Carryfast I know you have a two stroke Detroit fetish, but you got to admit a Gardner made a lovely noise too, especially the 8 pot & they could match any two stroke for smoke on a cold morning 
As a piece of engineering a Gardner engine was about as good as it gets, just a shame the management team were so short sighted, who knows? If they had devoted the same degree of engineering to their turbo charged engines as they did the 4L, 5L, 6L & 8L series of engines, things would’ve been very different in the truck world today.