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08-17-2019, 02:06 PM
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#1 |
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Registered User
 
Join Date: Feb 2019
Location: Nor Cal
Posts: 822
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Vacuum Diagram
is this the correct vacuum diagram for a '68 BBC AC PB?
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1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA |
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08-17-2019, 04:48 PM
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#2 |
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Registered User
Join Date: Feb 2019
Location: Nor Cal
Posts: 822
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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 . https://www.youtube.com/watch?v=RWK8GgWD4uA |
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08-17-2019, 06:08 PM
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#3 |
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Registered User
Join Date: Feb 2019
Location: Nor Cal
Posts: 822
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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 . https://www.youtube.com/watch?v=RWK8GgWD4uA |
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08-17-2019, 06:44 PM
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#4 |
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Senior Member
Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,575
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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.
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08-18-2019, 12:38 AM
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#5 |
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Registered User
Join Date: Feb 2019
Location: Nor Cal
Posts: 822
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Re: Vacuum Diagram
Thanks very much.
__________________
1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA |
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Linear Mode
