Date: Tue, 8 Jun 2004 10:15:37 -0700
Reply-To: Doug in Calif <vanagon@ASTOUND.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Doug in Calif <vanagon@ASTOUND.NET>
Subject: Re: heater controls
Content-Type: text/plain; charset="Windows-1252"
Don,
The rear pillar vents only allow air to enter the engine compartment area,
They were used for the air cooled vanagon to pull fresh cool air into the engine compartment which had a rubber seal
To keep the hot discharge air from re entering the engine compartment. All air cooled vws and porsches have had a seal around the engine.
Now they serve the air box on the right and just pull in cool air on the left for the wbx engine.
Only way to vent is install the 88 on vents behind the windows.
Doug
----- Original Message -----
From: don spence
To: vanagon@GERRY.VANAGON.COM
Sent: Tuesday, June 08, 2004 9:56 AM
Subject: Re: heater controls
If the description below is accurate, what is the purpose of the rear
pillar vents?
So far we have only discussed how air ENTERS the vehicle. But of
course, no air can come IN unless air goes OUT. This is called
“flow-through ventilation” which all vehicles have to some degree.
Prior to 1988, if all windows were closed, the only way air could get
out was to exit through little exit vents located on the rear lower
corner of the front door interior panels. These are the plastic vent
assemblies with the little blue slide lever. These vents allowed air to
exit the interior. Sliding the lever toward the front of the vehicle
opens the vent, rearward closes it. On the leading edge of the doors,
in the door jam, there are three oval holes that open into this hollow
space of the door itself. As a Vanagon plows through the air, air flows
around the vehicle creating low-pressure zones near the front door jam
areas. VW engineers realized this and used this low pressure to suck
air out of the interior of the vehicle. Air flows from the inside of
the vehicle through the little vent at the rear end of the front doors,
through the hollow door itself, into the door jam area, and out of the
body gap between the front door and front quarter panel. Genius, you say
On Monday, June 7, 2004, at 07:40 PM, Automatic digest processor wrote:
> Subject: Re: heater controls
>
> If you Google it, you'll find:
>
> http://www.gowesty.com/flow-thru_ventilation.html and
> maybe others. M