In a message dated 98-05-08 00:40:04 EDT, malcox@napanet.net writes:
<< I was amazed to find a small pool of viscous dark purple
liquid. I believe this was "distilled" pink die from racing fuel,
suggesting that fuel is collecting at this point in the manifold, then
slowly drying out. >>
It surely seems that you are experiencing an overly rich (i.e. raw fuel)
situation. This must be a race car since you are using racing gas. If the car
runs fine and has good wide open throttle performance, good plug cut readings,
etc., I would guess that the big carbs are OK. Smaller ones might be better
through the whole driveability range though.
Anyway, you will need to eliminate the pocket where the fuel collects. A small
(1/16") hole would probably allow it to drain without causing a lean condition
whilst running. You don't want gas to drip on anything such as an exhaust
manifold or electrical part. A little tray could solve that. I expect that
very little fuel would actually drip out, and only at shut-down. You could
even have a small pipe that goes to a catch tank.
You might also be able to reshape the inside of the manifold to eliminate the
pocket.
Don't anyone tell me that this idea creates a fire hazard or anything like
that. That would certainly be a possibility if improperly done, as are most
modifications to the fuel systems of race cars. Use common sense!
Jack Woehrle
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