Water Outet Tree

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 4:15 pm

Ok I didn't mean secondaries yea, I know what those are but I wasn't thinking when I was typing. What I meant was some water outlets have screws on the top. And on some ones, they have a small tree. Sort of like your intake tree, this gives vacuum sort of like a carburetor. Whereas I cant use the intake because its not the right type of vacuum.

Redcap · Post by **Redcap** » Wed Sep 16, 2009 6:35 pm

JMcTurnan wrote:Ok I didn't mean secondaries yea, I know what those are but I wasn't thinking when I was typing. What I meant was some water outlets have screws on the top. And on some ones, they have a small tree. Sort of like your intake tree, this gives vacuum sort of like a carburetor. Whereas I cant use the intake because its not the right type of vacuum.

Uh...I don't think you actually know what you are talking about.

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 7:23 pm

I sort of do, thank you LOL. Ive seen one ever, but I cant seem to find another. Its like an intake tree, but it goes on your water outlet. And it puts out a suction almost like your carburetor. So if you carburetor does not have any vacuum ports for a vacuum advance distributor, these things give it. Ill look if I can find it.

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 7:29 pm

, some look like this, but others are a bit larger.

Post by **70_F100** » Wed Sep 16, 2009 8:07 pm

Redcap is right, you have NO CLUE what you're talking about!!!

Yet, you want to argue about it!!

That is nothing more than a vacuum switch. It is operated by the water temperature. These are emissions control devices which cause the engine controls to function differently when the engine is cold vs. when the engine is at normal operating temperature.

One port is connected to a vacuum source (carb or intake manifold). The other port is routed to the device you wish to control (vacuum advance, EGR, etc).

As the coolant warms up, it causes the switch mechanism inside the unit to move. When the coolant is cold, the switch is "closed" to prevent application of vacuum to the second port. Once the coolant reaches a pre-set temperature, the switch "opens" to allow vacuum to flow through the switch.

If you can find one that CREATES vacuum, you better guard it with your life, because you'll have the ONLY ONE IN CAPTIVITY!!!

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 8:33 pm

What I'm wondering is that I cant directly hook my vacuum advance to my intake right? Because wouldn't it mess it up at idle, just starting. So what I am asking, how would I hook up a vacuum advance correctly without a ported carburetor.

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 8:35 pm

And for your information, I'm not arguing, I'm just trying to figure out what I need too. But what I notice, it seems any comment I ever make you always make rude comments to me, I never say anything mean to you. So try not to be so mean, lighten up a bit, remember what goes around comes around. I'm trying to learn the best I can on engines, and well so far I've learned alot, not everything. But just keep your snobby comments to yourself.

Post by **70_F100** » Wed Sep 16, 2009 8:37 pm

Ported vacuum is vacuum that increases with engine speed, due to the location of the source on the carb.

The more you open the throttle, the higher the vacuum (up to preset limits).

Intake manifold vacuum is maximum at idle and deceleration.

To the best of my knowledge, and I could be wrong (but I don't think so, in this case), you're fighting a losing battle.

Use a distributor with full mechanical advance and forget the vacuum, 'cause "you ain't got none"... :bdh:

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 8:40 pm

I mean as of now I do, but I was thinking of putting a kit in my old holley so I was just wondering but thanks, you answered my question.

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 8:41 pm

fordman · Post by **fordman** » Wed Sep 16, 2009 10:52 pm

heres the post i was refering to earlier. it shows how these can be routed to a dual vacuum advance dist. like was already posted you can change the vacuum advance thing on the dist to a single one. or just not hook up the second port at all and run with only the one hooked up. http://www.fordification.com/forum/view ... 45#p176745

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 11:13 pm

I have a single vacuum advanced, its not dual.

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 11:13 pm

I have a single vacuum advanced, its not dual.

fordman · Post by **fordman** » Wed Sep 16, 2009 11:15 pm

so the carb has no ports on it at all for the dist to hook to?

JMcTurnan · Post by **JMcTurnan** » Wed Sep 16, 2009 11:27 pm

Yes, it wasn't originally made for a vacuum advance dizzy. Because it was the original carb and dizzy in there, but old diz broke.

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