The shaker pan has two drains in it and the base is raised under the filter element, so I don't think it allows that much water in. It's actually really fun to watch the filter lid in the rain as the engine vibration will cause water to pool and "dance" around on the lid while I'm driving. I had an issue of literally filling the entire top end of the engine before I put drainage in the shaker pan, and found that the rear most and more active drain is *PERFECTLY* sized for an acorn to obstruct it... so I have had to pull spark plugs and let water out twice, but both times the engine was static, not running.
Jeremy
1
