Vent session ahead.
I was taking my time and being careful on the RV-10 fuel tanks since I know that a small misstep can cause serious pain and labor later. Left tank came out great. Right tank is near completion. Just before installing the rear baffle I installed the plug for the currently unused fuel return flange that I installed. Applied locktite 567 liberally to both the plug and flange. Backed the plug out a half turn any time I felt resistance. Finally during the last turn the torque was almost at 120 in/lbs and I pushed through a tiny bit of resistance when I felt the galling. Tried to unscrew it a little to relube the threads and it didn't want to budge.
Used a lot of force to unscrew it as a galled NPT fitting likely won't seal and definitely wont work if I end up installing a return line later and sure enough, strips the threads on both the plug and flange.
Luckily the Baffle is not yet installed, but the VA-141 flange is on backorder. Looks like I will have my right fuel tank sitting open for a while longer. Who knows how long the flange is on backorder for. Frustrating and nobody to blame but myself. At least I should be happy it is only a $40 mistake and fixable since the rear baffle was not yet installed.
I was taking my time and being careful on the RV-10 fuel tanks since I know that a small misstep can cause serious pain and labor later. Left tank came out great. Right tank is near completion. Just before installing the rear baffle I installed the plug for the currently unused fuel return flange that I installed. Applied locktite 567 liberally to both the plug and flange. Backed the plug out a half turn any time I felt resistance. Finally during the last turn the torque was almost at 120 in/lbs and I pushed through a tiny bit of resistance when I felt the galling. Tried to unscrew it a little to relube the threads and it didn't want to budge.
Used a lot of force to unscrew it as a galled NPT fitting likely won't seal and definitely wont work if I end up installing a return line later and sure enough, strips the threads on both the plug and flange.
Luckily the Baffle is not yet installed, but the VA-141 flange is on backorder. Looks like I will have my right fuel tank sitting open for a while longer. Who knows how long the flange is on backorder for. Frustrating and nobody to blame but myself. At least I should be happy it is only a $40 mistake and fixable since the rear baffle was not yet installed.