Leprechaun
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- Apr 3, 2009
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In mine, the filter sits above the point in the filter box where the air enters, so water would have to defy gravity in order to pass through it. Given that the majority of the water would strike the back of the snorkel opening, it would be running down the back of the snorkel, enter the box and pool in the bottom if it were completely sealed.
That raises a good point. What happens to that water when there's a lot of it? We drove through significant amounts of rain (and fog) at Christmas and didn't seem to have a problem with the engine ingesting water, so it must have gone somewhere.
I know what you're implying - that a really good seal on the snorkel system could result in the air filter chamber filling with water with the inevitable gulping of this by the engine, which basically means "water tight seal = inevitable disaster".
I wonder if that's avoidable for those that want to go dunking their windscreens. Personally I don't, but the service manager at my dealership said that he'd seen a Nav with sea water halfway up its windscreen and going strong. I don't doubt it could be done, especially with some of the movies we've seen linked to here.
But you raise a really good point: what would you do with the water collecting in the box, if you had the need to ford deep crossings a lot and were caught in a heavy storm? Bilge pump time?
There is a one way valve in the bottom the the air box.