In Bill Jenkins book on the small block Chevy he describes reshaping a
manifold to prevent puddling by using epoxy over a carved piece of balsa
wood. Sounds scary, he used it on a "tunnel Ram", not much heat gets up
to the top of these.
On Fri, 8 May 1998, JWoesvra wrote:
> 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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