vintage 5 hp 2 cylinder devilbiss compressor
by T. McCown
I have a Devilbiss 5 hp 2 cylinder compressor that was probably manufactured during the 1940's.
The compressor pump is making a ticking noise that gets louder as more pressure is created.
The pump will still pressurize the tank to 125 psi.
There a small copper tube that is connected between the 2 cylinders and then connected to the tank through a pressure relief and check valve assembly.
There is also a tube that is connected between the cylinders and the oil reservoir.
What might be the cause of the noise and is it repairable?
I believe the tank is ASME rated. What is the potential useful life of the tank? Can I hydrostatically test the tank?