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Unread 09-18-2013, 12:51 PM   #76
Rollbar
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OK and since we don't have the splash pan on the underside of the intake I am going to test a theory (OH no).

I have the same intake (well almost P-2) w/out a splash pan and I don't have any oil problems through the PCV system as far as I know.

So, what O'm going to do (if you all agree or think the filter won't collapse) is put a fram 3/8 barbed clear filter on it to see if oil is being sucked through there. From what i was told you all said it might unless I'm missing something.

What do U think Matt ?

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Unread 09-18-2013, 12:52 PM   #77
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Quote:
Originally Posted by Matt1981CJ7 View Post
The brake booster can run off of the other nipple on that same vacuum port.

The canister purge can be connected to the manifold port below the idle mixture screw (see the Holley picture I posted above). If you don't have that port on your carb, then T the canister into the PCV vacuum line.

Matt
Thanks, going to lunch PDT
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Unread 09-18-2013, 01:01 PM   #78
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Jim,

I snuck an edit in on my last post.

I think a clear filter between the PCV and the vacuum port would be a good idea, considering you omitted the splash pan.

Matt
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Unread 09-18-2013, 01:14 PM   #79
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Quote:
Originally Posted by Matt1981CJ7
The canister signal should connect to the CTO, which should be connected to ported vacuum. This diagram should help.

Matt
Thanks Matt. No CTO on this intake or EGR.
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Unread 09-18-2013, 01:27 PM   #80
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If you're going to run a canister, you should get a CTO. The canister should only purge when the engine is warm.

There should be a plugged port in the water jacket near the front of the intake to install the CTO.

Matt
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Unread 09-18-2013, 02:57 PM   #81
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Quote:
Originally Posted by Matt1981CJ7 View Post
If you're going to run a canister, you should get a CTO. The canister should only purge when the engine is warm.

There should be a plugged port in the water jacket near the front of the intake to install the CTO.

Matt
So I guess I need a two port CTO for all the Jeeps then.



I have a canister on my 360 but no CTO. Just off the manifold vacuum, gaas vapor line in and ....
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Unread 09-18-2013, 03:07 PM   #82
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Unread 09-18-2013, 05:00 PM   #83
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Jim,

The reason the canister signal should come from a CTO hooked to ported vacuum is, when the canister receives vacuum and the canister valve opens, thereby purging the canister of vapors back to the intake, you are basically introducing a controlled vacuum leak. This makes the air/fuel mixture leaner.

Gasoline doesn't atomize as well in the cold, so you need a richer mixture to create combustion when the engine is cold. That's why our engines have chokes.

With the canister purge signal hooked to full manifold, you are creating a lean mixture when the cold engine needs the opposite. You are also leaning the mixture at idle, which will increase combustion temps, make for a poor idle quality, and increase wear and tear. Not to mention making the carb very difficult to tune properly.

I hope that's clear.

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Unread 09-18-2013, 05:04 PM   #84
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OK. So back to square one. I can just not use a canister and smell vapors then.

Can I just hooks the gas tanks vent line to the canisters o it will bleed into the charcoal

I'll have to look at it closer.

So a TWO port CTo would work then if I can get it hooked up right.

I have two motors to do then to reconfigure mine.

Pain in the butt.
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Unread 09-18-2013, 05:09 PM   #85
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It's not nearly as difficult as you are making it. Once you get the CTO valves, installing them and re-routing the hoses should only take about 5 minutes per jeep.

And as always, we are here to help, if you get stuck.

Matt
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Unread 09-18-2013, 05:28 PM   #86
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Found a Three port on the '85 Waggy intake we took off Jr's engine and another Three port off Ashley's intake.

image-3799193760.jpg
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Unread 09-18-2013, 05:37 PM   #87
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There you go.

You could have them installed and hooked up properly before I get done mixing a cocktail.

Matt
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Unread 09-18-2013, 05:40 PM   #88
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Three ports on the CTO and I need only 2 ?

Does one go to a Dist vacuum or ?

Don't drink that just yet ! I don't want to run a vac line to the tank J/K

Can I put a vacuum hand pump on them to see if they work ?
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Unread 09-18-2013, 05:48 PM   #89
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Just cap the unused port.

Do not hook the vac advance to the CTO. I prefer full manifold to the vac advance.

You can throw the CTO in hot water to see if it opens when it gets warm.

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Unread 09-18-2013, 05:51 PM   #90
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Ok.

I didn't know it the ports were specific.

I'll see if I can find a diagram for the correct routing.

Thanks,
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