Re: flushing after saltwater...what chemicals to use?
I received some good advice from a boat mechanic a few years back and to this day has really worked out good for my outboard. You definitely want to flush engine/lower unit with fresh water on ear muffs ASAP for 15-20 minutes to help dislodge/clear out any salt that you can. Then the mechanic said to shut off engine and the water supply, remove ear muffs from hose, take JOY dish washing liquid and squirt an ounce or two into the hose and reinstall ear muffs to hose then re-install onto lower unit as before. Turn on the water and restart engine and allow the soapy solution to run through the engine until it comes out the "tell-tale" then shut engine/water supply off. What the mechanic explained to me this action does two things, (1) It allows the soap to coat all the metal parts to at least slow down if not stop corrosion and (2) It lubricates the water pumps moving parts so the rubber parts remain supple and not dry out. I hope this helps in any way.<br /><br /> Todd