mercruiser in saltwater ?????

Joined
Jun 11, 2009
Messages
74
I was hoping to take my boat down to Hilton Head and use it for a few days in Broad creek which is saltwater. Will flushing the engine with fresh water and rinsing the trailor be sufficient to prevent saltwater corrosion? And what other measures can I take to protect the engine and other parts of the boat ( grease, paint, wd40 ) ?
 

P 0 P E Y E

Chief Petty Officer
Joined
Jun 3, 2009
Messages
441
Re: mercruiser in saltwater ?????

Rinse it off real good at the end of your trip.

It's always salt water for us and our stuff gets corroded but it takes multiple seasons of neglect to have the salt blow things up.

Enjoy the winderul world of Salt Water boating....
 

dontask

Petty Officer 2nd Class
Joined
Apr 5, 2009
Messages
177
Re: mercruiser in saltwater ?????

Salt loves Mercruisers.
 

Shadow66

Petty Officer 3rd Class
Joined
Feb 21, 2009
Messages
76
Re: mercruiser in saltwater ?????

I live in Charleston and go in salt water here all the time with our Mercruiser 3.0. Lots of people do and as long as you take care of it, rinse after it's no issue.
 

dontask

Petty Officer 2nd Class
Joined
Apr 5, 2009
Messages
177
Re: mercruiser in saltwater ?????

care to elaborate ?

Take a magnet to the metal in and around your IO engine compartment and see what salt loves to interact with as opposed to engines built primarily with aluminum and stainless metal.
I suggest before you take it out in salt water you treat the engine & compartment metals with moisture barriers, corrosion/rust inhibitors. Flushing the engine on muffs only rinses the interior parts of the cooling system. Salt is hard to get out of exterior engine assembly seems, in and around bolt threads, cracks, crevices, holes, in and under cracked chipped worn away paint. Once it gets in it is hard to get out and that's where it starts working.
 

Fishermark

Vice Admiral
Joined
Oct 19, 2003
Messages
5,617
Re: mercruiser in saltwater ?????

Just flush your engine and you will be fine. It won't hurt to spray some anti-corrosion spray on the engine, etc.

If you have a painted steel trailer.... that I would be worried about. Just one dunk in salt water could cause problems down the road. I would suggest you wash it down with soapy water after use. Even that may not be enough to save it. It is AMAZING what salt water will do to steel. I've boated in saltwater all my life and I am simply resigned to replacing items on a regular basis. Even galvanized doesn't last long. But simple painted steel lasts DAYS - if that.
 
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