Good evening Dallas and G, thank for your responses on this MTH engine.
With the sounds the engine is making when it is powered up, I am thinking to myself there is something seriously wrong inside.
When the engine was running on the layout it ran for approximately 20 to 30 minutes before the failure occurred and the engine ran on my home layout before that.
There where no signs of any issues until the engine stopped dead inside of a tunnel (of course).
We where running the engine with DCS at the time and a Z4000 to power the TIU.
I realize I left this few sentences out on my original post.
I would think this much run time the battery, "if the battery was low", the battery would have charged back up and the engine would have continued to run.
Not sure if I am correct on that assumption or not ???
I did remove the tender shell to take a look and see if there was anything obvious or if I could smell if anything was over heated. I did not find anything visually wrong or smell anything as if it was overheated.
The battery in this tender has the appearance of 2 AA batteries wrapped together.
Less than having a issue with the tach tape coming off the flywheel when the engine was new, this engine has been trouble free till now.
Again thank you for your responses with this issue.
Have a good week !!!