builds up to 175 psi, kicks out, hisses for about 3-4 seconds. When it drops to 145 psi, it kicks right back on with no problems.
We knew the check valve was letting air in and we also knew it was letting a little bit of air back out since it obviously wasn't seating completely. This air was going back into the compressor line (thanks spyderlk!) and sitting on top of the piston. The unloader valve was doing its thing but the air just kept coming back up out of the tank.
$8 on eBay and it's like a new one. I had noticed this seller was really selling this particular model of check valve.
Thanks again for all the help!
An update - I finally got the compressor fixed! As many of you suggested, I replaced the check valve and that instantly cured the problem. Pressure builds up to 175 psi, kicks out, hisses for about 3-4 seconds. When it drops to 145 psi, it kicks right back on with no problems.
We knew the check valve was letting air in and we also knew it was letting a little bit of air back out since it obviously wasn't seating completely. This air was going back into the compressor line (thanks spyderlk!) and sitting on top of the piston. The unloader valve was doing its thing but the air just kept coming back up out of the tank.
$8 on eBay and it's like a new one. I had noticed this seller was really selling this particular model of check valve.
Thanks again for all the help!