Ben Walsh (beamer)
13.06.2021 4:12:20
What does the poppet valve do on a Mercury outboard?
See full version: How hot should a Mercury outboard run
What does the poppet valve do on a Mercury outboard?
Furthermore, what happens if an outboard motor overheats? The most common cause of outboard motor overheating is water pump failure. Lack of raw water flow and lack of fresh water can cause water pump failure. Lack of fresh water can be noted if there is a large increase in temperature between the inlet and and outlet of the heat exchanger. more
In this regard, is the water coming out my outboard supposed to be hot? more
Re: Operating temperature for outboards (60°-63°C).
Increasing engine RPMs to a fast idle and higher should produce a strong stream of water exiting the outboard. The water coming out of the tell-tale is usually warm. If it's hot, that's often an indication of a blockage somewhere in the cooling system (and the flow probably won't be as strong as it should, either). [links]
) valve is sort of a water-pressure regulator for the cooling system on an outboard engine. At slow rpm's the pressure from the water pump is pretty low, so the poppit stays closed, and allows all the cooling water from the impeller to circulate thru the engine cooling system.
The opening and closing of the thermostat enable your car engine to run at optimum temperature. In case the thermostat becomes stuck open, there will be a steady flow of coolant to the engine which will not allow the engine to reach a certain level of heat resulting in performance issues. If the reverse is the case, there will be no coolant passage to the radiator for cooling purposes, resulting in engine Overheating. Knowing the symptoms of a bad thermostat will help safeguard the life of the thermostat and engine.
Step 3: Remove battery terminal cables. Ensure you remove your battery terminal cables when working under your hood. However, if your car computer requires programming after removing the battery terminal cables, you may consider leaving the terminal cables in place. here
For instance, when you turn on your engine and rev it, the thermostat will prevent the coolant from passing through the radiator because the radiator cools the coolant. But when the engine gets heat up, the thermostat will gradually open up allowing the coolant to pass to the radiator for cooling purposes.
The outboard stator’s job is generating voltage, but when your regulator is not responding accurately eventually, the stator gets damaged. more
Inaccurate or erratic reading is the main precise sign that directly hints at a faulty voltage regulator.
Initially, a weak or damaged water pump causes that overheating issue on an outboard regulator. That intense heat eventually burns out the regulator or causes built-up fire on the outboard.
In both scenarios, your engine may not initially show any abnormality, but gradually you will notice the difference in performance.
Thus, you now know for sure whether the trigger needs to be replaced or not. For better understanding, you can watch out this YouTube video. [links]
However, the cost can vary based on where you live. I mean that I don’t know the exact amount the mechanics in your area charge.
It obstructs one or multiple cylinders from getting enough voltage or sparks. As a result, you can get a shaky start or run, and misfires. more
Lastly, I want to share a diagram of the internal wiring so that you can understand the working better. It would also help you find out whether the trigger is the culprit or something else is. here
However, it is not the only one.