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Got started on drilling plug weld holes this evening, here laying out the hole patterns to align with the floor crossmember where possible...
http://i5.photobucket.com/albums/y16...5/IMG_2590.jpg
Once drilled to match our piloted burnishing brush, the paint surrounding the plug weld gets cleaned to prevent weld contamination..
https://www.youtube.com/watch?v=ELG55mmG2I0
http://i5.photobucket.com/albums/y16...5/IMG_2593.jpg
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In removing the section of foam on the seat back we find the cushion has a wire around the arm rest void. As we are removing the arm rest altogether (when it gets reupholstered) we removed the wire..
http://i5.photobucket.com/albums/y16...5/IMG_2732.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2733.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2734.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2736.jpg
The previous pivot for the seats had a tapered pin hex bolt that secured into a hex nut that was welded onto the pivot bracket, which can be seen here:
http://i5.photobucket.com/albums/y16...5/IMG_2717.jpg
Due to our width constraints, we need to remove all that excess hardware.. So we chose to put the "securing nut" inside the seat, and use a simple pan head allen screw through the 12 gauge bracket.. Here's our Pivot "axle" inside the seat back..
http://i5.photobucket.com/albums/y16...5/IMG_2742.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2743.jpg
Here's the test fit of our 12 gauge steel pivot bracket. Radius was used on the bends to match the tube. The tube was originally round, and the side uprights were flattened out using the MH19 hammer to buy us some more clearance between wheel tubs..
http://i5.photobucket.com/albums/y16...5/IMG_2744.jpg
The bead shown on the bracket was done on the Lennox Nibbler.
This should give us a bit of clearance on the edges to help prevent binding of the upholstery.
http://i5.photobucket.com/albums/y16...5/IMG_2748.jpg
Bead turned out pretty well for 12 gauge steel! Some TIG welding to put the parts together:
http://i5.photobucket.com/albums/y16...5/IMG_2749.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2750.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2752.jpg
Video of it in operation:
https://www.youtube.com/watch?v=KCcpqbF1jUU
One part down, next we'll tackle the brackets to the floor.
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Back in the shop this evening, time to make some bolting brackets to hold the seat back frame to the floor..
http://i5.photobucket.com/albums/y16...5/IMG_2799.jpg
Locating...
http://i5.photobucket.com/albums/y16...5/IMG_2802.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2804.jpg
Brackets TIG welded on....
http://i5.photobucket.com/albums/y16...5/IMG_2808.jpg
This shows it in place, we have about 1/4" clearance at the tight spots....
https://www.youtube.com/watch?v=jB5qRfP7IxY
The cleco's were removed and 1/4-20 AVK rivet nuts installed in the floor... Missed that picture...
http://i5.photobucket.com/albums/y16...5/IMG_2817.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2818.jpg
Next will be the top support....
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Talk about "Content"! Wow! Your skills and attention to detail are superb Sir.
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Had a short evening in the shop as I was busy packing the neon clock for shipment, so the remainder was spent working on some of the many final details of the rear seat. Here are the factory seat clips to hold the seat bottom in place.
http://i5.photobucket.com/albums/y16...5/IMG_3149.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3150.jpg
In order to use these, let's do a sample and see if we cut a hole in some sheet metal that they'll fit into..
http://i5.photobucket.com/albums/y16...5/IMG_3145.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3146.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3147.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3148.jpg
This looks like it will work, we'll get some 18 gauge strips made to hold these that 45 down to the floor, adding some bead details for strength..
http://i5.photobucket.com/albums/y16...5/IMG_3151.jpg
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Time for some brackets for the rear seat bottom retainers. Cut out some 19 gauge...
http://i5.photobucket.com/albums/y16...5/IMG_3152.jpg
Drilled some holes for an inside radius, and trimmed the corners for the floor pan flange..
http://i5.photobucket.com/albums/y16...5/IMG_3154.jpg
Now to fold some flanges on the sides for strength, using the Diacro press brake and a 1/2" thick lower die. By adding some rare earth magnets to the back side to serve as a back stop, we get a perfect 1/4" flange...
http://i5.photobucket.com/albums/y16...5/IMG_3155.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3156.jpg
Then some back and forth between the Erco kick shrinker and the press brake with a narrow die inside the folds.... and we have 45* bends on either end of our brackets...
http://i5.photobucket.com/albums/y16...5/IMG_3157.jpg
Test fit.... and trimming the retainer hole...
http://i5.photobucket.com/albums/y16...5/IMG_3160.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3161.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3162.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3163.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3167.jpg
http://i5.photobucket.com/albums/y16...5/IMG_3169.jpg