Hi, I'm trying to add a temperature fitting and swap around some tubes. I'm completely unable to open any fittings though on the LT120 both on the pump/cpu block and the radiator. In fact, the only fitting I could get loose was one side of a quick disconnect pair. The manual seems to warn against using tools but I am completely unable to loosen any other fitting. In fact, the fittings are so tight I just scratch out the coating if I use a pump plier and try to turn it left (counter-clockwise). What am I doing wrong? Are these kits not meant to be disassembled in any way?