| Author |
Message |
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
|
 Posted: Thu Feb 25, 2016 7:29 pm Post subject: Front door vent |
 |
|
Maybe you guys know this, but it was a new discovery for me today.
I had always assumed the air that came out of the front door vents came from the channel through the doors.
That's not the case at all!
Air for those vents comes from slots in the front of each door, a ram air ventilation. The front doors are pressurized as you drive. I imagine this helps dry them out after rain storms, air is forced out the drain vents in the door bottom..... Or into the Van if you open the vent.
This photo shows light from a flashlight placed in the rear of the door illuminating the air intake slots at the front of the door.
Anyway..........
Life's little moments of excitement and discovery.......
Dave
_________________
Stop Dead Photo Links how to post photos
Ghia
http://www.thesamba.com/vw/forum/viewtopic.php?t=392473
Vanagon
http://www.thesamba.com/vw/forum/viewtopic.php?p=6315537#6315537
Beetle
https://www.thesamba.com/vw/forum/viewtopic.php?t=482968&highlight=74+super+vert
Last edited by djkeev on Thu Feb 25, 2016 8:14 pm; edited 1 time in total |
|
| Back to top |
|
 |
DwarfVader
Samba Member
Joined: July 28, 2015
Posts: 646
Location: Missoula, MT
|
| Posted: Thu Feb 25, 2016 8:05 pm Post subject: Re: Front door vent |
|
|
Learn something new every day and your life will be full...
Which is partly why The Samba is one of my favorite places... because I learn something new every day here, usually two or three things.
_________________
- oderint dum metuant -
I'll find my van someday, or it will find me. |
|
| Back to top |
|
|
kamzcab86
Samba Moderator
Joined: July 26, 2008
Posts: 7925
Location: Arizona
|
| Posted: Thu Feb 25, 2016 9:59 pm Post subject: Re: Front door vent |
|
|
GoWesty's more thorough explanation:
So far we have only discussed how air ENTERS the vehicle. 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 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. But what about the rear passengers, you say? And why, in 1988, did VW put a rubber seal at this body gap, thus blocking all airflow through it?
The flow through ventilation scheme completely changed and improved in 1988. This change coincided with the introduction of the switch from chrome (or black) steel bumpers to the fiberglass "big bumpers" and the accompanying front spoiler. In 1988 the rear-most side windows have an added vent along the rear edge. It was necessary to shorten the glass in order to make room for this vent as the opening in the body stayed the same. These vents are air EXIT vents.
Interestingly, the little grills on the front door panels remained, but if you remove them you will see the passageway behind them is sealed, and there is no blue slide lever. The seal at the door gap area was put there probably for reduced noise. I installed these seals on my 1987 Vanagon, and added the rear vents too. It actually lowered the wind noise a little, and the rear vents improved air flow inside the vehicle, especially for the rear passengers. And now I have the best of both worlds: improved flow-through ventilation and cool air from the dash vents! You can say you knew me when I was nobody…
http://www.gowesty.com/tech-article-details.php?id=83
_________________
~Kamz 
1986 Cabriolet: www.Cabby-Info.com
 1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子 |
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
avernon82
Samba Member
Joined: July 07, 2015
Posts: 292
Location: Richmond,CA
|
| Posted: Mon Mar 14, 2016 10:27 am Post subject: Re: Front door vent |
|
|
I added the rear window vents, but would really like to get the inner door seals. I'm guessing you need to remove the door to add them? any leads on where to get a pair?
slightly off topic, any way to remove the doors without cutting the cabling? |
|
| Back to top |
|
|
macjack
Samba Member
Joined: February 26, 2004
Posts: 357
Location: Colorado
|
| Posted: Mon Mar 14, 2016 10:49 am Post subject: Re: Front door vent |
|
|
| djkeev wrote: |
Ha!
Typical guy thing..... "If all else fails...... Read the directions!" 
Lower right corner........
Dave |
Doesn't this manual mistakenly identify the outside air vent as "B" when it should be "D" under "outside air ventilation", third column?
-macjack
_________________
87 TDI Syncro Westy
81 Westy (sold)
80 Rabbit Wolfsburg (rolled)
Bike as primary transportation |
|
| Back to top |
|
|
dobryan
Samba Member
Joined: March 24, 2006
Posts: 16505
Location: Brookeville, MD
|
|
| Back to top |
|
|
macjack
Samba Member
Joined: February 26, 2004
Posts: 357
Location: Colorado
|
| Posted: Mon Mar 14, 2016 11:45 am Post subject: Re: Front door vent |
|
|
| dobryan wrote: |
Lever D is for the outlets in the rear area above the sliding door, not the dash, AFAIK, at least it is on my '87.  |
wow. I just had one of "life's little moments of excitement and discovery"! For me it is 12:44 pm, so not quite the early bird as djkeev.
