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Old 06-18-2018, 06:37 PM   #1
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Default Used saltwater boat

I am currently looking to buy a larger bow rider...(currently own a 2100SR)
I have found a nice boat that is everything that I am looking for, but, it currently lives in saltwater...
Are there any short range or long range concerns to buying a saltwater boat?
It has a 5.7 350 mag with a Bravo 3 outdrive...

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Old 06-18-2018, 06:57 PM   #2
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Saltwater boats as I have recently found, are way more dependant on proper maintenance such as, was it kept in the water? Was it freshwater flushed after each use? The exhaust manifolds/risers/elbows take a massive beating as compared to freshwater, they seem to last double or more in the absence of salt, same with any of the cooling hoses or passages. I recently bought a boat that had 2 seasons of salt and the rest fresh (16 years) and I was amazed at the difference in mine VS people I know whose boats have never seen salt.

There, now you have what little I know


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Old 06-18-2018, 09:55 PM   #3
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Assuming the boat has open cooling and not closed cooling and you plan to use it in fresh water going forward, correct. The exhaust may need to be replaced and the anodes need to be changed to magnesium.

As overboard asked was it kept in the water?

If in good shape it should provide a decent life going forward. A properly maintained sale water boat can go 1500-2000 hours.
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Old 06-18-2018, 11:27 PM   #4
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Yes, From what I understand, The boat spent it's first 9 yrs in fresh water, then, the last 5 in salt water... (and yes, kept in the water) The boat, an 04, appears to be very clean, and from what I understand, well maintained... Maintenance records were kept, by both owners from the beginning... I figured, that the manifolds and risers would take more of a beating, but wasn't sure about, how salt water would affect the rest of the cooling system, or the anodes...

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Old 06-19-2018, 02:08 AM   #5
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The cooling passages in the block will have rust and some scaling but I would not let that stop you as boats can live for decades in the salt environment.
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Old 06-19-2018, 02:27 AM   #6
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I wouldnít let that stop you, replace the exhaust, water pump impeller and check/change the bellows if they havenít been done in the last 2 years and get on the water!!!


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Old 06-19-2018, 01:31 PM   #7
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The purpose of the anodes is so that they corrode first and not the part they are bolted too. That is why they are 'Sacrificial Anodes'.
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Old 06-26-2018, 01:20 AM   #8
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Thanks for the replies...
Going to go look at this boat in 2 weeks. I will report back

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Old 06-26-2018, 01:31 AM   #9
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Post pictures and let us know what you think.
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Old 06-26-2018, 01:13 PM   #10
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Is the block raw water cooled or closed cooling? That is what makes the biggest difference in my mind. You would need to flush a raw water cooled engine after each use.
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Old 06-26-2018, 09:37 PM   #11
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I am assuming Freshwater cooled, as he said the impeller was replaced recently...

I can only assume that a closed system wouldn't have an impeller...

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Old 06-26-2018, 11:10 PM   #12
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Default Impeller

They still have impellers in the sea-water pumps on closed cooling systems.
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Old 06-27-2018, 01:13 AM   #13
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O.K. I did not realize that.

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Old 06-27-2018, 01:20 AM   #14
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Quote:
Originally Posted by Bigbuddy View Post
O.K. I did not realize that.

bigbuddy
Yes both systems use an impeller. On a closed system the impeller pumps sea water through the heat exchanger and exhaust. On an open system it draws in sea water to the engine and exhaust while the engine circulating pump move it through the engine.
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Old 06-27-2018, 03:04 PM   #15
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You'd be able to tell. Is there a large black cylindrical canister on the top of the engine right above the belts just shy of 2 feet long and maybe 6" in diameter?

If so that is your heat exchanger and would indicate it is a closed cooling (freshwater (antifreeze) cooled). If not, then it is raw water cooled.
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Old 07-20-2018, 01:11 AM   #16
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Default drove 450 miles, but still looking

For any who took part in this topic, We went to see the boat, which was in the water, and looked it over, went for a test ride, and then I told him that I wanted to see the boat out of the water....
The interior was , as I expected, in very good condition... (the boat was very well taken care of)
Out of the water; was a little different story... scummy, a little crusty, some dock rash, and other battle scars...
Seeing the outside made me re-think of what I couldn't see: inside the engine, water lines, impeller, etc.

So, Still looking
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Old 07-20-2018, 01:23 AM   #17
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Good luck with the search.
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