Denny,You crack me up with your title, Big Bang Theory,but I see why the title after reading.
I sure wish those things didn't happen, but over the years since I've been wrenching and that started back in the early 60's, I've had machines do some strange things. A cough, a sputter,a loud pop,
or some other unexplainable short term event.
Like this Allis tractor I've got which runs like a stop watch 99.9 percent of the time, then all of a sudden it sounds like its running on 31/2 cyl.out of four. That will last for 10-30 sec. and its back to normal. I've checked everything and come up empty.
So now I just blow it off and live with it cause I don't have that much time to spend looking for this.
That's mainly because I have more than eleven more machines to keep running.
I understand your concern and I would feel the same as you do because I hate it when something ain't running right. People say I'm a bit of a perfectionist, I prefer to think of it as I just wanting it done right and running right.
When I was a kid my Gramps once said to me...A job worth doing is worth doing right. That stuck in my head for some reason.
Now back to your problem,I don't have the answer but I will be thinking about it and what I've said was only to ease your frustration over what happened to the Valdez. Sorry, you came up with that name, but I don't like the name. Hey, can't you call it your tinkle toy ! Cause it tinkles on your floor a little.
I sure hope you find the reason for this and let us know.
Oh, one more thing, I enjoy reading what you have to say. Hope you have another good sunny day.
Dan