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  #1  
Old 02-14-2011, 09:29 PM
Beancounter Beancounter is offline
 
Join Date: Oct 2007
Location: Canada
Posts: 100
Default Removal of wing bolts on A models

I thought I would post what worked for me when removing wings spar bolts from an A model. Unfortunately I have removed the wings 4 times now due to 2 house moves, the move to the airport and then to the paint booth. Inevitably there are 1 or 2 bolts that do not come out easily. Perhaps they get pinched when the wing moves. The A model has a few bolts that cannot be driven out from the front of the spar due to the location of the gear weldment. First get yourself an air ratchet and a 6 point socket. Usually the air ratchet can get the bolt to back out so the head isnt touching the spar. If it wont back away from the spar I have used a lever to push it back from the threaded end while rotating with the air ratchet. Then I have used a mini woodworking pry bar like those used to remove baseboards and crown moldings to lever it back little bits at a time while slowly spinning it with the ratchet. When you run out travel on the pry bar, you will have to make spacers so you can continue. I made my spacers out of UMHF plastic but you could use a hardwood. The spacers are drilled to the diameter of the bolt shaft and then a section is cut out on the band saw to form a U that fits over the bolt shaft. Various sized spacers in 3/8" increments worked for me. Replacement of the bolt may be neccessary if the pry bar scores the bolt shaft or head. I hope this saves someone some frustration.
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  #2  
Old 02-15-2011, 06:39 AM
Daver Daver is offline
 
Join Date: Nov 2006
Location: Albuquerque
Posts: 297
Default thanks

for the tip.

But I hope I don't have to do this anytime soon

Those bolts were hard enough to install.

Dave
-9A flying
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  #3  
Old 02-15-2011, 07:58 AM
Camillo Camillo is offline
 
Join Date: Sep 2006
Location: Roma, Italy
Posts: 510
Default

After having installed my wings on the fuselage, I decided that if I had to remove the wings, I will buy a new kit. Much quicker.
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Flight time: 1 hour
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Flight time: 350 hours
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  #4  
Old 02-15-2011, 09:38 PM
Av8torTom's Avatar
Av8torTom Av8torTom is offline
 
Join Date: Nov 2009
Location: Yardley, PA
Posts: 1,334
Default Yikes

good reason to get it painted first... :-)
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