RE: Weber question

[bearbvd@domain.elided (Greg Hermann)]

>Jan Czaban wrote:
>
><<Somewhat differect than the 40DCOE32 series used on the 1750 etc., the
>40DCOE33 carbs for a giulia super have an additional port/plug located
>between and just inboard of the idel mixture screws and the throttle
>location inspection port. The plugs have a blind hole in the middle of their
>top slot, and a protruding pin the bottoms onto a hole in the throttle body.
>What is the purpose of this plug, and what do you do with it?>>
>
>Hi Jan,
>
>Are you referring to the tapered-tip, shoulder-less screws, that are locked
>in place by small nuts?  If so, these are used to balance the individual
>barrels of a single carb.  I was told that these were added in later years
>to help better tune the carbs for emissions. I can't verify that claim, but
>I have used these adjustment screws and a Synchrometer to perfectly balance
>my carbs.  Works great!

Yep--that's what they are for. I think they first were used on the 40
IDA3P's , as used on P*rsche flat sixes.

Greg
>
>-John
>Seattle, WA
>'69 GTV
>http://www.members.home.net/cobar

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