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Old 10-08-2017, 12:34 AM   #1
Golf
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Join Date: Sep 2017
Location: Birmingham, AL
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Vacuum advance missing from distributor

1984 C10 305 700r4 trans
No history, trying to get it back in order. Changed fuel pump, thermostat, flushed coolant, changed oil... trying to work on vacuum lines now

I'd like to remove all vacuum lines possible, I assume I need brakes, PCV and vacuum advance.... don't see the vacuum advance lol

Not sure what the broken tube in photos is, want to put a filter on intake air valve cover...

some vacuum lines run into themselves, maybe that's the wipers.... if anyone could help me figure it out be great







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Old 10-08-2017, 12:40 AM   #2
Warrens69GMC
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Re: Vacuum advance missing from distributor

The broken hose is your gulp valve for your smog pump air injection system
No vacuum = computer controlled, but you eliminated the feedback from the original carb by putting on a non-computer controlled carb. You need a HEI with vacuum advance now
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Old 10-08-2017, 02:18 AM   #3
Golf
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Re: Vacuum advance missing from distributor

Truck runs fine, sure 84 is computer controlled and someone didn't just remove the vacuum advance from distributor?
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