HALP dribbling Thanks everyone

Clarence L.Snyder clare.snyder.on.ca at ibm.net
Wed Jan 20 00:28:59 GMT 1999


Peter Fenske wrote:
> 
> Hi Rick, Bruce and all the other helpful people
> 
> The carb is fine, brass floats, expoxied plugs, level 11/32 and
> tried a fact rblt one just to check. When adjusted both carbs do this.
> Ported spark and 0 degrees inital.
> 
> Yep Rick you are right. I have to get the CO to less than 1.5%
> to meet standard. If I leave it at 3% runs like a champ
> no dribbling but is illegial
> 
> To get the cat to light you have to have less than 1%
> 
> You guys did get me thinking. In order to idle
> properly with the lean mixture required a much
> higher airflow is required. this tends to activate the
> main booster, hence the dribbling.
> Also the low vapor pressure used here in winter
> is a contributation.
> 
> What we are gonna try and the CO meter likes it
> is creating a massive air leak. HC goes up
> but should be tolerable.
> 
> Just hope the smog guys don't see it
> 
> Thanks all:peter
> 
> And no this is not how the car will be driven later

Rework the booster venturi to make it a little less responsive, or get a
booster from a different carb if it is removeable. Your air bypass idea
also has merit - possibly reprofiling the throttle plates to get the
additional airflow running on the outside of the throat instead of down
the center might be an option.



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