The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board > The 1973 - 1991 Blazers, Jimmys, and Suburbans Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-02-2008, 07:22 AM   #1
Jo Suburban
Registered User
 
Jo Suburban's Avatar
 
Join Date: Apr 2008
Location: spijkenisse netherlands
Posts: 10
Chevy Suburban 1978

So I have a question!

Can anyone tell me what this is (see pictures) and if it is possible to remove it from the engine/exhaust?

Greetz Jo









__________________
Chevrolet suburban 1978 454 Trailering Special
Jo Suburban is offline   Reply With Quote
Old 10-02-2008, 09:17 AM   #2
eaglelox
Member Dude
 
eaglelox's Avatar
 
Join Date: Aug 2003
Location: reno,nv,usa
Posts: 191
Re: Chevy Suburban 1978

second pick is a temp controlled vacuum lines i think. dont have that stuf in my burb. not sure about the first pick, maybe a vent or some kind of smog crap.
__________________
Steve

1978 K20 Burb, 4" lift, 33's, 350
Eaglelox@Hotmail.com
eaglelox is offline   Reply With Quote
Old 10-02-2008, 11:28 AM   #3
Bad Karma
Magnificent bastard
 
Bad Karma's Avatar
 
Join Date: Oct 2004
Location: Glendale, AZ
Posts: 196
Re: Chevy Suburban 1978

Last pic is the thermo-controlled vacuum valve. It's supposed to block vacuum to the distributor when the engine is cold.

First two pics, I have never seen that thing before... Where does the other end go to? Fuel tank or transmission, maybe?
__________________
1977 Big Block Burb
Bad Karma is offline   Reply With Quote
Old 10-02-2008, 11:39 AM   #4
wedgemon
Registered User
 
wedgemon's Avatar
 
Join Date: Jul 2004
Location: Spanish Springs, NV
Posts: 1,171
Re: Chevy Suburban 1978

I took both off my 80. No problems.

First pic is an EFE valve. Emissions item designed to route exhaust gases to the base of the carb.

- Dave
__________________
2003 Silverado K1500 Z71 - Arrival Blue
1973 K5 Cheyenne Blazer 350/TH350/NP203
Kids Trucks:92 K1500 Blazer 5.7/700R4 4" lift.

RETIRED: 1980 Scottsdale 4x4

Founding Member:
"TILT WHEEL BELLY." Club
wedgemon is offline   Reply With Quote
Old 10-02-2008, 12:09 PM   #5
tvblazer78
Low & Fast!
 
tvblazer78's Avatar
 
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
Re: Chevy Suburban 1978

Quote:
Originally Posted by wedgemon View Post
I took both off my 80. No problems.

First pic is an EFE valve. Emissions item designed to route exhaust gases to the base of the carb.

- Dave
And to heat your motor up faster when it's cold...
tvblazer78 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:17 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com