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Evinrude 200 Oceanpro overheating on stbd. bank

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Evinrude 200 Oceanpro overheating on stbd. bank

Old 05-28-2016, 09:31 AM
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Default Evinrude 200 Oceanpro overheating on stbd. bank

Just fired up a 97 200 that has been sitting for 2 years. There is water gushing out of a small black hole that is right at the top of the midsection just below where the powerhead sit on the midsection when the engine is running. Water does not seem to be getting up into the head. Only happening on the stbd bank. Water also comes out of the same hole if I try to backflush from the pee hole.

Seems like ther is some sort of blockage.

Any thoughts or ideas on where to go from here? Should i try compressed air into the coolant chamber from the thermostat housing?
Old 05-28-2016, 10:29 AM
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Have you dropped the lower unit to check the condition of the impeller? Should not be able to separate the impeller from its hub and it shouldn't be worn or cracked. Also, should not look burned. If the motor sat that long, the impeller could have dried out and when you started the motor a broken piece could have moved up the cooling passage causing a restriction. That's from the manual we have for that engine.

Thanks,

Caleb
Old 05-30-2016, 05:11 PM
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This is the hole and the 2nd shows the water when the engine is running.

I haven't dropped the lower unit yet to check impeller, but might be next on the list.

It seems like it must be a blockage. If it is a blockage, what can I do? It is only on the stbd side.




Old 05-30-2016, 08:54 PM
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so upon more research that is supposed to be a plastic 90 degree fitting with a hose barb on the end that threads into the midsection and mine is broken off flush, but either way why would water be gushing out of there?

I dropped the shoe tonight and the impeller is fine. I will replace it while I am in there
Old 05-31-2016, 04:59 AM
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That is where someone attached the hose for a water pressure gauge. You will have to use a 1/8-NPT pipe plug to block it off - preferably stainless steel.
Old 05-31-2016, 07:54 AM
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Originally Posted by seahorse View Post
That is where someone attached the hose for a water pressure gauge. You will have to use a 1/8-NPT pipe plug to block it off - preferably stainless steel.

Yes, that makes sense. I will get a plug and try that, but I do think I must have some sort of restriction or blockage on the stbd. bank as they are getting much warmer than the port side.

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