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Older Evinrude HELP??

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My son just purchased an older boat with a 1974 Evinrude Trimuph 70 Hp. We ran it with water muffs on and it ran good. I don't have very good water pressure where I live in the country so we could only run it a few minutes.(Still ice on the ponds up here at least for another week or so)

My question is - where does or is the water supposed to discharge from when running?? Any help would be appreciated before we take it in to a mechanic.

In the pics you will see two holes below the cowling - what are they for?? Thanks much.

P4200172.jpgP4200174.jpg

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well heres what i know... sometimes there is a "tell tale" where water comes out to indicate the engine is being cooled, on my 1959 'rude there is no tell tale. only way i know its cooling is that a small amount of water comes out of the exhaust.

04-19-07_1823.jpg

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There is no tell tale on that engine. A little might come out the idle relief ports that you asked about, but pretty much all of it will come out through the prop when it is not in the water.

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There should be "some" water coming out of those two holes. It should kinda splatter out with some exhuast. They area a small part of the exhaust, I believe the majority will come out thru the center hub of the prop. Bit a little should come out thru those holes.

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Thanks much for the help. We hope to find an open landing up here this coming weekend to at least run it some more. I grew up only fishing from shore. My first boat was an old Herters with 1957 25hp.

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When you try it in the lake, you will see more due to the back pressure.

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