On Thursday, January 5, 2006, at 12:19 PM, Dick J wrote:
> Let's assume that a 1/2" fuel line will be maxed out, flowing as much
> fuel as it can. What size hole/tube is needed for an air vent on the
> tank so that the flow of fuel will not be slowed by pulling a vacuum?
> I'm just guessing that air flows a helluvah lot easier/faster than
> fuel, and that something like a 1/8" or 1/4" vent will compensate for
> the liquid flow through the 1/2" fuel line.
I dunno if I'd settle for that, Dick. When I pour fuel from my
5-gallon jug into the Oshkosh -- the spout on the jug is 1/2 - 5/8 or
so, and the air hole is about 1/8 -- and there's an obvious
restriction, the fuel flows slowly-er than it would if the air hole
were bigger. It's just gravity, not a pumped system -- and there's
restriction.
Here's yet another case where bigger would be better. Don't tell Nancy
I said that.
Jon Wennerberg
Seldom Seen Slim Land Speed Racing
Marquette, Michigan
(that's 'way up north)
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