Darn loose VCs
Yeah, probably (I would hope anyway) loose VC bolts. Mine were So loose, I was able to turn some a couple turns by hand! Once I tightened mine, cleaned up the oil i could w/gunk, it took several weeks before the smell of burnt oil on the exhaust finally went away but it did, that was almost 3 yrs ago now, so I'd try just tightening for now-consider removing each bolt and putting some loctite on to help keep em tight. I re-torque em annually btw. Luck. :banana: