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

Vacuum lines on a '76

Thread Tools
 
Search this Thread
 
Old Jul 21, 2005 | 10:59 AM
  #1  
RocketSapp's Avatar
RocketSapp
Thread Starter
Pro
15 Year Member
 
Joined: Nov 2004
Posts: 677
Likes: 0
From: Frisco TX
Default Vacuum lines on a '76

I just got my '76 on Sat and working on it a little. I am going to replace the vacuum lines on the car becuase I either have a big leak or some lines ran to the wrong place. (prob both)

While I am waiting on the service manual to be shipped... Does anyone have a vacuum diagram that they could email me?

While I am waiting on that. There is one vacuum line that runs from the motor to the trans. It was mentioned at the Cruisers GTG this week (Frisco\Dallas Texas) that he thought the line needed to be to the intake and it's on the QudraJet right now. What is the proper place for it?

Tim
Reply
Old Jul 21, 2005 | 12:18 PM
  #2  
kona's Avatar
kona
Drifting
10 Year Member
 
Joined: Oct 2003
Posts: 1,330
Likes: 1
From: Kerrville Texas
Default

Try www.corvettefaq.com you will probably find it there.


Kona
Reply
Old Jul 21, 2005 | 12:57 PM
  #3  
ltlevil's Avatar
ltlevil
Burning Brakes
 
Joined: Apr 2004
Posts: 847
Likes: 0
From: Des Allemands LA
Default

The line your referring too I assume goes to the modulator valve on the transmission. It doesn't matter where it is hooked up as long as it has full vacuum and not ported vacuum. In other words it has vacuum present all the time instead of gradually increasing like the vacuum to the your distributor advance. Normally this line is hooked to the intake because you always hav full vacuum there.

Steve
Reply
Old Jul 21, 2005 | 02:36 PM
  #4  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Default

Intake manifold. There should be a port in the manifold to the right rear of the carb.
Reply
Old Jul 21, 2005 | 02:44 PM
  #5  
RocketSapp's Avatar
RocketSapp
Thread Starter
Pro
15 Year Member
 
Joined: Nov 2004
Posts: 677
Likes: 0
From: Frisco TX
Default

Originally Posted by ltlevil
The line your referring too I assume goes to the modulator valve on the transmission. It doesn't matter where it is hooked up as long as it has full vacuum and not ported vacuum. In other words it has vacuum present all the time instead of gradually increasing like the vacuum to the your distributor advance. Normally this line is hooked to the intake because you always hav full vacuum there.

Originally Posted by Easy Mike
Intake manifold. There should be a port in the manifold to the right rear of the carb.

Great.. Thanks guys, I will take a look when I get home.
Reply

Get notified of new replies

To Vacuum lines on a '76





All times are GMT -4. The time now is 09:32 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
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-8
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-9
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