I assume is either uneven tightness on the screws or being too gentle as the screws hasn't fully tighten, or the large black o-ring hasn't seat correctly.
Just my 2 cents, hope this help.
Originally Posted by
silvalis
I actually just rebuilt it to check it, as I had it sitting around for 3 weeks and noticed that the rear belt was completely lubed up (and the insides almost dry).
I suspect it was coming out through both, as previously i noticed the teeth completely lubed up and earlier i found the plate where the screw heads are lubed as well.
Anyway it's been 24 hrs and no signs of leaking, so maybe I got lucky this time.
I'll still get some green slime anyway I guess.