Posted 6/4/2020 22:02 (#8298568 - in reply to #6997634) Subject: Re: 664 rogator free wheeling
I had the same problem. Mine was a bad o ring on the logic block relief valve on the top right of the logic block... 45$ fix.. spent 250$ replacing most of the other o rings in the system before I found this one.
664 rogator free wheeling
