[T3] running rich and mystery material

[Adriel Rowley]

See if you can blow though when cold. As it heats, it should become more difficult to do so, to the point you can no longer. There is an adjustment on them, think on the bottom I.I.R.C.. I look, but think my N.O.S. is in the Squareback. Someone on theSamba had the specifications, but doubt it has to be exact for now. Seems some work fine, but bind in operation.


Hope this helps,
Adriel



-------------------------

1971 Sunroof Squareback with F.I.- Located in Coastal San Diego County
Student, A.S.U. Tempe, AZ


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> From: dlstiefel at dekalbk12.org
> To: type3 at vwtype3.org
> Date: Fri, 9 Nov 2012 21:11:21 -0600
> Subject: Re: [T3] running rich and mystery material
>
>
>
>
> Hello Dennis. As far as your running rich issue - I would agree with
> Adriel's comments;
>
Can't believe I remembered this after all this time an the concussion...
Glad I still have it. ;)
>
> - Check the cold and warm resistance on your 2 temp. sensors. If
> they are not sending the correct resistance to the brain, then the brain
> will think you are running hotter or colder that it really is..maybe
> creating a too rich mixture for the real operating temp. of the motor.
>
>
>
> - Is certainly sounds like your AAR is not working because you have
> no increased idle speed when cold. It is not supposed a large increase in
> cold idle speed, but it will be higher than when the motor is warm. The
> brain is supposed to make the mixture a little richer when cold (like a
> choke on a carbed car), and the AAR is supposed to supply extra air into the
> IAR that will provide more air to the cylinders when the motor is cold and
> the mixture is richer. The extra air combined with the richer mixture
> results in a higher than normal idle speed. Your video shows no indication
> that your idle speed is compensated for when this richer mixture occurs when
> cold.
>
>
>
>
>
> Dave Pallo
>
> '72 Square ~ Elwood
>
> Fairport, NY
>
>
>
> Well I just got the number 2 temp sensor from Jim because I miss placed the
> one I had. Of course I found it after Jim sent it so I can just put the
> other one in and see if there is any difference. I checked the AAR before I
> installed it during engine assembly. The spring turn freely and moved with
> the shaft it is hooked up to. I tried blowing through it and when I would
> turned the spring I couldn't and then when I released it I could blow
> through it. Was there anything else I needed to check on it?
>
> Dennis
>
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