> 
> Can someone tell me exactly what the vents at the bottom of the front
> doors are for?  Should they be slid to the front or back to keep the air
> flowing or warm the bus up? 

Well, you ain't gonna like the answer to this...

 In NuBus ('82 Diesel), they do NOTHING. ABSOLUTELY NOTHING. I often
have the door apart due to a previous post (The window falling off track),
and have tried to trace what they do. They go nowhere. There are a hole
into the bottom of the door interior. No air passes through there (the
air passes through the top of the door, in a separate chamber.)

 My guess is that in a former life they did something, and it wasn't worth
the ECN to change the drawings. Right now, they allow you to "vent" the
moisture from inside the door. 

 Can anybody else attest to this, or have I been sucking too much sweet-
smelling diesel exhaust? (I went home for lunch and drove NuBus back. Smiling
all the way looking at the leaves change from the HUUUGE front windshield)

Matthew Drahzal
drahzal@convex.com