I was wondering what springs (size) they use in the engines so I could buy replacements. If possible someone has an amazon listing they know of, of the springs that would be awesome!
What springs are you referring to IGot?
The ones usually found in most motors, the one that pushes the gear back when the engine is turned off.
Ohhhhh! I have many extras
I’m D-Real, I’ve Been A collector since 2011, and Remember: Anything’s Possible when you have DEDICATION
I don't recall anyone ever finding a source for the gearbox springs. Depending on which motor type there can be two different springs in there. Like D-Real mentions above, many collectors have accumulated extra parts over the years with old, damaged or not working trains especially those pesky springs which can easily be lost when opening a gearbox if one is not careful. You may want to check for broken or not working sales on ebay for the motor type you are looking for. Then you can start your own extra parts box with gears and springs.