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

Can you recognize this part/line?

Thread Tools
 
Search this Thread
 
Old Apr 2, 2018 | 12:36 PM
  #1  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default Can you recognize this part/line?

1970 454 Auto Transmission

The only line I did not label when I removed the engine and auto transmission 2 years ago. I want to replace the rubber parts, so can any one identify it so I can order?

Kind regards
Paul
Attached Images  
Reply
Old Apr 2, 2018 | 12:45 PM
  #2  
speedreed8's Avatar
speedreed8
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2006
Posts: 2,417
Likes: 336
From: Texas
Default

Vacuum modulator line from manifold to transmission
Reply
Old Apr 2, 2018 | 01:00 PM
  #3  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default

Many thanks CF

Kind regards
Paul
Reply
Old Apr 2, 2018 | 01:27 PM
  #4  
USAFVeteran's Avatar
USAFVeteran
Racer
 
Joined: Apr 2016
Posts: 493
Likes: 65
Default

Originally Posted by PBCloud
Many thanks CF

Kind regards
Paul

I also concur, just had to do mine
Reply
Old Apr 2, 2018 | 01:35 PM
  #5  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
Default

Make sure you get proper vacuum hose and not just regular hose.

Check the ends on the steel line, should look vaguely like this



The rubber line down at the transmission has a 90 deg bend formed in it, can't really take a straight line and bend it as it will kink closed.





M
Reply
Old Apr 3, 2018 | 03:36 AM
  #6  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default

Originally Posted by Mooser
Make sure you get proper vacuum hose and not just regular hose.

Check the ends on the steel line, should look vaguely like this



The rubber line down at the transmission has a 90 deg bend formed in it, can't really take a straight line and bend it as it will kink closed.





M
Many thanks Guys.
Reply
Old Apr 3, 2018 | 03:37 AM
  #7  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default

That is very clear many thanks for your responses.

Kind regards
Paul
Reply
Old Apr 3, 2018 | 10:27 AM
  #8  
imariver's Avatar
imariver
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2008
Posts: 1,873
Likes: 27
From: Sonora CA
Default

Speaking of vacuum modulator lines . . . .
Is there any purpose for the top end of the steel line to be reduced in size, (two times) like it is?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Apr 3, 2018 | 06:19 PM
  #9  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
Default

All things being equal it will react to a change in the vacuum faster than if the pipe was all the same size.
It also makes the rubber hose fit nicer
M
Reply
Old Apr 3, 2018 | 06:34 PM
  #10  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
Default

Double posted again Arrrrggg
M

Last edited by Mooser; Apr 3, 2018 at 06:35 PM.
Reply

Get notified of new replies

To Can you recognize this part/line?





All times are GMT -4. The time now is 02:00 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