Bad news on the E-25..
The tracks were painted and weathered.
I had the same problem years ago on the first E-25 I build, the sprocket wheels are too close to the hull bottom and the first drive wheel. There is almost no space for the track.
Also the length of the track is too short when the idler and sprocket wheels are in place, so as you can imagine.. disaster happened.
I had to do some cosmetic surgery on the spot otherwise I could have a mad rage attack and scraped (again) the E-25...
Also the idler wheel arm broke off again... so here I rotate it a bit causing the idler wheel to be a few mm near the first wheel and under much less pressure .
It worked. it looks a bit odd because on the other side I left the idler arm as it should.
Problem nº2.. the sprocket wheels.
On both sides they don't fit on the sprocket hole, I had to sand down the cylindrical shape into a conical shape and enlarge the hole.. it doesn't fit very well . This was done on the same side that had the idler surgery...
On the other side I had to eat some cannolis and be more creative.. and cut cylindrical shape off the sprocket wheel and inserted some metal rope folded (from the KV Trumpeter..) added some CA glue and inserted this metal soft shape into the sprocket hole.
I'll let it dry and tomorrow I'll do some damage control.