Hullo Jim......that engine from the Kyles looks very much like an old
Gardner Inline 6........there were very few differences between the road version to the marinesed plant.....just a seawater intercooler & the gearbox of Fwd + Astern......without the gears
Slow revving.....1200 RPM max.....the road versions [with specified oil changes] were reported to last to
750,000 miles before any minor work was required
In the image to the right [stdb], appears to be a single cylinder engine with a large diameter flywheel....obviously an auxiliary although I am unsure for what?
Oh......the Bridge seems to suggest that the ships wheel was steered from behind or aft of the bridge proper