[les korcala]

Richard and Russ thanks for the tips, I do know of the check valve , mine is outside of the regulator and I did not move it at all.
I did find out the problem! one small diameter air line which going to the springs relay box was kinked and would not allow air going to it! Now all works perfect ! I get good solid 70 minutes out between cycles!
Will go back home and replace new tank just to be on safe side !!
Love to re plumb all and make simple connections, case someone put more brass unions than you need it.
I talk to Terry from Newell on the phone and asked him what would happen if I did not be able to fix it could I drive with this air line open?
He said : no problem! engine is supply with its own compressor and draw the air through different air system and everything will work!!!

That is good to know.
I send the tank back to Newell since they have send me wrong one , 8" diameter and it wont fit because dryer's big fan is in its way!also mounting brackets would have to be change since is short tank. Ebay and Amazon is floated with right tanks 6x23" for anywhere 50-90$