Is it OK to start a boat out of water?
See full version: Where does water come out of inboard outboard
Is it OK to start a boat out of water?
Beside above, how does water get in a boat engine? Inboards. Most boat engines use water drawn from outside the boat to cool the engine. In raw-water-cooled engines, seawater is pumped directly through the engine block casting, head assembly and exhaust manifold, and then returned overboard with the unwanted heat. more
Turn on the garden hose all the way to confirm that there is a solid flow of water, then turn it off for now. Set the outboard engine to an upright position. Locate the water inlet vents on the outboard motor. Now that the water supply is hooked up, you can safely start your outboard engine.
The water comes into the outboard's engine through the lower unit, which is below water level as the boat is moving. Without a pump of some kind, water couldn't flow up to the engine. here
Just so, where does water come out of outboard? here
Flushing a boat motor by running it out of water is a routine maintenance task. Running the engine without a water source for any length of time will cause damage, so you'll need to attach a hose to the motor's water intakes. If your motor doesn't, you'll need a set of motor flusher muffs. here
There are varying levels of danger associated with little to no cooling water flow through the engine and out the exhaust. [links]
There are two primary reasons for the lack of cooling water flow in outboard motors. The first is a damaged impeller. [links]
Locate the ejection point with the engine running and take note of the flow. Should the water stop squirting or the flow become week, immediately shut the engine down. here
Intakes mounted on the motor below the water’s surface pull raw water in and distribute it throughout complex tubing up the shaft and around the engine. In the process, the motor temperature is reduced, and the water is mixed with exhaust fumes and expelled. more
The exhaust on an outboard Motor is located at the base of the propeller. The gasses produced by combustion are released.
2. Engine Break-In Procedure: The 10 Hour Sea Trial [links]
Company says it will no longer make Evinrude outboard boat engines, citing impact from coronavirus. Company president and CEO José Boisjoli said, “Our outboard engines business has been greatly impacted by COVID-19, obliging us to discontinue production of our outboard motors immediately…. [links]
The “break in” process for the Suzuki DF225 Four Stroke Outboard is outlined below: For the initial 2 hours: Allow sufficient idling time for the engine to warm up after cold engine starting (about 5 minutes). After warming up, run the engine at idling speed or the lowest in gear speed for about 15 minutes. here
How to Start a Mercury Outboard Motor more
It should be warm but not super hot. The water coming from the engine should be warm also. When it’s warm you know the water is pulling heat out of the engine to keep it cool like it should. Something like how a radiator works….
Telltale (pisser). I assume this is what you are talking about when you said "coolant spout"? While I'm not overly familiar with your engine, water takes the path of least resistance and it's not uncommon for water to NOT come out the telltale without the engine running. The telltale could also be clogged - a piece of weewhacker line can help - or, if possible, follow the water line on the inside of the cowling and backtrack. Again, though, I'm not exactly sure what yours looks like so a pic would help. here
All of the vanes of that impeller seem to be intact - which is a good thing as you don't have to go hunting to find them. BUT, I wouldn't even consider starting the engine with an impeller that old in there - you don't want a piece breaking off. The housing appears to be good - but check with your fingernail. If you can get your nail caught in a groove, however slight, replace it.
I'm not sure what you are talking about regarding "removing a bolt", but. why not just use a commonly available (about $6) flush attachment? They look like ear muffs and are sometimes just called "muffs".