My off-idle stumble was helped by bumping the timing forward a bit. Try
tweaking your distributor a few degrees, more or less. I believe that the
Weber folks tell you to run almost 35 degrees of advance...Mine was best at
32 degrees, at 35 I couldn't get an idle lower than 1200 rpm. YMMV and good
luck!
Michael S. Lishego
http://www.geocities.com/MotorCity/Speedway/3706/
>
>Mike,
>
>When I first put the Weber on my B it ran pretty well. Then I dropped
>my car off at a reputable local shop that specializes in foreign cars just
to
>go over the timing, carb set-up, etc, double check my work. A mistake. He
said
>I had everything just about on the nuts. Unfortunately the car ran better
>before he made some "fine adjustments"
>
>The car(b) now has what I think you are calling "the dreaded off-idle
stumble".
>It also alternates between idling like a jeweled watch and refusing to idle
>without full choke.
>Going from idle to throttle when starting from a stop the car(b) hesitates
>unless I give it a quick jab of the thottle to get past the stumble.
>
>To anyone out there: is this stumble because the carb is set to lean? Once
>moving the car(b) runs fine.
>
>Now, I put the Weber on from the begining so I don't have a reference point
to
>SU's. I still have my SU's but will probably save them for a winter
project to
>set up on the car. Any advice on curing the Weber off-idle stumble.
>
>
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