I sent him an enquiring message and he confirmed my suspicions, it’s a spin on filter in place of the starter motor that’s plumbed into the sump plate reservoir.
What intrigues me is that when I was talking to Rick of Smedspeed when I was last over at his place he mentioned he’s stopped producing his oil reservoir kits as he thinks there’s issues with the oil not circulating, this would solve that problem I think?
Daniel.