Pre 84 Trucks 1st gen pickups

Vacuum Advance Question

Old Mar 5, 2008 | 11:43 AM
  #1  
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Vacuum Advance Question

I am running a weber 32/36. There are 2 hoses coming off the dist. Which one should I hook my carb up to? I have seen some pics with them hooked up to the forward one. Do you just plug the unused hose?
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Old Mar 5, 2008 | 07:57 PM
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From: Roseburg , OR
I only have one hose my self So I would think just plug the other one
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Old Mar 9, 2008 | 07:37 PM
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Use in the inner diaphragm, the one closest to the motor.
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Old Mar 9, 2008 | 08:03 PM
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Originally Posted by 84sr5yoty
Use in the inner diaphragm, the one closest to the motor.
Thanks, should I just plug the other one?
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Old Mar 10, 2008 | 12:13 AM
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Originally Posted by WSUWESTON
Thanks, should I just plug the other one?
No need to since it won't cause a vacuum leak.

You may want to check the operation of the inner diaphragm on the vacuum advance can. The inner one on my 84 went bad 5 years ago. Pull a vacuum on the diaphragm by using a vacuum pump or just suck on the vacuum hose and put your tongue over it. It should hold perfect vacuum indefinitely.

Last edited by 84sr5yoty; Mar 10, 2008 at 12:15 AM.
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Old Mar 10, 2008 | 10:15 AM
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Thanks for the help
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Old Apr 5, 2008 | 09:42 PM
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From: kennewick,wa
now on that you want to use the lower one on the vaccum advance and leave the other one open cause that is your atmosphereic preassure.DO NOT PLUG IT
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