353 step repair in engine bay
#21
Charter Member #232
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Ok had about an hour or two to spend this evening, I cleaned out the area between the surfaces as best I could with Acetone and rags. I opted to go with the 5200 slow cure for this repair. This picture shows the gap that I had. That gap is not supposed to be there. The entire wood section of the bulkhead was moving free.
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Last edited by Audiofn; 04-19-2017 at 07:35 AM.
#22
Charter Member #232
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This first picture is the system that I came up with to pull the bulkhead back into place. I had to pull it up as well as back. It worked very well. Was able to close the gap down to about 1/16 of an inch from the factory location maybe even closer. I was having a ***** of a time getting it to close up all the way when I was dry running the process. When I started to clean out the space between I found some wire ties in there that were keeping it away. Got them out and all was good.
[ATTACH=CONFIG]566471[/ATTACH]
The next photos show the look after the 5200 had been pushed in and clamped. I used a puddy knife to smooth out the 5200 now so it was out of my way for the next step.[ATTACH=CONFIG]566473[/ATTACH]
[ATTACH=CONFIG]566472[/ATTACH]
[ATTACH=CONFIG]566471[/ATTACH]
The next photos show the look after the 5200 had been pushed in and clamped. I used a puddy knife to smooth out the 5200 now so it was out of my way for the next step.[ATTACH=CONFIG]566473[/ATTACH]
[ATTACH=CONFIG]566472[/ATTACH]
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Last edited by Audiofn; 04-19-2017 at 07:38 AM.
#25
Charter Member #232
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I have to wait 7 days for the 5200 to do a full cure then I will be able to start on the next step. I am going to build up the wood on the bottom with more plywood and bond it with either epoxy or 5200 so that it is thicker. Then I am going to use a piece of angle stock into the wood and the stringer with screws so that this should be MUCH stronger when done. If i was doing it at the factory I would have put blind nuts in the back side and all you would need was the angle stock. I don't have any access back there now so this is the best I could come up with.
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Last edited by Audiofn; 04-19-2017 at 07:45 AM.
#26
Charter Member #232
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Got a little more done today. After everything cured I finally had some time to get the brackets that I made installed. Well two of the 4 anyhow. There is one of these brackets on either side of the center. I held them in place with !/4 20 cap screws into the stringers and #12 screws into the bulkhead. I also used some 5200 for what I hope is a totally permanent fix.
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