lostpilot28
Well Known Member
I've got my lower cowl fitted up and started getting the top one ready for aligning/drilling when I noticed that I had a slight "misalignment" at the front of the upper cowl. It's shifted to the left maybe 1/4" and can be pushed back into position by hand. I'd say your average airplane builder can align them just with your hand...maybe 10 lbs of force (I'm guessing).
If I un-clecoe the rivets on the firewall hinge the front sets into position correctly, but the aft-right side of the upper cowl shifts up and away from the hinge (maybe 1/8"). If I push the aft of the cowl back down to the hinge, the front slides to the left. Doh!
I already have the side of the upper cowl drilled to the hinge, so I can't do much re-aligning. Is this the "preload" that breaks off the hinge eyelets on some RVs?
Any suggestions?
If I un-clecoe the rivets on the firewall hinge the front sets into position correctly, but the aft-right side of the upper cowl shifts up and away from the hinge (maybe 1/8"). If I push the aft of the cowl back down to the hinge, the front slides to the left. Doh!
I already have the side of the upper cowl drilled to the hinge, so I can't do much re-aligning. Is this the "preload" that breaks off the hinge eyelets on some RVs?
Any suggestions?