CorvetteForum - Chevrolet Corvette Forum Discussion

C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

What is this for?

Thread Tools
 
Search this Thread
 
Old Sep 5, 2020 | 08:00 PM
Share
  #1  
C3speedracer's Avatar
C3speedracer
Thread Starter
Intermediate
 
Joined: Aug 2020
Posts: 32
Likes: 24
From: Cameron NC
Default What is this for?
I was looking for the trip odometer reset and found it but also found this push pull button/****. Can anyone tell me what it is? Thanks in advance for the help. 77 L48 A/C car
Reply
0
Old Sep 5, 2020 | 08:32 PM
Share
  #2  
Tooch1's Avatar
Tooch1
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2013
Posts: 1,113
Likes: 520
From: McClellandtown, Pa.
Default
It's your headlight switch bypass. It will open/ close your headlight doors without using your switch. However, your lights won't come on...... Pull it...see if it works
Last edited by Tooch1; Sep 5, 2020 at 08:35 PM.
Reply
1
Old Sep 5, 2020 | 09:15 PM
Share
  #3  
C3speedracer's Avatar
C3speedracer
Thread Starter
Intermediate
 
Joined: Aug 2020
Posts: 32
Likes: 24
From: Cameron NC
Default
Ok cool, thanks
Reply
0
Old Sep 5, 2020 | 09:56 PM
Share
  #4  
wer2xu's Avatar
wer2xu
Burning Brakes
10 Year Member
 
Joined: May 2008
Posts: 1,165
Likes: 24
From: Boston MA
Default
Should he have the electrical override for the wipers?
Reply
0
Old Sep 5, 2020 | 10:02 PM
Share
  #5  
Tooch1's Avatar
Tooch1
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2013
Posts: 1,113
Likes: 520
From: McClellandtown, Pa.
Default
Originally Posted by wer2xu
Should he have the electrical override for the wipers?
No, that stopped in 72. The last year for the vacuum operated wiper door. 73 and later vettes have the longer Hood.
Last edited by Tooch1; Sep 5, 2020 at 10:03 PM.
Reply
0
Old Sep 5, 2020 | 10:04 PM
Share
  #6  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default
That is the "Mouthy Passenger Ejection Seat ****".

Should be a decal there that states:
Caution. Do Not Activate With T-Tops In Place.
Reply
0
Old Sep 6, 2020 | 01:19 AM
Share
  #7  
Bikespace's Avatar
Bikespace
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2017
Posts: 11,923
Likes: 4,495
From: Virginia
Default
Originally Posted by HeadsU.P.
That is the "Mouthy Passenger Ejection Seat ****".

Should be a decal there that states:
Caution. Do Not Activate With T-Tops In Place.
If only. There'd be a surplus of driver-side glass T-Tops if that were the case.
Reply
0
Old Sep 6, 2020 | 07:10 AM
Share
  #8  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Default
FWIW: order a 77 owner's manual and read through it when it arrives.
Reply
0
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Sep 10, 2020 | 05:01 PM
Share
  #9  
JesterJim's Avatar
JesterJim
Cruising
 
Joined: Jun 2020
Posts: 11
Likes: 1
From: Elk River, MN
Default
My '78 has the same ****. Do you just pull straight down and does the engine need to be running? I didn't want to pull too hard and damage something.
Reply
0
Old Sep 10, 2020 | 06:34 PM
Share
  #10  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,334
From: North of Toronto - Ontario
Default
Straight down, should be fairly easy to pull and the engine needs to be running (or the vacuum canister already charged and not leaking) since the headlights need the vacuum to go up/down. If you pull it with no vacuum nothing happens, no harm, no foul
M
Reply
0
Old Sep 14, 2020 | 10:00 AM
Share
  #11  
JesterJim's Avatar
JesterJim
Cruising
 
Joined: Jun 2020
Posts: 11
Likes: 1
From: Elk River, MN
Default
Thank you, that's worked perfectly.
Reply
0
Old Sep 14, 2020 | 11:35 AM
Share
  #12  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Default
It's purpose is for leaving headlamp buckets UP for changing out lamps or for leaving them UP in freezing/icy weather. The headlamps can freeze shut in such weather; best to leave them UP so you can still use them.

YES! That's what we did when these cars were year-around daily driver cars....
Reply
0

Get notified of new replies

To What is this for?

Back to Subforum
C3 General
View Next Unread
T Top repairs




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 04:50 PM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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