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914/4: 70 71 72 73 74 75 76 914/6: 70 71 72

> Little Things I've Noticed, CW Authenticity
McMark
post Oct 20 2005, 05:46 PM
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This thread is for things I've noticed as I restore these cars. Just little concourse weenie tid bits here and there. Some things may be incorrect, but I stive for accuracy as much as possible. I'll be adding to this thread over time. So, without further ado...
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eric9144
post Sep 21 2011, 09:10 PM
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The vents aren't really for air flow in the sense of your vents on the dash, in fact not like that at all...

Ever been on the roof of a house? There's some odd ball small diameter pipes that come up through the roof above each bathroom...the vents are for your drains and they allow air to flow freely so when you flush you don't get the gurgling of air as it passes the fluids in the pipes...the vent allows air to draw in under the vacuum of the flush and keep the pressure neutral.

The 914 vent tubes serve a similar purpose (in theory at least)...they balance the air pressure between two places (outside/inside), as air draws into the cabin via the vents in the front around the dash, it is drawn to the vents at the back of the firewall pad and out the vent tubes...
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SirAndy
post Sep 22 2011, 12:35 PM
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QUOTE(eric9144 @ Sep 21 2011, 08:10 PM) *
The 914 vent tubes serve a similar purpose (in theory at least)...they balance the air pressure between two places (outside/inside), as air draws into the cabin via the vents in the front around the dash, it is drawn to the vents at the back of the firewall pad and out the vent tubes...

(IMG:style_emoticons/default/agree.gif)

Air flowing by the door gap is enough to draw a small amount of air from the inside through the tubes, thus helping the airflow inside the cabin.

(IMG:style_emoticons/default/popcorn[1].gif)
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Posts in this topic
McMark   Little Things I've Noticed   Oct 20 2005, 05:46 PM
McMark   The door striker plates on a 70 914-6 were found t...   Oct 20 2005, 05:47 PM
6freak   The door striker plates on a 70 914-6 were found ...   Sep 29 2011, 07:30 AM
McMark   Similarly, all three mounting bolts for the seat b...   Oct 20 2005, 05:51 PM
SirAndy   How about the fact that the front top shock towers...   Oct 20 2005, 11:02 PM
1970 Neun vierzehn   Hmmmmm. And this thread had so much potential;resp...   Sep 21 2011, 07:02 PM
PanelBilly   Allows air to excape betweeen the inner and outer ...   Sep 21 2011, 08:26 PM
eric9144   The vents aren't really for air flow in the se...   Sep 21 2011, 09:10 PM
SirAndy   The 914 vent tubes serve a similar purpose (in the...   Sep 22 2011, 12:35 PM
9146986   They also prevent your ears from popping whenever ...   Sep 22 2011, 08:33 AM
Jeff Bowlsby   http://bowlsby.net/914/Classic/zTN_Gen_ST71-24.jpg...   Sep 22 2011, 02:05 PM
Pat Garvey   http://bowlsby.net/914/Classic/zTN_Gen_ST71-24.jp...   Sep 25 2011, 07:36 PM
Pat Garvey   [quote name='Jeff Bowlsby' post='1542813' date='S...   Sep 27 2011, 07:26 PM
Jasfsmith   [quote name='Jeff Bowlsby' post='1542813' date='...   Oct 1 2011, 06:18 AM
Pat Garvey   [quote name='Pat Garvey' post='1545438' date='Sep...   Nov 14 2011, 07:55 PM
dlestep   ...when I had my '73, I noticed that all of my...   Sep 28 2011, 07:34 AM
dlestep   ...on the serious side, my '73 had two black p...   Sep 28 2011, 07:43 AM
SirAndy   I have heard no one talk about those vent lines. T...   Sep 28 2011, 11:10 AM
dlestep   I have heard no one talk about those vent lines. ...   Sep 28 2011, 03:11 PM
rjames   My '75 has 'em. :)   Sep 28 2011, 03:28 PM
rdauenhauer   Here one from the obscure barrel, on most early do...   Nov 13 2011, 10:24 PM
nathansnathan   I was talking to a guy at the G&R swapmeet, NL...   Nov 22 2011, 04:16 PM
eric9144   Early cars, 6 and 4, did not have the vents at the...   Nov 22 2011, 04:28 PM
nathansnathan   I think the vent in the dash is instead of the out...   Nov 22 2011, 04:44 PM
nathansnathan   What I mean is, there may be a reason there are no...   Nov 22 2011, 04:47 PM
1970 Neun vierzehn   What I mean is, there may be a reason there are n...   Nov 23 2011, 08:50 PM
davep   To keep nasty insects out. Did YOU want a wasp nes...   Nov 24 2011, 07:04 PM


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