Dear Tom and Ray,
I am amazed how you can give the right advice for the wrong part, as demonstrated by Kaddisy’s choke problem on her 85/86 Nissan. Based upon my experience with a 1971 Datsun P.U., she was fooling with her warm/cold air blend valve, which closes to pull warm air from a shield on her exhaust manifold. It would rattle off and its screws end up in the air cleaner, just as she described. It would make the truck run a little rough in cold (Beautiful Golden, Colorado) weather. Still your advice to put it together with lock-tight was the correct answer. Thanks, jkd