How to run a boat motor out of water

Reduce the strain on a motor by trimming it up until the hull breaks free which should cause the boat to suddenly go faster. Tilt the outboard clear of the water.

Starting an outboard boat engine out of the water can be done by using a tool called a Moeller Flushrite Boat Motor Flusher.

How to run a boat motor out of water. One way to run a boat engine out of water to check its functionality is. A boat motor should never be run without water running through it to coll the engine. Starting an outboard boat engine out of the water can be done by using a tool called a Moeller Flushrite Boat Motor Flusher.

This tool is designed to look like ear muffs so that it can firmly attach itself to the inlet vents on the motor. The inlet vent is what sucks the water in to cool off the engine while it is running. Easy Step-by-step Guide to Start Your Inboard Boat Engine Out of Water.

Prepare your boat and tools. Attach the water hose to the flusher. Inspect placements and attachments.

Turn on the water then the engine. Allow the engine to run for several minutes. Boating is an activity where safety is given priority.

There are two methods for testing your boat motor out of water. Method 1 This method involves a few steps. Step 1 Locate the water intake in the motor and decipher if it features an attachment for connecting the hose.

If it has an attachment then you will connect the hose. Otherwise you will need motor muffs. Failure to supply water to your engine will cause the impeller to burn out and the engine to overheat.

Step 1 Attach the outdrive muffs to a garden hose. Step 2 Place the muffs over the vents in the outdrive. There are two vents on each side.

Make sure the muffs are completely covering the vents. Step 3 Turn the water source on. Never start your engine out of water unless you are using an external lower-unit flushing adapter commonly known as ear muffs designed for your type of outboard motor not the integral Freshwater Flush Adapter found on some engines to provide cooling water from a garden hose.

Otherwise you could damage or seize the engine. MInimize any chance of restriction on the exhaustStart the motor and back boat into the water running see if it stallsMaybe its not breathing. Dont let run very long with out outdrive in the water for coolingHave seen carboned up exhaust on an outboard run great on muffs but drop it in the water and just enough added restiction that it would stall out.

Another way to prematurely age a motor is by not trimming it properly. With the trim set too far down the bow of the boat plows and creates load on the engine like a car driving up a steep hill. Reduce the strain on a motor by trimming it up until the hull breaks free which should cause the boat to suddenly go faster.

Run your garden hose into the bucket to make up water being pumped out by the engine. Fill the hose connected to the pump inlet with water so the pump picks up water quickly and gets lubricated quickly then shove the hose into the bucket making sure the pump continues to pick up water. How long can a motor run out of water before impeller damage.

If you ever notice how tight the rubber impellar is packed into that stainless steel cup then you know it wont take long for it to bulid up enough heat to damage it. Id say running dry for 20 seconds would most likely fry that impellar. Better change it and not take a chance.

Mercury Boat Motors Without a Hose Attachment. Allow the engine to run at idle with the shifter in the neutral position. Make sure that a steady stream of water flows out of the water pump indicator hole as you continue flushing the motor for 3 to 5 minutes.

This will be sufficient to flush the engine. Tilt the outboard clear of the water. Connect the hose to the motor.

Allow freshwater to run for an estimated ten minutes or based on manufacturer recommendations. Allow the outboard to remain vertical until the water drains. Its important to note though if the engine is on a trailer and you tilt it all the way up.

When the whole boat rumbles and shakes at all speeds the engine and shaft are out of alignment. If you want to see how and when your boat vibrates watch the surface of a bucket of water placed in the cockpit. Jets Suck Water jets let you run in shallow water so you go in freely.

Unfortunately you may not come back out. 1 thru-prop exhaust - you should see water coming out with the exhaust through the prop. 2 thru-prop exhaust with bad exhaust bellow - water comes out of the transom assembly where the drive hinges up when trimmed or tilted 3 thru-hull exhaust - water comes out with exhaust or through water dumps.

Could be stern or side-mount thru-hull. The next order of business is to check out the condition of the gear lube. We are looking for water.

Making sure that there is good gear lube in the lower unit will also play out in our favor when it is time to get the boat and motor back into commission on the water. Use a hosepipe with a trigger attachment. Take the lid off the strainer and fill with water before trying to start the engine to lubricate the pump.

Then leave it until the engine starts upon which you can squirt water into the strainer. Its quite easy to keep it topped up for a short time. 26 Apr 2011 3 RivalRedwing Well-known member Joined.

At low speeds or idle the engine will cool properly. If overheating only occurs at the higher throttle look at one of the above factors for the cause. Running at sub-planing speeds plowing through the water places a high load on the engine.

Either plane out or run at a slow speed nothing in between. Faulty Temperature Gauge or Alarm. Marine flush adapters termed earmuffs in boating circles allow outboard motors to receive cooling water from a garden hose whenever the motor must be run out of water.

They consist of two flat opposing rubber cups one with a hose connection on both sides of a long U-shaped bracket that allows them to seal against. Start the motor and then run it until blue water comes out of the exhaust 15 seconds then turn off the mixer and then the motor. Wait for a couple of minutes and then turn the dial to Flush on the Salt-A-Way mixer and then run the ski for another 30 seconds or so until clear water comes out.