How does the Onboard refueling vapor recovery system work?
Onboard refueling vapor recovery. Jump to navigation Jump to search. An Onboard refueling vapor recovery system (ORVR) is a vehicle fuel vapor emission control system that captures volatile organic compounds (VOC, potentially harmful vapors) during refueling.
Where do fuel lines go on an inboard boat?
Nowadays, most manufacturers use shut-off valves on the water separators and have the lines above the top of the tank. This has eliminated the need for anti-siphon valves. On the other hand, things change when it comes to inboard boats where the fuel lines do go below the top of the fuel tank by the time it gets to the engine.
Why does my boat keep running out of fuel?
Either the engine’s lift pump has failed, the boat is out of fuel. Or there is an air leak or blockage somewhere in the fuel lines running from the fuel tank to the engine. It’s important to remember that there are many different types of lift pumps.
Where does the fuel come from in a boat?
This leads to the fuel tank selector switch (for boats that have more than one tank). Or, if your boat doesn’t have a selector switch, it should lead to a fuel water separator. Once the fuel passes through the water separator, it then comes out the other side into a primer bulb or straight to the engine. This is exactly where we started!
What is the model number of a hp Mariner?
Mariner Model Year Guide Model HP Serial Number Year 2 M 646-15961 – 646-20675 1974 2 M 646-20676 – 646-26575 1975 2 M 646-26576 – 646-37010 1976 2 M 646-37011 – 646-008710 1977
What does the injector do on an outboard engine?
The injectors job is to take the pressurized fuel and atomize it when it squirts it into the cylinder. That simply means that it turns it into sort of a mist of fuel opposed to a stream of fuel. This makes for easy combustion when the spark plug ignites. Thus, an explosion that drives the piston down, keeping the engine running.
How to find the year an outboard engine was made?
Please select the criteria above to find the year your outboard engine was manufactured.
What happens when your outboard fuel pump goes bad?
When the outboard fuel pump is bad, it operates similarly to when the boat runs out of fuel. You might notice sputtering or misfiring before the engine cuts out completely.