:-(. Very sad, but unfortunately this seems to be the fate of so many of these TnA engines.
I sourced (after several months of looking) the battery terminals for these which actually I was only ever able to get one side of but they work for both the (+) and (-). I would be more than happy to send you a few if you want to try the repairs? They are attached with brass rivets which are 3/32 x 5/32, here is an example:
https://rover.ebay.com/rover/0/0/0?mpre=...1273399030
Getting them attached can be a bit of a pain unless you can make a press to make it easier. I had planned to do this but it fell by the wayside. I have a diagram for the wiring which may be in the threads if not I can send it to you or post it here (have to find it)
I sourced (after several months of looking) the battery terminals for these which actually I was only ever able to get one side of but they work for both the (+) and (-). I would be more than happy to send you a few if you want to try the repairs? They are attached with brass rivets which are 3/32 x 5/32, here is an example:
https://rover.ebay.com/rover/0/0/0?mpre=...1273399030
Getting them attached can be a bit of a pain unless you can make a press to make it easier. I had planned to do this but it fell by the wayside. I have a diagram for the wiring which may be in the threads if not I can send it to you or post it here (have to find it)