Vacuum Advance Question, To cap or not to cap? |
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Vacuum Advance Question, To cap or not to cap? |
Ansbacher |
Jan 10 2019, 05:38 PM
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#1
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Senior Member Group: Members Posts: 689 Joined: 4-July 14 From: Tampa Bay, Florida Member No.: 17,589 |
Am in the process of replacing my 009 distributor on my dual Dellorto '74 2.0 L with a 205AA 1.8 L vacuum advance distributor. I am using the small outlet on the vacuum pot to hook up a T-line to my right and left carbs. My question is - Do I cap off the other outlet on the pot, or just leave it open to the atmosphere? Thanks.
Ansbacher |
914_teener |
Jan 10 2019, 06:00 PM
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#2
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914 Guru Group: Members Posts: 5,194 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Am in the process of replacing my 009 distributor on my dual Dellorto '74 2.0 L with a 205AA 1.8 L vacuum advance distributor. I am using the small outlet on the vacuum pot to hook up a T-line to my right and left carbs. My question is - Do I cap off the other outlet on the pot, or just leave it open to the atmosphere? Thanks. Ansbacher Leave it open. |
tmessenger |
Jan 10 2019, 06:17 PM
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#3
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Member Group: Members Posts: 70 Joined: 6-December 18 From: Iowa Member No.: 22,707 Region Association: Upper MidWest |
Am in the process of replacing my 009 distributor on my dual Dellorto '74 2.0 L with a 205AA 1.8 L vacuum advance distributor. I am using the small outlet on the vacuum pot to hook up a T-line to my right and left carbs. My question is - Do I cap off the other outlet on the pot, or just leave it open to the atmosphere? Thanks. Ansbacher Not an answer to your question but I'm in the process of setting up a better vacuum signal with the dual Webers on my engine. It currently has only one vacuum line connected. I'm setting it up now with 4 lines Y together so I have a vacuum signal from each port. |
Ansbacher |
Jan 10 2019, 07:09 PM
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#4
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Senior Member Group: Members Posts: 689 Joined: 4-July 14 From: Tampa Bay, Florida Member No.: 17,589 |
[
Leave it open. [/quote] Can you elaborate as to the advantage of leaving it open? Very curious. Ansbacher |
mgphoto |
Jan 10 2019, 08:32 PM
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#5
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"If there is a mistake it will find me" Group: Members Posts: 1,335 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
Capping will cause a vacuum resistance to the advance plate in the distributor.
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