I'm in the process of fixing up a Lachenal tutor EC that I bought off eBay. So far, I've replaced about half the valves (the ones that were stiffest or most curled), replaced one pad (that was misaligned to begin with and wasn't sealing at all), patched a few small holes in the bellows, and reglued one of the pillars that had come loose. I've been doing all this a bit at a time, which means I've removed and replaced the ends several times. The chamois gasket was worn very thin when I got it, and doesn't seem like it will last much longer. It still seems to be making a reasonably good seal, but I don't know how much more "roughing up" it can take. So I suppose I'll need to replace it at some point. I've been following Dave Elliott's maintenance manual, but this doesn't seem to be covered in there. And so I have questions.
1. I gather from other threads here that any old chamois will work, but thicker is better? Any particular thickness I should be aiming for?
2. How exactly do I do this? How do I figure out what size and shape to cut, how do I fit it into place, what kind of glue should I use, etc.? I've been looking around for instructions, but haven't found any. I guess it might be easy to figure out, but I don't want to take the old gasket off only to realize that I have no idea what I'm doing.
3. The chamois strips along the partitions between the reed chambers seem to be in good condition, but it looks like if I replace the worn-out outer gasket with something thicker, the inner strips will no longer be high enough to make a good seal. Is that a reasonable suspicion? What do I do if that happens?
4. Anything else I need to be careful about?
Thanks in advance for your help.