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> For '66 there are two hoses that enter the air stream between the intake > and the air cleaner. The obvious one is from the crankcase vent to the > snoot of the air cleaner housing. The hose that's usually missing, and > which I expect you're referring to, enters the underside of the mixer > box -- the tin thing with the weighted flap inside. This draws warm air > from the right front heat exchanger to regulate intake air temperature. > You'll find a hose nipple for this under the tin at the top front of the > exchanger. The hose (I use flexible conduit) runs back through a pipe > under the right-side tin, which also helps warm the air. > > Steven Ayres, Prescott AZ > Editor, Flat Four Fetish Features > '66 KGhia 1600 (in process) > '64 KGhia 1500S (parts) > comwest@well.com Steve, I've been wondering about that tin box with the weighted flap ever since I got my car. Maybe you can answer a couple questions about this? Why would you want to add warm air to your motor in the summer? I thought the upper flap could be "clicked" open for warm air in the winter and kept closed in the summer. Why is the lower heated air hose flap weighted? I assume at higher RPM the fan would blow harder and lift the flap.. What kind of problems are there since I'm missing the warm air hose? It looks like the internal flap mechanism blocks some air flow at higher RPM... Peter Parker Portland, Oregon '66 Square; Phillip