Webb (MORI MS clone) automoatic oiler not working

So I just got done taking apart and cleaning and lubing my cross slide and compound and I adjusted gibs and backlash so now the lathe handles really nice. In taking everything apart, I realized the automatic oiler isn't working. I tried cleaning the oil output hole with pipe cleaner, but I think there is either a really solid blockage or a bend in the pathway, because I get about 6-7" of pipe cleaner in there and hit a wall I can't get past. Interestingly, if I load that hole up with solvent (which I did) and I operate the cairrage wheel, it will squirt the solvent out. So it seems it's building pressure, but not able to suck the oil up.

I'm looking for any advice for how to service this system.