Brief Description: Fuel Tank Line/Spar Bolts Torque
John McCreight measured the distance between the fuselage and the fuel tank fitting: 2 1/4". The fuel lines were cut to 2 1/2'' for the length coming thru the fuselage. The ends were smoothed out, elastic grommets placed on the fuel lines, fittings added, and the ends were flared. The holes in the fuselage need to be enlarged to 1'' diameter for the elastic grommets to fit.
I checked the torque on the 3/16'' spar bolts across the top of the spar and marked them with torque seal. I thought that the torque value for the NAS bolts was 90-115 in-lbs for the 1304 bolts and 170-190 in-lbs for the 1306 bolts. This torque value was checked on each of the top bolts. I started to put torque seal on a few nuts and noticed that the washers could rotate. The torque for these bolts needs to be investigated more, because at least the larger bolts need more torque.
