Issue/Problem - front seat sagging
Solution/Fix
If your front seats are pulling away from the pleats, here is a set of pictures of one way to repair them.
Original seat bottom:
Removing the leather from the frame and then start to disassemble the seat. The side pleats are held down by a piece of cloth sewed to the leather.
Here is a closer look. There is a thick wire inserted in the bottom of this piece of cloth
The cloth/wire is attached to the foam at the bottom of the seat with hog rings. The foam is quite solid, but can break loose quite easily. Here is how it is attached.
The central section is composed of two pieces that are glued together.
Once separated you can see the top part has pieces of felt that are sewed to the leather and hold down the pleats.
Now you can see how the felt has pulled away and is no longer holding the pleats.
Gluing the felt back to the foam would probably not be strong enough (that is why they came apart in the first place). After some trial and error, I ended up lacing the pieces of felt together with thick thread. This allows the two pieces to be glued back together (contact cement) as they were before, but with some added strength with the felt pieces connected together
For the side connections, I added some supportive wire underneath to attach to the cloth/wire coming using hog rings.
Here is the final result with everything put back together.
