Hi Chaffe !
One question I can only answer: I don't have any pressure readings at the moment
I will buy a pressure gauge and will check
When I made this diesel engine, the Covid epidemic situation increased, so my place was completely lockdown, I could only test the injectors and pump with the engine., I could only trial and error and do everything the best thing possible.
Until the epidemic situation showed signs of abating, I could only buy back a small copper pipe from a friend that he had left over, but I still couldn't buy a pressure gauge., again I can only test the injectors and pump with the my engine and based on my experience and judgment
Trial and error, adjust...... until the engine feels like it can "run"., and trial and error, adjust..... until the engine run
I can't watch your video