RE: Weber question

["MSI: John Christensen" <JohnC@domain.elided>]

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!

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

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