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#1 |
72 GMC
Join Date: Feb 2008
Location: Wells, Maine
Posts: 534
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Vacuum advance question
Hey
How can I tell if my vacuum advance is working BEFORE I put the distributor back in the truck ? I hooked it up to another vehicle, but I don't know how much vacuum I need to pull before this thing should move. Any help would be appreciated. Thanks guys. |
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#2 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Vacuum advance question
If you're referring to the movement created by vacuum, it should move by just sucking on the end with your mouth. I use a short piece of hose if it's still on the engine.. Doesn't take a log of vacuum to move it.
If it doesn't move then it's defective. |
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#3 |
72 GMC
Join Date: Feb 2008
Location: Wells, Maine
Posts: 534
|
Re: Vacuum advance question
it doesn't move.
glad i asked before re-assembly thanks for the help |
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