I will have to modify the internal oil lines a bit before I can run the bike, last night I tested the preheat and spooled the engine up to starting revs with full oil pressure and when I opened the engine cover drain almost 10cl of oil poured out. Yet another leakage in the damn banjo couplings for the journal bearings...
Believe it or not but I am glad that it happened, because now I have a reason to tear the engine down and redesign the whole internal oil line arrangement. I could never torque the banjo bolts properly due to the assumed weak threads in the cast aluminum housing. Here is an old pic that shows what it looks like.
Another good thing is that I got a chance to find out if I could remove the gas producer from the frame without having to take away the gearbox or air intake first, it was tight but doable so now I know that field repairs can be done relatively easy.
While I removed the gas producer I filled the starting tank with the scuba compressor I inherited prematurely from my father, it wouldn´t hurt to overhaul the valves but I still got the tank up to 180bar which is close enough to the 200bar it is classified for.
After a short while the JU-01 was resting on the work bench, this will hopefully be the last time I have an oil leak inside it.
I called it a night after I had removed the engine cover, I am looking forward to figure out how to do this.
Cheers!
/Anders