C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

76 Windshield Defroster

Thread Tools
 
Search this Thread
 
Old Jan 16, 2012 | 10:44 AM
  #1  
hgoodwiniii's Avatar
hgoodwiniii
Thread Starter
Burning Brakes
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2002
Posts: 1,009
Likes: 62
From: Houston Tx
Default 76 Windshield Defroster

Hi we are starting to put interior back together for 76 and noticed a gap between the duct that sits right below the dash pad that directs air defroster air to the windshield and the duct that provides air from the bottom at it's base. The gap is about 3 inches. I'm trying to determine if the gap should be there or if we are missing a connector part? Any ideas? Thanks.
Reply
Old Jan 16, 2012 | 12:14 PM
  #2  
blckslvr79's Avatar
blckslvr79
Drifting
 
Joined: Jan 2008
Posts: 1,962
Likes: 5
From: Schererville IN
Default

I'd say you are missing something.
Been too long since I had mine apart to tell you what though.
Reply
Old Jan 16, 2012 | 03:41 PM
  #3  
dembo's Avatar
dembo
Burning Brakes
10 Year Member
 
Joined: May 2007
Posts: 1,022
Likes: 33
From: Lokeren, Belgium
Default

3" is alot. I don.t have a close up pic, but the gap on mine was about 1/2" max. I tried several ducts and they where all about the same. Not much moving around possible so closed it with alu tape ...
Nick
Reply
Old Jan 16, 2012 | 08:06 PM
  #4  
hgoodwiniii's Avatar
hgoodwiniii
Thread Starter
Burning Brakes
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2002
Posts: 1,009
Likes: 62
From: Houston Tx
Default

I thought mine was wider but it's is actually about a 1/2 in.m as well. I will tape it down with aluminium tape, too. I did crank the car and run the defroster and air does flow there even though that gap exists. Interesting! I'm assuming any hardware store should have the tape? Thanks.
Reply
Old Jan 16, 2012 | 09:56 PM
  #5  
Willcox Corvette's Avatar
0Willcox Corvette
Former Vendor
 
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

1/2" Gap is normal.. hate to say it.. Dembo's solution is a great mod for a better defrost...
Reply
Old Jan 17, 2012 | 10:09 PM
  #6  
hgoodwiniii's Avatar
hgoodwiniii
Thread Starter
Burning Brakes
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2002
Posts: 1,009
Likes: 62
From: Houston Tx
Default

I read the owner's manual again and seems the gap was left there on purpose. The manual says (page 2-19 under "DEF") "If the control is positioned between "HTR" and "DEF", air flow is divided between floor and defroster outlets. Perhaps this is the route for floor heater air to travel? Who knows. I'll decide what to do in the am. Thanks.
Reply
Old Jan 18, 2012 | 09:47 AM
  #7  
jcloving's Avatar
jcloving
Burning Brakes
10 Year Member
 
Joined: Dec 2010
Posts: 945
Likes: 10
From: Winston Salem NC
Default

Mine had a half inch gap. I used aluminum tape to seal it up. Now it works well....not that I will ever need it.
Reply

Get notified of new replies

To 76 Windshield Defroster





All times are GMT -4. The time now is 05:56 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE