Operating an outboard motor is not only a pleasure to day on the water, but also a constant responsibility for the technical condition of the unit. two-stroke It's a quality lubricant that prevents the piston group from getting scalded and the crankshaft bearings from wearing, and unlike the four-stroke shaft, the oil burns with the fuel, which imposes special requirements on its composition and the purity of combustion.
The wrong choice of lubricant can lead to rapid failure of expensive components, the formation of scorching on candles and even jamming of the engine on the water. TC-W3 And we'll use car oils to keep the technology safe, and let's see what the nuances are about this and how to extend the life of your iron horse.
Why you can not pour oil into the motor
Many newcomers make the fatal mistake of pouring into the fuel tank a conventional two-stroke car oil designed for motorcycles or chainsaws. boat-engine They operate in completely different temperature and loading conditions, and they also have a specific cooling system with off-shore water. Automotive oils often contain additives that, when burned, form solid soot, dangerous to the prechamber space of the outboard motor.
And the key difference is biodegradability and the ability to mix with water. mineraloil The car will create an oil film on the surface of the water, which is environmentally harmful and may be prohibited by the laws of many countries.
⚠️ Attention: The use of API TC (for motorcycles) oils in outboard motors can lead to the fouling of the exhaust windows with soot and overheating of the piston, since they are not designed for long-term operation at constant speeds under load.
The specificity of the screw in the water creates a constant load on the crankshaft, which can not withstand conventional lubricants. They can lose their properties when in contact with moisture or, conversely, burn too long, clogging the muffler. So the use of specialized products is not a marketing move, but a marketing move. technicality to save the engine life.
Quality standards: TC-W3 and JASO
When choosing a lubricant in a store, the first thing to look at is the labeling on the canister. NMMA TC-W3This acronym ensures that the product has passed corrosion protection, exhaust purity and lubricating ability at high temperatures. Having this logo on the label is the first sign that you have the right product in front of you.
Japanese standard JASO It is also common on packaging, especially for Asian-made engines (Yamaha, Tohatsu, Suzuki), the JASO FB, FC and FD classification indicates the level of smoke and detergent properties. For modern outboard motors, the best choice is the FD class, which provides minimal gas formation.
- 🌊 NMMA TC-W3 The basic standard for all outboard motors, which guarantees protection against rust and corrosion.
- 🇯🇵 JASO FD - the highest Japanese standard, providing excellent washing capacity and low exhaust smoke.
- 🌿 EPA / CEC - Markings indicating the environmental friendliness and rapid biodegradability of oil in an aquatic environment.
It's important to understand that the standards are constantly updated, and if you buy oil for a modern injection engine with an E-TEC or OptiMax system, conventional mineral mixtures may not be suitable. synthetic oils Ignoring these requirements may result in the loss of warranty.
Mineral, semi-synthetic or synthetic
The basic basis of the oil directly affects its cost and performance. Mineral oils They are cheaper but prone to more carbon monoxide and require more frequent replacement or use in older engines. For older engines built before the 2000s, the "mineralka" is often the preferred option because of its higher viscosity and ability to seal gaps in worn friction vapors.
Semi-synthetic They're a trade-off between price and quality, and they have some synthetic components that improve their lubricating properties and reduce smoke, and they're a great choice for the medium-powered motors that are used in recreational rolling on weekends.
Synthetics are the pinnacle of the evolution of lubricants, and these oils provide:
- 🛡️ Maximum protection from bullies during peak loads.
- 🧹 Almost complete combustion without the formation of sodium on candles and pistons.
- ❄️ Easy start of the engine in the cold season due to the low freezing temperature.
Can I mix mineral and synthetic oil?
In an emergency, add synthetics to mineral water (or vice versa) if both oils are TC-W3 and are made on the same basis (for example, both on a mineral or both on a synthetic basis). However, regular mixing of different types of bases is not recommended, as this can lead to precipitation and loss of lubricating properties.
If your engine is new or in perfect technical condition, you should not save on the basis. Synthetic oils They significantly extend the life of the spark plugs and reduce the number of carburetor cleanings, and in the long run, the difference in the price of the canister is paid off by the absence of problems with the fuel system.
Mixing proportions and table of preparation of the mixture
The most critical thing about two-stroke maintenance is the proper preparation of the fuel mixture. The breakdown of proportions leads to two extremes: dry friction and bullying occur when there is a lack of oil, candles coking, silencer soaking and power loss. Modern motors require precision, so you must use measuring tanks or syringes.
