I have an '89 Prostar 190 that I bought three years ago. It was used up until that time in brackish water, so the engine is quite rusty. It runs great, but I have had to replace the exhaust manifolds because they pretty much rusted out. I am worried that the block may be in the same condition...when I drain it in the fall, rust drains out with the water from the block. I am trying to decide if I should get rid of it now before there are bigger problems, but I didn't want to have to buy a new one for 3 more years. Has any one had this problem with exhaust manifolds, and if so, did a problem with the block or other major components follow shortly after? Any advice would be greatly appreciated.
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