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Last year I had my 17’ fresh water only Trixx with 13hrs winterized at a local dealership and was told the engine was sprayed down with anti-corrosion lube. However, at the time of pickup I was told they did not remove the top deck to perform the winterization which sounded odd…

A few days ago I took the top off to winterize my now 25hr ski myself, only to find a white engine block! The entire block was corroded, with the exception of an area directly below the oil filler neck. It looks like they got a little messy with the change and some oil ran down the neck onto the block directly below, protecting that area from corrosion. This area looks brand new! However, the rest of the surface on that same casting is all white along with the rest of the block.

I don’t think the dealer ever sprayed anything down with anti-corrosion lube, but the dealer says otherwise…

Does this sound right to you?
What do you think?
What’s the best way to fix this?

Thanks in advance!
 

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yep.. Looks like they took your money. I would take it back to the dealer and show them. If they don't do anything, sing like a chicken...
 

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I just bought a Seadoo Spark in similar condition to what you speak off.

You can clean it off with a stiff brush, soap and water & lots of elbow grease.
Or you can do it the lazy mans way - use this technique at your own risk - but it works a treat.
Get a spray bottle with some 30 - 60% phosphoric acid in it.
In Australia we use a product called RustBuster from our local hardware store.
But if you check the active ingredients of many rust converters or tile cleaners many are phosphoric acid based.
Spray on, leave 3 - 4 minutes - pressure wash off with hot water if possible.
Repeat if required.
My engine was a mess. I did it once, it came up 90% good.
Sprayed again, rubbed the tough spots with my finger ( wear rubber gloves ), let sit for 3 - 4 minutes - pressure wash off with hot water again. Done.
My engine came up 99% better.
There are some different alloy colorings lighter and darker. But compared to what it was, it's great!
Then I sprayed it with Inox.
 
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