_________________
87 TDI Syncro Westy
81 Westy (sold)
80 Rabbit Wolfsburg (rolled)
Bike as primary transportation |
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32632
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
MsTaboo
Samba Member
Joined: June 02, 2006
Posts: 4098
Location: East Kootenay, British Columbia
|
| Posted: Mon Mar 14, 2016 1:06 pm Post subject: Re: Front door vent |
|
|
| avernon82 wrote: |
| I added the rear window vents, but would really like to get the inner door seals. I'm guessing you need to remove the door to add them? any leads on where to get a pair? |
Unfortunately the only way to get those inner door/body seals (the middle pair w/metal shown in Dave's photo above) is to get some from a wrecked van. Which is too bad, as they reduce airflow noise significantly!
And yes you need to remove the doors to get at them. (they actually mount to the body, not the door)
Would be really nice if VW Classic were to make these available!
_________________
Currently:
'90 Syncro Westy 3 knob w/Zetec
The information age has morphed into the age of disinformation and willful ignorance. Agnotology!
Help the fight against Truth Decay.
Defend democracy, support Ukraine. |
|
| Back to top |
|
|
avernon82
Samba Member
Joined: July 07, 2015
Posts: 292
Location: Richmond,CA
|
| Posted: Thu Apr 14, 2016 7:37 pm Post subject: Re: Front door vent |
|
|
Ok, got the seals from someone on thesamba classified. Not cheap, i think I paid $60.
Now how to mount them up? I've looked through the Bentley and didn't find anything
Do I have to drill holes? |
|
| Back to top |
|
|
[email protected]
Samba Member
Joined: April 29, 2015
Posts: 704
Location: Berkeley Ca
|
| Posted: Fri Apr 15, 2016 7:02 am Post subject: Re: Front door vent |
|
|
| avernon82 wrote: |
Ok, got the seals from someone on thesamba classified. Not cheap, i think I paid $60.
Now how to mount them up? I've looked through the Bentley and didn't find anything
Do I have to drill holes? |
Me too, any pictures of them mounted? Thanks in advance. |
|
| Back to top |
|
|
spitsnrovers
Samba Member
Joined: December 17, 2005
Posts: 925
Location: Calgary, Canada
|
| Posted: Fri Apr 15, 2016 8:31 am Post subject: Re: Front door vent |
|
|
On my '88 Westfalia which had those seals originally - when I replaced them after a paint job, there were holes in the A pillar to put the screws into.
Therefore, I assume if your van did not originally have these seals, you will have to drill holes. Unless of course VW had the foresight to predrill them for you 
_________________
'88 VW Westfalia
'75 Triumph Spitfire 1500 |
|
| Back to top |
|
|
narendra.vw
Samba Member
Joined: February 07, 2013
Posts: 440
Location: Bangalore India
|
| Posted: Fri Apr 15, 2016 8:31 am Post subject: Re: Front door vent |
|
|
As said above, is not in my case. The door vents has metal duct in line with the door(door inside) & connects to the pillar. Through the Pillar air goes up & enters the top inside side channel which have few vents on each side.
The air comes from the Dash blower. The air temp is as selected (hot or room temp).
This is done to circulate air through out the van. |
|
| Back to top |
|
|
Tom Powell
Samba Member
Joined: December 01, 2005
Posts: 4855
Location: Kaneohe
|
| Posted: Fri Apr 15, 2016 11:55 am Post subject: Re: Front door vent |
|
|
Some questions:
After reading this I will now assume that I can get the maximum flow of fresh air to my face in my '87 Vanagon by opening both the Dashboard vents and the door panel vents. If I open lever #3 to get fresh air to my feet will I lose some volume of fresh air to my face? If I open lever#4 will I get air for the rear, but lose a volume of air to the front? Or, will I get the maximum possible volume of fresh with the dashboard vents, the door panel vents, and levers #3 and #4 open? I assume that the answer to these will depend on the design, plumbing, and volume of the air distribution box.
Aloha
tp |
|
| Back to top |
|
|
What2do
Samba Member
Joined: March 19, 2016
Posts: 33
Location: Salisbury, UK
|
|
| Back to top |
|
|
What2do
Samba Member
Joined: March 19, 2016
Posts: 33
Location: Salisbury, UK
|
|
| Back to top |
|
|
|
