Join Date: Jun 2005
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Okay, I have a thought. Imagine this. You get some very heavy canvas and sew it into a big 'sock' to enclose the lower part of the motor and come up as high as you can, with a strap to come over the top of motor. You install a small (the tiny Rule unit) bilge pump, with the outlet plumbed with PVC to act both as a drain, and as the 'stick' to push the sack down beside the outboard. When down sailing for the day, slip the bag over the bottom of the outboard, secure it, and pump out the seawater. Then fill it with fresh water and flush the engine, then pump that water out as well. It should protect the bottom of the engine quite well while sitting in the slip, but probably can't be used under way. (Drag, as well as preventing an emergency engine use.)
Just a thought. Oh, almost forgot, you need to treat the canvas with waterproofing, inside and out, and will know when to do it by the water coming in.