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Old 02-14-2013, 06:16 PM
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Default How do you flush your ETEC?

After running in salt water I flush with water hose thru flush port, and run engines at idle, no muffs. I have been told I dont need to run engines, but I am concerned about getting fresh water past thermostats. I asked the question on the etec owners forum but dont get an answer.

A. muffs or flush port

B. run while flushing or not?


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Old 02-14-2013, 06:25 PM
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No muffs, I use the flush port, engine off. I bought a quick connect coupler from HD and have one end in the flush port and the other on a hose. No twisting of the hose is needed.
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Last edited by HarleyFLHP; 02-15-2013 at 04:55 AM.
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Old 02-14-2013, 06:32 PM
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No muffs, I use the flush port, engine off.
Yep. No worries.
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Old 02-14-2013, 06:43 PM
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I use the flush ports and never run the engine while doing it. Every once in a while, I'll run Salt away through the system. I don't know if it makes any difference, but it makes me feel better...
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Old 02-14-2013, 06:46 PM
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If you use the flush port and dont run the engine wil the fresh water reach all the jackets in the block without the thermostats opening?
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Old 02-14-2013, 06:58 PM
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If you use the flush port and dont run the engine wil the fresh water reach all the jackets in the block without the thermostats opening?
That's a good question. Wouldn't the flush port be on the back side of the thermostat?
just my thought...

I usually flush through the flush-port, engine off.
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Old 02-14-2013, 07:15 PM
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Quote:
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No muffs, I use the flush port, engine off.
Ditto. Don't run engines.
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Old 02-14-2013, 07:39 PM
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I use the flush port and run at idle. I don't think it matters really. The thermostats aren't going to open anyhow. I have mine NM2K networked with digital temp displayed and they don't get warm enough to open the thermostats on the hose. Not even close.
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Old 02-14-2013, 08:13 PM
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I don't run engines...just use flush port. It is, however, my biggest and only complaint with the Etec. My boat is a lift kept boat, and getting to the flush port by stepping down onto the wet swim platform with the motor locked to one side and slightly tilted, holding onto motor with one arm and leaning over off balance while trying to unscrew the little black thinga-ma-bobber and screw in the hose is a SERIOUS pain in the balls. My Yamaha was MUCH MUCH easier.
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Old 02-14-2013, 08:52 PM
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Interesting I did not know that many people don't even run the engines to flush it. Can you run the engines if you have the hose connected to the port or can you only run them with muffs?
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Old 02-14-2013, 10:00 PM
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I don't run engines...just use flush port. It is, however, my biggest and only complaint with the Etec. My boat is a list kept boat, and getting to the flush port by stepping down onto the wet swim platform with the motor locked to one side and slightly tilted, holding onto motor with one arm and leaning over off balance while trying to unscrew the little black thinga-ma-bobber and screw in the hose is a SERIOUS pain in the balls. My Yamaha was MUCH MUCH easier.
They make an adapter to where you just snap the hose on and you are done. I am at work but if I get a chance I will find it and PM the part# to tomorrow. It should be just the ticket to make flushing easier for you.
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Old 02-14-2013, 10:03 PM
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When I had my Etec I would just hook the hose up to the flush port while we were unloading the boat. It would usually take 5-10 minutes. After unloaded I would then run the engine on muffs for another 5 minutes.
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Old 02-15-2013, 12:29 AM
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I ran an Etec for 7 years. The boat was on a mooring with no access to fresh water so only ever got flushed onece a year - when it was run in a tank of water. Some boats near to me have been doing the same for 25+ years - haven't heard of a problem yet.

The point being: if treating them like this doesn't cause a problem, I can't see the need to have the engine running, and nor would I worry if I had the occasional time when I was in a hurry and had to miss a flush altogther.

Last edited by Clinker; 02-15-2013 at 03:03 AM.
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Old 02-15-2013, 02:18 AM
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Boat stays in a slip, flush motors by hooking hose to flush port for 5 minutes while unloading. Motor off and tilted out of water.
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Old 02-15-2013, 02:22 AM
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You can get the quick connects in any hardware store. Just look by the sprinklers and garden hose sprayers in the lawn and garden area.
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Old 02-15-2013, 03:06 AM
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I flush with a quick connect at the flushing port with the engine running. If you use muffs you are supposed to tape off the holes at the front if the lower unit , if you don't tape off those holes the water wont go up to the power head and cool it!
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Old 02-15-2013, 04:04 AM
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Quote:
Originally Posted by freedbaby View Post
I don't run engines...just use flush port. It is, however, my biggest and only complaint with the Etec. My boat is a list kept boat, and getting to the flush port by stepping down onto the wet swim platform with the motor locked to one side and slightly tilted, holding onto motor with one arm and leaning over off balance while trying to unscrew the little black thinga-ma-bobber and screw in the hose is a SERIOUS pain in the balls. My Yamaha was MUCH MUCH easier.
If you buy a flush port quick connect adapter (the one that's made for an outboard, west marine sells them) you can leave it in the engine and it becomes your tell tale water indicator...you don't have to keep taking the thinga ma bobber out every time you want to flush your engine!
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Old 02-15-2013, 04:46 AM
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I had two ETECs, a 40 and a 150 (both kept in the water full time, no trailer). Used the flush port, engine off on both. I have a 75 ETEC (kept on a trailer) at work and use earmuffs with the engine running mainly because it's much quicker.

My biggest complaint with the ETEC flush design is that in order to attach the hose, you are inserting the male end of the hose into the female end on the engine. In order to thread it on, the hose has to spin. Now, as you try to spin 25 feet of garden hose, it tends to want to resist you. So you sort of have to pre-twist the hose before you insert it so that you can at least get the threads started. Pain in the ass. Yamaha's flush port is ideal (and i believe Verado/Suzuki also) in that you still insert the male garden hose to the female port, but the female port is what spins. The hose stays stationary.

At one point, I did purchase a hose quick connect from the local home supply store and left it on the 40 full time. I quickly learned that it was not a good idea. Since the quick connect wasn't designed specifically for outboards, it restricted the cooling water too much when the engine was running. I experienced an overheat issue during a long high speed run due to this. I removed the quick connect and continued on my way with no more problems. Only after the fact did I discover Evinrude literature somewhere that stated to not leave that type of quick connect on full time. I do believe that their own brand is designed to be left on the engine and it won't restrict the cooling water output.

To combat the hose twist problem, I ultimately made up a short piece of garden hose, maybe 18 inches long at most. One end threaded into the flush port, the other end had that same spinning female end like the Yamaha. At the dock, spin the short hose onto the engine, attach the main garden hose to the other end, and you're good to go. No more wrestling with 25 feet of hose as you try to spin it onto the back of your engine while you are sprawled across the cowling hanging upside down....
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Old 02-15-2013, 04:49 AM
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If you replace the normal tell-tale with a quick connect, make sure it has an equivalent size tell-tale hole or you can overheat your EMM. Beware there are quick connect kits out in the marketplace with NO HOLE.
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Old 02-15-2013, 04:55 AM
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I keep my boat in the water and I'm far enough up the canal that the water is nearly completely fresh so they get flushed as I am driving to the dock. I have never flushed them on the hose.

But if I did, being in the water I would trim them all the way up and use the flush port via the quick disconnect with the engines off.
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