Outboard flushing questions

  • Thread starter Arturo DeVitalis
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Arturo DeVitalis

My 6hp 4 stroke Nissan has a screw-in adapter hole up under the engine housing that has a removable rubber plug in the hole, to be used for flushing the engine. Several questions: 1) does the adaptor need to be detached after each use, or can it be left in place throughout the boating season with a plug in the open end? It is a bit tricky to screw/unscew the adapter while bent over the transom while the boats sits at the dock. Do the earmuffs do as good a job of flushing/rinsing as the adapter? 2) when flushing with motor attached to the transom and using the adapter must the water intakes near the prop be out of the water? I assume they do, but it requires I hook up fresh water supply, start the engine in the down position, then raise it to 45 degrees, and then open the water supply line. Is there a smarter way to do this while the motore is mounted on the transom while the oaat sits at the dock? Seems to me the adapter is for off-transom use and earmuffs are the only way to go when the boat is in the water. Have I got this right?
 
Jun 2, 2004
3,612
Hunter 23.5 Fort Walton Yacht Club, Florida
Just Wondering

What if you backed in and did this from the dock and are your sure the engine needs to run when flushing it out this way?
 
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Arturo DeVitalis

A Good question

that is a REALLY good question. Does any one have the answer?? BTW Rick I pareallel park at my dock. also havn't had time to mess with the Gerr downhaul other than get prices on 1/4 in line. Tks for your photos, they help totally.
 
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Benny

Check out what Rick is saying;

A lot of the newer outboards with flushing connectors right up into the powerhead do not need to be running when being flushed. Water pressure and gravity clean out the passages. Check your engine manual.
 
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