Old photo I took from the Jolly page but could not find it again. I Posted here to save for future reference.
Here’s one used in a boat application.
https://67-72chevytrucks.com/vboard/...d.php?t=501413
Quote from Alanorion:
“Just an update after using the engine for 18 months in the boat. It has been
totally reliable it has not used any oil it starts first time every time with instant
excellent oil pressure. As I said before I found a local supply for parts and I now
Know of an engineer who has experience of these engines. They were used in
the mining industry for various stationary and heavy machinery use. Of course
there is no chance of over revving the engine in a marine installation as the
propeller size limits the revs in my case to 2500 revs relying on the torque of
the engine and not the BHP. In all I am delighted with the engine and its
performance”
A video on one Listed as a Cummins DT478
https://youtu.be/YZdVILqKwy4