Should this carb port be plugged?

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Old 08 Mar 2010, 09:25 pm   #1 (permalink)
Den.
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Default Should this carb port be plugged?

I had the entire air filter case off today and I noticed this brass
port with nothing attached to it. Two similar ports near it
apparently are unused and are plugged. All the other ports have hoses
connected. And there are no hoses unplugged. Here is a link to a
picture of the carb. It was taken from the passenger side of the
truck, a 1987 Toyota PU, 2-wheel drive, R-22 engine.


http://tinyurl.com/ylmk5eg
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Old 09 Mar 2010, 07:56 am   #2 (permalink)
Anyolmouse
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Default Re: Should this carb port be plugged?


"Den." <imola23@verizon.net> wrote in message
news:d3a8d371-a19a-4bdf-8d52-f8b6f6f3093b@y17g2000yqd.googlegroups.com...
> I had the entire air filter case off today and I noticed this brass
> port with nothing attached to it. Two similar ports near it
> apparently are unused and are plugged. All the other ports have hoses
> connected. And there are no hoses unplugged. Here is a link to a
> picture of the carb. It was taken from the passenger side of the
> truck, a 1987 Toyota PU, 2-wheel drive, R-22 engine.
>
>
> http://tinyurl.com/ylmk5eg


What happens when you plug it and unplug it when the engine is running?
If it is causing a vacuum leak unplugged you should notice a difference.

--
We have met the enemy and he is us-- Pogo

Anyolmouse

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Old 09 Mar 2010, 03:12 pm   #3 (permalink)
Den.
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Default Re: Should this carb port be plugged?

On Mar 9, 8:56*am, "Anyolmouse" <Anyolmo...@invalid.invalid> wrote:

> What happens when you plug it and unplug it when the engine is running?
> If it is causing a vacuum leak unplugged you should notice a difference.


It seems to run the same plugged or unplugged.
I was hoping someone would help by looking at their carb and compare
it to my photo.
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Old 09 Mar 2010, 03:35 pm   #4 (permalink)
Anyolmouse
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Default Re: Should this carb port be plugged?


"Den." <imola23@verizon.net> wrote in message
news:9881f93f-e070-4d71-8b15-54b7c4d04ea2@v20g2000yqv.googlegroups.com...
On Mar 9, 8:56 am, "Anyolmouse" <Anyolmo...@invalid.invalid> wrote:

>> What happens when you plug it and unplug it when the engine is

running?
>> If it is causing a vacuum leak unplugged you should notice a

difference.

>It seems to run the same plugged or unplugged.
>I was hoping someone would help by looking at their carb and compare
>it to my photo.


If it runs the same then you don't have to worry about it.

--
We have met the enemy and he is us-- Pogo

Anyolmouse

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Old 09 Mar 2010, 06:00 pm   #5 (permalink)
Jeff
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Default Re: Should this carb port be plugged?

Den. wrote:
> I had the entire air filter case off today and I noticed this brass
> port with nothing attached to it. Two similar ports near it
> apparently are unused and are plugged. All the other ports have hoses
> connected. And there are no hoses unplugged. Here is a link to a
> picture of the carb. It was taken from the passenger side of the
> truck, a 1987 Toyota PU, 2-wheel drive, R-22 engine.
>
>
> http://tinyurl.com/ylmk5eg

Goes to either the HAC (High Altitude Compensation) device, OR to the
EBCV (part of the Air Suction and Fuel System Feedback Control System).
What does the underhood sticker say?
I would plug it, like the others.
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Old 11 Mar 2010, 01:07 pm   #6 (permalink)
Den.
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Default Re: Should this carb port be plugged?


> > *http://tinyurl.com/ylmk5eg

>
> Goes to either the HAC (High Altitude Compensation) device, OR to the
> EBCV (part of the Air Suction and Fuel System Feedback Control System).
> What does the under-hood sticker say?
> I would plug it, like the others.


The under-hood emissions sticker is illegible.

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