Saltwater Corrosion Questions

[Joe Monteleone]

Recently purchased a SX192 that I will put in fresh water going forward. Enclosed is a picture showing corrosion of the anode. The boat is a 2015 with 18 hours. Used one season.
Wondering if there are other anodes on this boat or anything else I can to do stop/prevent further corrosion/other things to be concerned about.

Thank you for your advice and suggestions

 

[Bruce]

Wow, that anode is really eaten up!

Was the boat left sitting in salt water?

How do the inside of the jets look?

 

[Joe Monteleone]

Wow, that anode is really eaten up!

Was the boat left sitting in salt water?

How do the inside of the jets look?

I am told for a week or two. Was trailered. I don't know what the jets look like

 

[fairpilot]

That boat sat in water more than a week for sure. There should be 1 or 2 anodes on the engine block, you will have to look at a service manual. I have an 06 so not sure if 15 has them but I would think so or the engine would get trashed sitting in salt water. Also look right under jet assembly under back of boat mine has 2 small anodes there also. Maybe someone who has the newer engine has a manual and can snap a picture and post it where they are at. I would check the impeller for barnacles so you dont get vibrations

 

[Joe Monteleone]

Thanks Fairpilot. I am definitely changing the 'main' anode. Want to everything possible to prevent it going further.

 

[Bruce]

Someone with 1.8 liter engines will have to answer the anode location question. I wonder if it is documented in the owners manual.

The corrosion on your anode is abnormal. My 2007 was originally a Florida then a Mississippi Gulf Coast boat. The previous owner swears it was not a salt water boat but he also lives across the road from a salt water Marina. I launched her in salt water for her test drive and have had her in salt water for a couple of weeks each of the last three years. And this is what my anodes look like.

 

[ltw77]

This may not be the exact answer your looking for but I will throw in my experience. We have an 09 212ss that has spent all its 90 hrs in brackish water off the Chesapeake Bay in Hampton Roads, Va. Never in the water more than the day and washed,flushed and pumps sprayed down with t-9. I am still amazed the pumps look prestine. I would definitely recommend the t-9 spray by boeshield on this. IMHO, this was never washed or cared for @ all.

 

[Cobra Jet Steering LLC]

You need zinc for salt water the one on the pump from the factory is magnesium

 

[Murf'n'surf]

I would verify how many hours are on the motors.

Zincs can get eaten up quickly in marinas with bad grounds (stray current) if you are docked near larger boats that run on shore power. That's my guess with this Yamaha.

 

[Joe Monteleone]

You're right not what I wanted to hear but want to do what's right to protect my investment. Do think Salt away, boeshield rust free, and then maintain with T-9?

How do i get to all of the impellers to do the same?

 

[Joe Monteleone]

The hour meter reads 18. This boat will be in fresh water as long as I own it.

 

[Bruce]

Did you get an amazing deal on the boat? If not can you return it? I would look at the return option before trying to clean it up.

Pulling the pump is easy. This thread has a video with instructions https://jetboaters.net/threads/yamaha-jet-pump-disassembly-from-grant-browne-youtube.446/#post-4387

How fast (GPS speed) does she go in smooth water? Performance is a good indicator of pump condition.

How is the hull? Does it have barnacles or bottom paint?

If you are keeping the boat I would change all the anodes then clean and lubricate the pump and all of the exposed parts.

 

[Joe Monteleone]

I did get a good deal on it. I did not measure the speed, but it does move out and is fast. The hull is very clean, no barnacles, was gel coated and appears to have paint

 

[Bruce]

Hull paint is a protective paint that is often applied below the waterline on salt water boats making it easier to remove the things that will grow on the hull. It devalues boats like ours. The hull should be covered in smooth (slick) gelcoating and graphics.

Boating in salt water is not bad. It is a great way to enjoy our boats. I leave mine in salt water for up to two weeks. At that point stuff is starting to grow but I find a day or two of fresh water boating cleans it up. Many owners have lifts to raise their boat out of the water between uses to keep them looking new. Even if you leave a boat in fresh water for the summer you will find a hard to clean coating of yucky stuff attached to the hull.

 

[Joe Monteleone]

Can you leave the jet boat in fresh water?

 

[Joe Monteleone]

devalues because it slows the boat down?

 

[Bruce]

Can you leave the jet boat in fresh water?

The things that will grow on the hull do so more slowly in fresh water and the anodes last longer. Many prefer to use a lift. We trailer and keep out boat in our garage. This makes it easy to load supplies, drinks, food, toys, etc. We have several ramps and two lakes to choose from as close as 1/4 of a mile away.

devalues because it slows the boat down?

It is considered to harm looks and speed if the hull is painted. If the paint is slick it may not slowe her down.

 

[Joe Monteleone]

Thanks Bruce. Appreciate all the advice. New to this and want to get it right and enjoy

 

[Bruce]

I think you will be fine. My guess is that the anodes did their job as evidenced by the corrosion so replacing them and cleaning up the pump will have her back to where an 18 hour boat should be. @Murf'n'surf and @Cobra Jet Steering LLC you guys have way more salt water experience than I. Do you agree?

How does the clean out port work? It should be easy to remove and install. If not you need to clean up the pump portion and replace the $40 lower section of the plug.

Do you see corrosion in the engine compartment?

 

[buckbuck]

Not sure on your 1.8 liter engine but on mine there is an anode on the pump, inside the engine and on the oil cooler. You may want to change all yours once the 'newer engine' boys fill us in.