The ratio is usually indicated on the oil canister lid or in the engine instructions. The most common ratios are 1:25 (for older engines), 1:50 and 1:100. For modern engines, the standard is 1:50, that is, 20 ml of oil per 1 liter of gasoline.
| Proportion (Oil:Penzines) | Oils per 1 litre of petrol (ml) | Oils per 5 litres of gasoline (ml) | Oils per 10 litres of gasoline (ml) |
|---|---|---|---|
| 1: 25 | 40ml | 200 ml | 400ml |
| 1: 33 | 30ml | 150 ml | 300 ml |
| 1: 40 | 25ml | 125 ml | 250 ml |
| 1: 50 | 20ml | 100ml | 200 ml |
| 1: 100 | 10ml | 50ml | 100ml |
When mixing, first pour the gasoline into the canister, then add the required amount of oil. shake it up Do not pour the components directly into the engine tank - there the mixture may not mix evenly, which will lead to the operation of the engine on the "depleted" mixture in the first minutes. Use only clean canisters designed for storing fuel.
☑️ Proper preparation of the mixture
Features of the new engine breaking in
The first hours of operation of the new engine determine its future life. During the break-in, rubbing parts are rubbed together, and the quality of the lubricant plays a crucial role here. Many manufacturers recommend that the first tanks use a slightly richer mixture (for example, 1:40 instead of 1:50) to provide increased protection, although modern synthetic oils often allow you to comply with standard proportions at once.
The rule of running is not to let the motor work at constant speeds for a long time. You need to vary the load: 10 minutes at 3000 rpm, 5 minutes at 4000 rpm, then again to drop the gas. This helps the piston rings to sit properly in the grooves. Full gas. In the first 10 hours of the motorbike is strictly prohibited.
⚠️ Attention: During the break-in, carefully monitor the exhaust color and engine temperature. (If there is abundant white smoke or the smell of burning, immediately stop the engine and check the proportions of the mixture).
After the first 5-10 hours of operation, be sure to replace the oil in the gearbox (if it changes according to the regulations there) and check the puff of all screws, as the vibration when laundering could weaken them. It is also recommended to replace the spark plugs or at least check their color - it should be brick-brown. Black coating indicates a rich mixture, white - poor.
Storage of fuel and mixtures
The finished fuel mixture cannot be stored forever; the gasoline is oxidized, and the oil can precipitate or lose its properties. The maximum shelf life of the finished mixture in a sealed metal canister in a cool place is 3 monthsIf the canister has been opened or stored in plastic containers in the sun, the period is reduced to 2-3 weeks.
Use special containers that are resistant to the aggressive effects of gasoline. Conventional plastic water bottles can break down, allowing vapour to pass and contaminating fuel. It is better to purchase certified canisters labeled "Fire Safety" or similar.
Add a stabilizer (such as a Fuel Stabilizer) to your fuel can if you plan to store the boat for more than 2 months, which will prevent the gas from dissecting and the carburetor from forming resins.
If you're out of the season and you've got a mixture in your tank, don't leave it for the winter, drain the fuel, make the engine residues to a complete stop (this will clear the carburetor), or can the engine with a special compound, and stagnant gasoline turns into a viscous substance that completely clogs the carburetor's jelly, and in the spring you have to spend money and time cleaning.
Frequent errors in selection and use
One of the most common mistakes is to buy oil for spilling. Gas stations or garage co-ops often sell lubricant from large barrels. Nobody can guarantee that the barrel contains exactly what is written on the label, and how long it is stored there. Buy butter only from the factory. sealed with protective membranes under the lid.
It's also a mistake to ignore the color of the oil. Many of today's two-stroke oils have a blue or green dye, so that the user can see that the mixture has entered the engine, and if you see that the oil in the tank has changed color or become cloudy, it's best not to risk it and put it in the engine.
- 🚫 Buying oil without TC-W3 labeling for water equipment
- 🚫 Use of expired fuel (over 3-4 months).
- 🚫 A bay of pure gasoline for check or short distance (even 1 minute of operation without oil can kill the engine).
Remember, the cost of a good oil canister is not commensurate with the cost of repairing a piston group. Saving on lubrication is the cheapest way to ditch an outboard motor. hanger-engine, as indicated in the service book.
Oil quality and freshness are more important than the brand of the engine: even the most reliable engine will fail when using a bad mixture.
How often should I change the oil in the gearbox if I use synthetic oil in gasoline?
The frequency of oil change in the gearbox does not depend on the type of oil burned in the engine. This is usually done once a season or every 100 motor hours. However, if you notice an emulsion (the oil has become the color of coffee with milk) - then the leakage of the osteoils is broken and the water has got inside, in which case you need to replace immediately, regardless of the mileage.
Can I use oil for 2t outboard motors in a chainsaw?
Technically, this is possible, because the TC-W3 standard is higher than many chainsaws. However, it is not economically feasible because of the high price of boat oil. In addition, boat oils can produce more ash when burned in high-speed saw engines, which is not critical for a boat, but is harmful to a saw in the long run.
Why is the oil for 2t engines often painted blue or red?
Dye is added to control the mixing quality. When you shake the canister, the color shows that the oil is evenly distributed in the gasoline. Also, if colored smoke is pouring out of the exhaust pipe, it is a signal that the mixture is entering the combustion chamber. The lack of color in the exhaust when the engine is running can indicate problems with the fuel supply.