Stan Wilder wrote:

I;ve never gotten my fresh air vents to close properly.

The solution, when it starts getting cold. Remove the headligh grill
assembly and put a piece of tape over the intake area.

I use the 2" foil tape that is used in Airconditioning duct sealing.
Masking tape dries and really makes a mess, duct tape is way to nasty
(leaves white adhesive when you remove it).

Stan Wilder
83 Westfalia air-cooled
wilden1@juno.com