The cooling system on an outboard is a very simple and compact application. Water is inducted through the lower unit by a water pump impeller, and then forced upward to circulate throughout the powerhead, and eventually exits through the exhaust system.
Should water come out exhaust outboard?
It’s normal for cooling water to also exit through the exhaust. It’s part of the cooling system (in addition to the pee stream). And when you aren’t moving, the exhaust might bubble out from the lower unit because it also exits out through the prop while underway.
Do all outboards have a pee hole?
Outboard Motor Isn’t Peeing. … Most outboard motors are equipped with a cooling system using outside water. Outside water is circulated through cooling passages before leaving through the motor’s “pee hole”.
How much water should be coming out of outboard?
Active member. Re: How much coolant water should be comming out of my outboard? Usually the cooling water pisses out of a small hole under the power head. There should be a hols approx 3 mm diameter facing down and a bit out.
Why is there no water coming out of my outboard motor?
Turn the engine off and check for anything, such as weeds or trash, which may be blocking the water intake. If a foreign object is present, remove it and restart the engine after it has returned to normal temperature. In most outboard motors, the water output is a small tube-like structure that can easily get blocked.
How long can a Outboard run without water?
How Long Can an Outboard Run Without Water? An outboard motor’s water pump will be damaged in as little as a few seconds without a water source. Depending on the size of the outboard engine itself and ambient temperatures, it may be able to go a few minutes without damage.
Can you run a outboard motor without a thermostat?
Yes, you can temporarily run your outboard without the thermostat and not harm the engine. No, you can not remove the thermostat and continue running the engine for long periods of time without causing harm to the engine.
How do you unclog a pee hole on an outboard motor?
Put muffs on it and turn water on, it should fill system and discharge some water through that hose. That will tell you pretty quick if your plugged down stream to the pump. Also run the seedeater line from out side back in and look for any small debri that might come out. Takes very little to clog pee hole.
Why does my outboard motor smoke?
An Outboard Motor smokes because it is burning oil. … Four Stroke Engines burn oil at startup mainly because of oil left in the cylinders or all the time with an oil leak. There are a couple of tricks that can be done to reduce the amount of smoke that an engine burns and here are your best options!
Why is my outboard not peeing?
Re: Outboard suddenly not peeing
The impeller is probably broken. Don’t run it anymore with no water flowing!!!! Take the lower unit off, disassemble the water pump, and you should know right away if something is amiss. I’m sure if you go to a merc dealer you can buy a water pump kit to replace the broken parts.
Can you start an outboard out of the water?
You can run an outboard for a very short time out of water, but the impeller is running dry and will shred very rapidly.3 мая 2017 г.
What happens if an outboard motor overheats?
The cooling system keeps the oil temperature down so the oil can lubricate the internal parts of the engine. Overheating ruins the lubrication and the metals parts start melting and sticking together. Or they just break apart with a big bang.
How do you test an outboard motor out of water?
Step 1: You can test an outboard motor without access to a boat or ocean. Simply mount it to a sturdy platform, place a big bucket underneath it and fill it with water so the propeller is fully submerged. Step 2: Clean out the gas can of old gas and oil mixture because it may be water contaminated.
Can you run a Yamaha outboard out of water?
Unscrew the garden hose connector from the fitting on the lower cowling, hook up a hose to the connector, open the spigot and let the clean, fresh water wash the contaminants out of the outboard’s water passages for 10-15 minutes. … Do not start the outboard out of the water.
How do I know if my outboard thermostat is bad?
Symptoms of a Bad Thermostat
- Engine overheating, particularly at idle and low running speed.
- Engine going into limited power or slow mode to mitigate against overheating.
- Increased fuel consumption.