Weld on center rotation tube on outside bottom and add 1/2" close nipple
- Put 1.5" x 6" pipe nipple in rotation bushing to help center the bushing in bottom of gas cowling. Remember that this is a rotation point, so alignment is important. Make sure rotation bushing stays firm on bottom while tacking and that the pipe nipple is not binding on the side of the hole.
- Tack 1/2" close nipple into small hole in side of cowling protruding outward. Make sure it aims out at 90 degrees. Fully weld around it, and screw on a 1/2" cap to protect the threads