How Do You Flush A 40 Hp Mercury Outboard

Februari 26, 2021 Posting Komentar

Turn on hose and check your hose is connected to ear muffs correctly and there is good water pressure. Id recommend the acid but just be careful.

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You must be sure that the earmuffs are completely covering the water intakes.

How do you flush a 40 hp mercury outboard. Push the hose adapter into the flush connector until you feel the snap of the connection being made. Finally replace the fuel filter. Open the water and let it flush for 56 minutes remember to do this while the motor is off.

Mercury outboard motors with a hose attachment can be flushed without starting the motor. So the end result is if youre looking to flush an outboard after every trip use either fresh water or put a bit of salt away in it. You can remove and visually inspect most parts of your clogged outboard but not all.

Start outboard making sure that your outboard is pumping water from tell tail. Do not open the tap all the way as this allows a high pressure flow of water. Coastal flush port pushes water in two directions-.

Turn on the water and let it run for at least five minutes. Allow freshwater to run for an estimated ten minutes or based on manufacturer recommendations. Its used to BACKFLUSH all the water SUPPLY passages water tube water pump and the coolant DUMP circuits in the adapter plate.

Place the outboard in water or connect flushing attachment for circulating cooling water. It would workand then not. And only Mercury offers a three-year limited corrosion failure warranty.

One example is the jets and passages in a carburetor which are small some verging on invisible. Allow the motor to flush for 3 minutes. Turn on the water until you see water squirting out the sides of the flush muff then start your outboard in neutral.

This port is accessed by removing a dust cover. If the boat is in the water tilt the engine up until the outdrive has drained of saltwater. Place a drain pan under the outboard and remove the 18mm drain bolt and its nylon washer from the driveshaft housing.

Saltwater maintenance is made easy in the 40-60hp models with the innovative freshwater flush. Do not start the engine. 4 Shift outboard into neutral.

To flush your outboard with the engine running you will use a motor flusher also known as earmuffs. Do not run engine above idle when flushing. All you have to do is lower your engine to the vertical position hook up a hose to the conveniently located flush connector and let the water run for 10 minutes you dont even have to start your engine.

See the picture of mine by clicking the thumbnail. Flushing or backflushing a outboard for clear water passage The 1988 140 is a big bore looper that came with a tell-tale overboard indicator or whatever you may call the pisser. Turn the engine off.

Now your motors fuel. Remove the cap from the flushing port and thread your garden hose into it. Heres the good news.

Mercury makes special note of using this adapter to drain the cooling water from the engine by disconnecting it from the water-supply hose then tilting the engine to allow all the water to drain out. Flushing with freshwater is a simple task and this Mercury Quick Tip video will show you how. Remove the hose and replace the cap.

It should be connected to the adapter plate and exit through the starboard lower cowl. Had sandmud circulating within the block somewhere. Install the new woodruff key included in the water pump repair kit onto the driveshaft and use a dab.

Using this flushing method you will turn on the engine. Run outboard for 2 to 5 minutes to ensure the thermostat opens and fresh water passes through all internal cooling galleries. Run the engine for ten minutes to allow treated fuel to reach the carburetor.

For flushing without muffs Mercury offers a garden-hose adapter that connects to a port in the lower engine cowl. Insert the flush fitting its a fitting that allows you to connect a hosepipe to the port in your outboard. You can flush the cooling system with fresh water using a garden hose just as you do when you winterize the outboard.

Tilt the outboard clear of the water. I also had the same problem with my 40HP Merc last year. Partially open the water tap 12 max.

Allow the outboard to remain vertical until the water drains. Install the new lower gasket wear plate and upper gasket all included in the water pump repair kit with the neoprene side of the upper gasket facing upward. Start the engine and flush the cooling system for at least 5.

But some parts require a different approach. What I eventually had to do was take it in and the mechanic said he was somehow able to flush out the system. And if youre looking to restore an outboard that is really corroded up over time.

Remove the top cowling then tilt the motor up as far as itll go and turn it so the drain bolt is facing downward. I did the same sort of thing grouse suggested. Its worked fine ever since.

Check that water is coming out of the telltale whilst the engine is running. Have a look at the bottom of the leg and you should see a vertical row of holes on either side. How to Flush Outboard Engines that have a Flushing Port.

PERFORMANCE Quicker is Better Large-displacement dual overhead cam increases low-end power. How to Change Mercury 40HP Engine Oil Oil Filter. Just flush the motor once youve tilted it clear from the water.

It is important to get that treated fuel into the entire fuel system by running the boat for about 10 minutes either in the water or while connected to a garden hose follow owners manual instructions if using a hose. Connect the hose to the motor. Mercury FourStrokes consistently outperform the competition in 0-30 mph acceleration.

Screw your garden hose onto the motor flusher then slide the motor flusher over the engines water intakes. Remove the hosepipe and the flush fitting replace your plug and youre good to go. Set the outboard to no more than a fast idle 900-RPM max and allow to run for 15 minutes in neutral.

Using the Flush Port is about 98 efficient but doesnt flush through the thermostats. Make sure the muffs cover the holes turn the water on so that water is coming out of the muffs then start the engine. How to use Outboard motor Flush Muffs for Mercury Yamaha Evinrude Suzuki boat engines - YouTube.

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