Auto Drain Rebuild

[crossfirepb]

I’ve got an old Poseidon compressor and I think maybe the autodrain needs to be rebuilt. There seems to be a little bit of air coming from the muffler when it’s running and after it shuts off if I dont close the valve right away

I dont even know where to start looking for the issue or what might need to be replaced. And I don’t know any model or part number for the autodrain to start looking. Does anyone recognize this and could maybe help get me started?

 

[happy-diver]

Avoid leaving tool marks

Take plenty photographs