I have an Onan genset (HDKAU), with an isolator bolt problem. One of bolts keeps falling out - it can't be tightened anymore, as it's skipping in whatever it's supposed to be screwed into.
Based on the parts manual, and visually inspecting what I could see (last time I had it out), the bolts are screwed into the flywheel housing (2) and into the oil pan (1). I ordered replacement for both, but as they have arrived, I see there are no threads at all in any of the holes that the bolts are supposed to go into.
I would really like to avoid having to remove the genset from the van it's in just to figure out what am I missing. And to figure out what's up with the female part, whatever it might be, I'd have also at least lift the engine block up (hence I don't have any actual pictures). All of this isn't at all a quick job, so I'm trying to have all the parts I might need on hand once I go in.
And neither the oil pan (the ear on the front left side):
show any parts that would receive the bolts.
So, what exactly are those bolts supposed to be screwed into?