----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Has anyone disassembled a rear beam assembly?
I am getting a set of wings ready for recover. One of the wings has corrosion in the rear beam assembly. The corrosion at this time is surface. However, I am finding white powder between all the riveted seams. The rear beam is made up of a large "J" shaped piece that the ribs are riveted to. This is reinforced with a "U" shaped piece that has large lightening holes pressed into it. The corrosion primarily involves the "U" shaped piece with the lightening holes, and the seams where it is riveted to the "J" shaped piece. I am considering removing the "U" shaped piece in order to treat all the corrosion. This will soften the structure somewhat. Will it soften it enough to require jigging the wing???? I "THINK" that the wing will be sufficiently stiff due to the fact that the ribs will still be attached to the large "J" shaped piece. Also, since the "U" shaped piece will be put back using all the original rivet holes, and misalignment will be removed when this piece is put back. I am also fishing for recommendations for what brand of corrosion treatment to use upon reassembly. Since the fabric is cemented to the structure at the rear beam, what ever is used cannot damage the fabric bond to the structure. Unfortunately, this area is one that is not visible until the wing is taken apart. In this case, the pitot and static lines exiting the wing allowed an opening for mud and moisture to enter. However, there is nowhere for the moisture to go once it is there and the corrosion resulted. A few more years and the rear beam would have been unserviceable. There are no repair parts listed for the beam, just the entire assembly for over $900. If you have taken this rear beam apart, I would surely like to hear about your experience. Thanks Paul N2273H --------------------------------- to unsubscribe send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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