C13 New compressor, air dryer, and governor

I need of some assistance my old compressor was going out ( I think) it wasn't building air pressure quick enough. It would work but only on higher RPMs, at idle it would recharge but it would take forever. So I bought a new air compressor and dryer since my old one was very worn.

I went from the cat double piston to the single piston so I had to get creative with the plumbing.

So I was told by bendix the tanks won't fill till the dryer reservoir reaches 100 psi my truck was only building up 50 psi. Per bendix I removed the safety valve on the dryer and put a gauge and it read 50 psi. I pressurized the system to 120 psi using the air valve, I had air in my tanks, I started the truck pressed my brake till I got the low air light and it won't build up air under high rpm or idle.

Has anyone experienced this before? Any ideas on what is wrong? I would really like to get my truck back on the road.

 

So I installed a hose from the compressor discharge line directly into the dryer. I plugged all ports on the dryer besides the governor line. It still won't build more than 40 psi. Everything is new, any ideas now?

 

It's turning it makes 40 psi the line is connected.

 

Question I have a T660 kenworth does that line from the compressor run straight to the dryer? I disconnected it from the dryer side cause it's easier. That line is buried between my coolant lines on the compressor side.

BTW thank you for your help!

 

Ok I will try it and let you know. Thank you!