Listers
I need some help on this one. I installed a set of late model ZS carbs
rebuilt by a pro rebuilder. Prior to installing these, the car ran well except
that it was running too lean, I couldn't get the jets to budge and I detected
vacumn leak.
I installed the rebuilts, the car fired right up, I adjusted the idle, went
for a short drive and everything seemed fine. A few days later I had a chance
to run it longer, about an hour and half. Somewhere during that drive the car
started not wanting to idle at stop. Slowely start to die. I discussed the
issue with the rebuilder and he felt that vacumn leak was the most obvious
culprit.
Here is what I have done to date:
Attempted to adjust idle. but no matter how much it will still slowly die.
Plugged the feed to the brake booster and to the dizzy.
Used a propane hand torch to check everything for a leak.
Changed the fuel filter.
Pulled the plugs and gapped. Dry but sooty in appearance.
All of the above to no avail.
The car will fire up immediatly, and if I set the choke just right it will
idle, but a bit roughly. (car has mild cam). I can put the old carbs back in
just to elimiate (or confirm) the rebuilt carbs as the source of the problem,
but I would like to know if anyonme has other suggestions before I go through
that.
Thanks in advance
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