Completing navigation is not just a time to put the boat in the garage, but a critical period to prepare the equipment for long downtime. conservation of the 2t outboard motor During the winter, the vehicle can extend the life of the unit by years and avoid costly repairs in the spring, and many owners underestimate the risks of leaving the equipment as it is, forgetting that the residue of fuel and moisture inside the carburetor and cylinders can cause irreparable damage in a few months of rest.
Preparing for winter storage requires a systematic approach and an understanding of the physical processes that take place inside the home. two-strokeCorrosion, piston ring acidification and fuel dissection are the main enemies we will be fighting, and unlike the four-stroke counterparts, two-strokes have their own nuances of lubrication and exhaust that need to be taken into account when performing maintenance work.
In this article, we'll go through each step in detail, from the discharge of fuel to the treatment of the outer surfaces with anticores, and you'll learn why you can't just drain the gasoline and forget about the engine, and what special compounds are really needed. conservation This ensures that your engine starts the first time next season and runs at the same power as the day you bought it.
Essential tools and supplies
Before you start, you need to prepare the workplace and all the necessary components. Lack of the right tool at hand can delay the process or lead to poor performance of operations. engine-chemistry.
Pay special attention to the choice of oils and stabilizers. Cheap analogues may not have the necessary anti-corrosion properties or evaporate too quickly, leaving parts unprotected. Below is a list of what you should have at hand before starting.
- 🛠️ A set of wrenches and screwdrivers for dismantling candles and casings.
- ⚙️ Specialist preserver for two-stroke engines (for example, Yamalube Storage Oil or analogues).
- 🧪 Fuel stabilizer to prevent the decomposition of gasoline in the float chamber.
- 🧼 WD-40 or similar penetrating lubricant for processing external contacts.
- 🪣 Capacity for draining spent fuel and washing liquid.
⚠️ Warning: Never use pure gasoline or diesel for long-term preservation of the internal cavities of the engine, as they flush the oil film and contribute to corrosion.
It is also important to prepare a rag that leaves no pile and gloves to protect your hands from aggressive fluids. If you plan to remove the motor from a transom, make sure you have a reliable stand or stand to install it in an upright position.
Primary training and external examination
Before starting the internal work, the engine must be thoroughly washed and inspected. Salt, dirt and silt accumulated over the season are excellent conductors of moisture and accelerators. corrosionWash the outer surface with fresh water using a soft brush to avoid damaging the dyewoot paint coating.
After washing, carefully examine the condition of the diewite, propeller and anti-cavitational stove. The presence of chipped paint or deep scratches requires immediate repair, because this is where the destruction of the metal begins. If you find damage, clean it to metal, degrease and coat it with a layer of corrosion-resistant soil or paint.
Special attention should be paid to the condition of the datateam and the presence of foreign objects in the water intake, often there are algae or small stones that can damage the impeller pump on the first run, check the integrity of rubber elements, such as gums and seals, for cracks.
- 🔍 Check the tightening of all visible bolt joints, especially the motor attachment to the transom.
- 🌊 Make sure that the control cooling hole is free of contamination.
- 🔩 Check the data for dents that may have formed when hitting the bottom.
After completing the external inspection, wipe the engine dry. moisture should not remain on the surface, especially in places where metal and plastic dock, where condensation can form during temperature changes.
Conservation of the fuel system and carburetor
The fuel system is the Achilles heel of any It's a carburetor engine that's stored for a long time, and modern, environmentally-additive gasoline has the ability to decompose and oxidize, forming a resinous plaque that completely clogs the chicklers, so conservation is fuel management.
There are two main approaches: completely remove the fuel or stabilize it. If the engine will last longer than 3 months, it is preferable to fully generate fuel from the tank and carburetor. stabilizer.
⚠️ Warning: The usual gasoline left in the float chamber will turn into a viscous substance during the winter, which will require complete disassembly and ultrasonic cleaning of the carburetor in the spring.
To conserve properly, add a stabilizer to the fuel residue in the tank, start the engine and let it run for a few minutes at idle speeds, allowing the mixture to pass through the entire fuel system, protecting the internal surfaces from oxidation, then shut down the fuel faucet and release the remaining gasoline in the carburetor until the engine stops.
Why can't you put fuel in the sewer or on the ground?
Pumping gasoline into soil or water bodies causes enormous environmental damage. One liter of fuel can contaminate millions of liters of water, making it uninhabitable. In addition, gasoline vapors are explosive and toxic to humans. Always pour residues into a sealed canister for later disposal at specialized reception points or use as a solvent for technical needs (tool cleaning).
If your motor is equipped with an electric starter, be sure to disconnect the battery terminals after the fuel treatments are completed. This will prevent self-discharge and possible short circuit in the onboard network.
Cylinder-piston group (CPG) treatment
The most important step in keeping the engine's heart safe is to conserve the CNG. In two-stroke engines, the oil is mixed with gasoline. In simpler engines, the oil drains into the crankcase, leaving the cylinder wall and the piston unprotected. Contact with the residue of moisture from the air leads to instantaneous rust.
To protect you, you need to create an oil mist inside the cylinder. To do this, twist the spark plugs. Inject about 10-15 ml into each cylinder through the candle hole. preservative (Storage Oil) Conventional motor oil is less effective because it doesn't have the right corrosion-resistant additives for long rest.
After the oil injection, you need to turn the crankshaft several times, and you can do this manually by twisting the flywheel nut, or by briefly turning on the starter (no candles!), the oil will spread over the walls of the cylinder, creating a protective film, and then you need to screw the candles back in so that moisture does not get through the thread.
☑️ Checklist of CNG Conservation
Some craftsmen recommend leaving the piston at the top dead point (BMT) to minimize the area of the open surface of the sleeve, but it is more important to ensure that oil is present on all rubbing surfaces, including the bottom bearing of the rod.
Reductor and Daydwitt: Protection from water and corrosion
The two-stroke gearbox is in constant contact with water, so the risk of moisture getting in through the coils is very high. When the metal cools after operation, the air volume inside the gearbox decreases, creating a vacuum that draws water through microscopic gaps in the omentums.
The first thing to do is to replace the oil in the gearbox. Even if it's not a long time, it's a must before winter. Old oil may contain an emulsion (water) that will expand when it freezes and damage the gears or body. Drain the old lubricant and rinse the gearbox with a small amount of new oil if the emulsion was in the fused.
Pour fresh. transmission oil Make sure the magnets on the corks are clean and there's no metal shavings on them, and the shavings indicate wear on gears or bearings, which requires repair.
| Parameter | Norma. | Deviation action |
|---|---|---|
| The butter | Transparent, amber | Replacement with washing |
| Consistency | homogeneous | Emulsion testing |
| Metal shavings | Absent or at least at the magnet | Defection of the gearbox |
| Smell. | Specific oily | Replacement with the smell of burns |
After changing the oil, lubricate all the external hinges, cables and traction control of lithium lubrication. This will prevent the gear shifting and turning mechanisms from souring. Pay special attention to the exit site of the datawit - there is often moisture accumulates.
Use graphite lubricant for the propeller slits, which will prevent the propeller from "cracking" to the shaft and make it easy to remove it in the spring without the use of brute force.
Storage rules and spring launch
The final step is to properly store the motor, ideally vertical, on a stand or on the transom of a boat, and horizontal storage is only allowed in the factory packaging or on a special stand that excludes pressure on the datawit and carburetor.
The storage area should be dry, ventilated and protected from direct sunlight. Ultraviolet destroys plastic and rubber elements. Cover the engine with a breathable cover to avoid condensation accumulation, but do not use a sealed plastic film that will create a "greenhouse effect".
⚠️ Warning: Do not store the engine in a room with a gas boiler or furnace running. The combustion products contain sulfur, which, combined with humidity, forms an aggressive acid that quickly corrodes aluminum and copper.
In the spring, before the first run, do a visual inspection, check the oil level in the gearbox, the condition of the candles and the fuel hoses, and if you did everything right, the engine will require only minimal preparation for the season.
The main purpose of winter conservation is to displace moisture from friction nodes and protect metal surfaces from oxidation with the help of an oil film and special compositions.
Compliance with these simple but important rules will keep your equipment in service for decades. Savings on quality consumables in winter can result in major engine repairs in the summer, so do not neglect the manufacturer's recommendations.
Can I store a 2t motor in a horizontal position?
Store a two-stroke outboard motor strictly horizontally (lying on its side) is not recommended unless it is packed in a factory container with locks. In this position, the oil from the crankcase can leak into the cylinder or muffler, and when you start it there will be a hydraulic shock or smoke. It is also possible to leak the remaining fuel from the carburetor. If there is little space, it is better to hang the engine vertically.
Do I need to drain the oil completely from the gearbox for the winter?
Yes, before wintering, the gearbox oil is better replaced, even if it's still fresh on the motor clock, it could get moisture through the glands during the season, the water is heavier than oil and accumulates at the bottom, causing corrosion of the gears when it's down, and oil replacement is the best prevention of expensive gear repairs.
How often should I scroll the engine during winter storage?
Scrolling (re-re-conservation and re-conservation) is not required during the winter if you have properly treated the cylinder with preservative oil. The protective film is maintained for a long time. Excessive manipulation can only harm. Just check the condition of the engine visually before the start of the season.
What is the difference between the preservation of a 2t engine and a 4t?
The main difference is in the CPG lubrication system. In 4t engines, the oil is in the crankcase all the time, and in 2t it is mixed with the fuel. So for 2t it is critical to create an artificial oil film manually through the candle hole, because after the discharge of gasoline, the cylinder remains practically "dry." Also, in 2t engines there is no separate oil filter that needs to be changed.