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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-17-2019, 02:06 PM   #1
Astro-Balls
Registered User
 
Astro-Balls's Avatar
 
Join Date: Feb 2019
Location: CA
Posts: 253
Vacuum Diagram

is this the correct vacuum diagram for a '68 BBC AC PB?
__________________
1968 C20 Fleetside 396 4sp PS PB AC CST
Palo Alto Auto Upholstery, 40 years. PaloAltoUpholstery.com
.
https://www.facebook.com/Palo-Alto-U...4668829916484/
.
https://www.youtube.com/watch?v=RWK8GgWD4uA
Astro-Balls is offline   Reply With Quote
Old 08-17-2019, 04:48 PM   #2
Astro-Balls
Registered User
 
Astro-Balls's Avatar
 
Join Date: Feb 2019
Location: CA
Posts: 253
Re: Vacuum Diagram

The Control Head Vacuum Switch on my truck has three ports, Need to know what goes where.... Help..
__________________
1968 C20 Fleetside 396 4sp PS PB AC CST
Palo Alto Auto Upholstery, 40 years. PaloAltoUpholstery.com
.
https://www.facebook.com/Palo-Alto-U...4668829916484/
.
https://www.youtube.com/watch?v=RWK8GgWD4uA
Astro-Balls is offline   Reply With Quote
Old 08-17-2019, 06:08 PM   #3
Astro-Balls
Registered User
 
Astro-Balls's Avatar
 
Join Date: Feb 2019
Location: CA
Posts: 253
Re: Vacuum Diagram

The Three Vacuum nipples on the Control Head Switch, Is one supposed o be plugged? anyone have a diagram of where the hoses go?

__________________
1968 C20 Fleetside 396 4sp PS PB AC CST
Palo Alto Auto Upholstery, 40 years. PaloAltoUpholstery.com
.
https://www.facebook.com/Palo-Alto-U...4668829916484/
.
https://www.youtube.com/watch?v=RWK8GgWD4uA
Astro-Balls is offline   Reply With Quote
Old 08-17-2019, 06:44 PM   #4
dmjlambert
Senior Member
 
dmjlambert's Avatar
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 1,455
Re: Vacuum Diagram

The 3 port controller has a different diagram. But the water valve needs to be the type that is water open with vacuum applied. If you have the water valve that closes with vacuum applied, then you could probably use the diagram you posted and cap off the unused port on your controller. You would have to experiment to figure out which port to cap.
dmjlambert is offline   Reply With Quote
Old 08-18-2019, 12:38 AM   #5
Astro-Balls
Registered User
 
Astro-Balls's Avatar
 
Join Date: Feb 2019
Location: CA
Posts: 253
Re: Vacuum Diagram

Thanks very much.
__________________
1968 C20 Fleetside 396 4sp PS PB AC CST
Palo Alto Auto Upholstery, 40 years. PaloAltoUpholstery.com
.
https://www.facebook.com/Palo-Alto-U...4668829916484/
.
https://www.youtube.com/watch?v=RWK8GgWD4uA
Astro-Balls is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 09:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com