Just completed my ear shave and had no problem getting it fired up. About halfway through the procedure I started to see coolant drops from time to time. I traced it back up. It appeared to be dropping off the top fin of the rear cylinder. Upon closet inspection there is a metal tube that runs into the top of the cylinder and that's where the leak is coming from I'm pretty sure. Problem is there's nothing there,. No sort of washer or tube I can tighten up, so I'm not sure how to stop the leak. Any suggestions?