Re: T/T pump conn
Yeah! it happens all the time those connectors are witches to get in sometimes.
You are fighting the natural "spring" of the tubing. Use a very small open end wrench or needle nose pliers to push up on the fitting while turning it with the correct 3/8 wrench. You can also bend the tubing a bit to relieve pressure on the fitting. If this does not work, try removing the tubing itself and install the pump fitting first. Hopefully the tube and fitting is not the UP trim which would require removing the engine from the boat.