I think that the "B" is used in track laying and maintenance machinery. They picked up the market that was dominated in the '70's by the 2-Stroke Detroit Diesel engines such as the 3-53, 4-53 and 6V-53.
There is still a pile of rail equipment up here with 2-Stroke power. We rebuild a lot of them for the railroad as we are one of the few places left with the know-how to properly refresh them.
Was looking for the new Detroit commercial that we were shown in Vegas but can't find it. They must not have released it yet.
Here are a couple of DD15 Videos that you guys might enjoy.
High speed video from the assembly line robot's persective.
Detroit Engine Assembly - YouTube
Here is a longer one showing more of the plant.
The big CNC block milling machines that you will see use only water for lubrication.
They learned that oil would contaminate the waste and it could not be recycled. The water allows them to recycle the waste very easily.
Engine assembly starts a about the 2. 25 mark.
Also, the engines that you see running in the room with the engineers are hooked to generators. That way the power generated goes right back into the plant's power grid. Some of those test engines will run for months in there.
Detroit Plant And Engine Quality - YouTube
If you are ever invited to a plant tour, go. You will be impressed.
Mike.
