Interior HVAC Plenum Part 2

These items when attached also hold the big metal insert into the plenum.

Here's a better view of the insulation tape I used to control condensate from the air con in the defrost passage.

And the heater/floor section. You can see it would just dribble out the floor vents if allowed to build up.

Evaporator support goes in next.

Next I installed the hose straps.

Originally they were up-side-down, this arrangement seemed to make a little more sense.

Next are the brackets to hold two vacuum servos on.

Now on those I had to use KL nuts because the servos wouldn't clear the acorn nut, but since the servos cover the KL nuts it doesn't matter.

Next was to install the defrost/floor (heat) mode door. In heat mode, you can either get heated outside air to the windscreen or floor. This is the door that selects that by allowing incoming air to the upper passage or the lower passage in this plenum.

It's hard to visualize this without the other mating plenum but the heated outside air is coming from straight in. The door just directs that air either up or down.

This is the defrost/floor(heat) mode door servo.

For the push on retainers I found these at McMaster.

More than you'll ever need at a reasonable price.

That's installed and adjusted. You adjust by sliding the servo on elongated mounting holes so the door goes all the way to the top of the plenum in default spring loaded position.

Next is the recirculation door. I just used generic aftermarket automotive grade sealing foam.

There's no reason to cover the entire door, the perimeter will do just fine.

Bolt that one back in.

The recirc door servo goes in next.

Continued in next post.