That black crap would be engine oil, crusty and caked means it got hot...tends to happen with internal combustion engines though. Replace the PCV valve. If the engine cant vent the blowby gases then it'll stack up. Be like trying to breath in a cigar lounge after running a marathon. Not sure if the V6 has another vent hose like the 22R-Es have...but if there is another vent, be to your advantage to pull it and clean it out.
~Darin <img src="/forums/images/graemlins/baby.gif" alt="" />

88' 4x4 *22R-EB Gen II*
87' $Runner *22R-EB Gen I*
85' Sillyca 22R-Esq

"I LIVE IN MY OWN WORLD...THEY KNOW ME WELL THERE"