Follow Us
Archive for the ‘Marine Engine oil’ Category
Scratches on a new vehicle, whether it’s a car or a boat, really irritate me. I recently found some scratches on my brand new WaveRunner which absolutely drove me nuts. Fortunately, I have plenty of experience fixing scratches to look brand new.
Using epoxy fillers, toothpicks, sandpaper, sealant, touch up paint, and polyurethane clear coat, I can fix just about any scratch. It is very time consuming to apply and let the different fillers dry, and then sand them down and paint, but the results are completely worth it. I do need to go to the store to pick up some matching paint, so I suppose while I’m there I’ll also purchase some WaveRunner oil.
I’ve recently been researching inflatable boats to use as ship-to-shore tenders. A top priority for me is ease of transport rather than speed. For that reason, a soft bottom roll-up inflatable boat was recommended to me.
It is supposedly compact and lightweight. No special equipment or trailers are needed; in fact, the whole boat rolls up into a bag that holds everything needed. The particular boat I’m looking at, by Mercury Marine, seats three people, has slat floorboards for stability, and an ABS-coated transom. A two stroke engine that takes Marine engine oil can be attached to the rear of the boat to easily take me out to where my larger boat is docked.
Mercury manufactures a number of outboard motors with carburetor intakes. Learning to clean these carburetors is a moderately difficult endeavor. You will need: various screwdrivers, shop rags, jet pick, safety goggles, compressed air and air nozzle, and a carburetor cleaner. It doesn’t hurt to pick up some Mercury 2 cycle oil while out getting supplies.
Begin by removing the brass screws on the side of the fuel bowl with a flat screwdriver. Drain the fuel from the carburetor and use a shop rag to absorb the excess. Using a number two Phillips screwdriver, remove the four fuel bowl screws and lift the bowl up and off the carburetor body. Take your jet driver and remove the main jet and pilot jet, taking care not to damage the brass jets.
Why use marine engine oil? Isn’t all oil the same? In a word: no. The oil you use in your car is not suitable for your boat.
Boats have a closed loop cooling system, unlike automobiles. Boats, obviously, are subject to water corrosion and buildup. For those reasons, marine engine oil, with its high anti-corrosion properties, is better suited for boats than regular engine oil used on cars.
In the past, boat owners have used automobile oil to lubricate their outboard motors. If you really care about your boat, then it is best to use marine engine oil. Simply put, cars and boats have to operate in different environments and need oil that suits those environments.
To elaborate, boats, unlike cars, have a closed loop cooling system. Water causes corrosion, not to mention running a boat for an extensive amount of time can cause water and fuel build-up. That’s why marine engine oil, unlike automobile oil, has higher anti-corrosion properties
When it comes to keeping your watercraft in working order, there is a long maintenance check list. Today we’ll focus on two parts of that list: power trim and tilt fluid, and lubricants. Be sure to regularly inspect the lower unit to highlight issues. To prevent such issues from arising, keep the prop shaft well lubricated and top up levels of trim fluids. Yamaha products, like Performance Power, are preferable.
As far as lubricants, Yamalube 2-m oil or 4-m oil is recommended for two-stroke and fours-stroke engines, respectively. It is imperative that all replaced or repaired components be bedded correctly, and then sealed and protected with lubricant. Lubricating parts also aids in motion and can extend the life of an engine.
Two-cycle oil needs to be added to gasoline for both two-stroke outboard engines and air-cooled two-stroke engines. There are notable differences between the oil specifications for the two applications. Let’s start by examining the differences between outboard and air-cooled two-stroke engines:
Outboard engines operate at constant speeds. Two-stroke outboard engines also operate in water, meaning they have a constant supply of coolant which is not re-circulated. Air-cooled engines, on the other hand, are used in spurts; turned on and off or left idling. These engines typically have smaller displacements than outboard engines, and are frequently overloaded. For , Mercury 2 stroke oil is recommended.
Air, fuel, compression, and spark are the four main elements that keep a two-stroke engine running. If any one of the four elements is missing or damaged, then the engine will not go. A loss of compression can be caused by several reasons, but the most likely culprit is a faulty seal between cylinder, piston or piston rings. Fortunately, this is an easy problem to spot and fix.
Start by removing all of the spark plugs from the motor and ground those spark plugs against the engine case. Take a compression tester and screw it into the spark plug hole of the first cylinder to be tested. Twist the throttle and kick the motor over a few times. Check the tester’s gauge; if the gauge reads at least 100-125 then you’re good to go, at least on that particular cylinder. While you’re poking around the insides of your motor, consider replacing your Mercury 2 cycle oil.
Cavitation is a condition where gas bubbles form within a liquid flow because of liquid pressure falling below the fluid vapor pressure. Inertial cavitation, or transient cavitation, and non-inertial cavitation are the two most common forms. Either way, cavitation is not desirable. Good pump design helps minimize the impact of the condition.
Inertial cavitation occurs when bubbles within the fluid form and collapse in rapid succession. The sudden collapse creates a shock wave which happens frequently in pumps, propellers, control valves, and impellers. The shock waves cause damage to the mechanism and working parts. It’s important to conduct preventative maintenance, like replacing the water pump impeller every 1-2 years and using the right outboard motor oil.
One of the functions we don’t usually associate with marine engine oil is cooling. In most vehicles, the antifreeze concoction in the cooling system only does about 60% of the work when it comes to cooling the engine. Not only does oil cool the engine as it pulses through the system, it also controls the temperature by reducing friction.
Many of the grooves and spaces in-between the fittings on the engine leave microscopic openings in the system where pressure normally would be able to escape. However, the oil works its way into these gaps and creates a seal, effectively improving the engine’s efficiency. Additives in the oil now help reduce foam, allowing the oil to function to its full capabilities.