OK, this 850 NA sucks gas, so first thing I check after searching around is the airbox thermostat. Mine is stuck in partially hot, partially cold with no vacuum, but with vacuum it's full hot. Can't find much info on this version, thought I would take apart a put in a dowel or something to keep flap on full cold air. Problem is can't get it apart, even though it looks like it comes apart. Any suggestions?
For the time being I'll leave the hot air duct from exhaust manifold off and disconnect/plug vac line to the airbox vacuum motor. What a pain....
Thanks. Mike
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