What to fill the lawnmower
How much oil to pour into the grass trimmer per liter of gasoline
Gasoline mowers. quite common tools, used by owners of garden and household farms for mowing grass and making hay. common names for tools are the terms “grass trimmer” and “lawnmower“. The main difference is hidden in the design of the motor. the expensive segment of the devices is equipped with four-stroke models, while the cheap ones are two-stroke. The latter option has advantages, including low weight, ease of use, as well as low cost.
The most important condition for the work of two-stroke models. is the preparation of the fuel mixture, based on the manufacturer’s defined proportion of gasoline and oil. The motor’s simplistic design does not provide a separate lubrication channel, so engine oil is added directly to the gasoline. Violating the correct proportion leads to a significant reduction in the life of the tool and even to its failure. Let’s understand what composition is required for gasoline trimmers, how to properly prepare the mixture and what it can affect.
Fuel mix for two-stroke engines
Grass trimmers, which are equipped with a two-stroke motor, do not have a separate system designed for oil supply in order to lubricate the rubbing parts. For this reason, it is not necessary to fill such devices with pure petrol but with a mixture of fuel and engine oil. The latter should be specially designed for two-stroke engines. The use of automotive engine fluid will lead to premature engine failure.
Preparation of fuel mixture for two-roller engines
Two-stroke lawnmowers should be fuelled with gasoline AI-92. When using AI-95, you may experience engine overheating and the unit may not run smoothly. Mix petrol and oil in the proportion 50:1, where 50 is fuel and 1 is oil. It turns out that you need 20 ml of oil for every 1 liter of fuel.
If the motor is worn out or the tool works with a high load, the proportion is 25:1. If there is not enough oil, you get burrs on the cylinder walls and piston surface. Then the piston ring will collapse, causing the engine to seize. Too much petrol is not so critical, but it can lead to fouling. The piston ring would then get cramped and this would reduce the power of the machine.
Oil and petrol proportions for the fuel mix
What kind of petrol to put in a VIKING lawnmower?
Lawnmower “VIKING” electronic and gasoline self-propelled: reviews
The Austrian company VIKING speaks for itself for the first time in 1981. It was founded by Heinrich Lechner. In the small town of Kufstein, he built garden shredders. The world saw the first VIKING lawnmowers in 1984. Beginning in 1992, the above-mentioned company began to develop intensively.
The reason for this is thought to be the connection of VIKING and Steele. VIKING has been making chainsaws for years. But since 2001, the company VIKING can boast a great number of lawn mowers, which are in great demand all over the world. Today, this brand has become a favorite in the production of garden tools.
What is the difference between VIKING lawn mowers?
First of all, it is fundamental to note that the buyer has the opportunity to pick up a lawn mower, which operates either on gasoline or on an electronic engine. There are also battery models.
With an average of 4 kW. The working width can vary, as well as the height of mowing. The cutting system is usually centralized.
If we consider small models, they are equipped with an eight-step mechanism.
The grass catcher box is supplied in a set of sufficiently high quality. Their volume is mainly depending on the power of the lawnmower. All models have reinforced frames. The lawnmowers do not practically require any maintenance.
It is easy enough to clean the blades after the lawn. The wheels of the devices are double-bearing. This considerably increases their service life.
Repair of lawn mower “VIKING” can be made only in the service center.
Reviews of the petrol VIKING MB 248
This gasoline mower VIKING reviews have excellent. Many customers prefer this model because of the low fuel consumption. The efficiency of the machine is still in the normal range. The power of the marked mower is 4 kW. Working width of the blades. 46 cm. Mowing height is a minimum of 25 mm.
It can be adjusted with a lever. The cutting system is centralized. The power of the device can be changed in steps. Standard lawn mower VIKING MB 248 has a metal blade. Producers have provided a total of 8 different modes. For country houses, this mower is great, and on average it can handle an area of 1200 square meters. м.
What do they say about the ME 235 electric model?
The marked VIKING lawnmowers have mostly positive reviews. This model is very easy to handle. The handle is set quite high quality, and to keep control of the device comes out with jewel-like precision. In maintenance this mower actually does not need.
The blades of the device are very sharp. The lawnmower copes with small grass successfully. Of the shortcomings, it is necessary to emphasize the low power of the unit. It is therefore more suitable for small lawns. Electricity consumption of this modification is within the norm.
The engine of the ME 235 breaks down very seldom.
MB 448 Lawn Mower Overview
Among other devices this VIKING self-propelled lawn mower is notable for its compactness. The cutting system in this case is rotary.
Because of that, the lawnmower is capable of working for long periods of time without interruption. The nominal power of the marked machine is in the range of 3 kW. The cutting height is only 20 mm.
Working width, in the eyes of many, is good and is equal to 30 cm.
The maximum mowing height the user can set 60 mm. Engine in this case, the manufacturer has an asynchronous type. Wheel drive is rear-engine type.
Deck at the MB 448 mower is made entirely of plastic, but for all that, it is strong enough and the load can withstand a huge. In terms of noise level this model is not different from conventional lawnmowers.
MV 448 emits 50 dB at 5 meters. Only one nozzle is provided as a standard feature. Blades are installed by the manufacturer of the blade type.
Benefits of the MV 2
Consumers value this model for its superior performance. Can work uninterruptedly for up to 3 hours. With all this engine does not actually overheat. This was achieved by a good cooling system. But this modification also has disadvantages.
What kind of petrol to fill a VIKING lawnmower, and what oil and in what proportion how often to change the oil. First it is necessary to emphasize quite thin blades in the kit. To adjust the height in this model comes out with great difficulty.
This is because the lever is held firmly in place. It is also important to note the high vibration. If you work on an uneven surface, the shaking created a fairly large. As a result, the handle starts to vibrate very.
Keeping under control in this situation is a big challenge with the MB 2.
VIKING lawnmower: Oil change at the end of the season
Oil change at the end of the season. Lightweight four-stroke engine with no oil.
VIKING MA 339 petrol lawnmower
This model can boast just great features. The power of this machine is 4 kW. The grass catcher bag is quite voluminous. During operation, it disconnects very quickly for cleaning.
The cutting height can be adjusted. The cutting width of the blades is optimal. The cutting system of the lawnmower has a rotary cutting system. The standard package includes only one mowing head. A total of five modes to choose from.
Height adjustment of the handle on the MA 339 is also possible.
Consumer reviews of the MB 3
This VIKING lawnmower is not suitable for everyone, but it does offer certain advantages. Comfortable operation is the first thing consumers notice.
Adjusting the speed of the blades is quite straightforward with a single selector switch. The off button is in a convenient place and this is good. From the disadvantages should be noted quite large dimensions of the device.
Features of filling the brushcutter
When the mixture is ready and ready to use, it must be carefully poured into the fuel tank. Since gasoline is poisonous liquid, when working with it should follow the safety. Work must be done in calm weather and away from other people. It is also necessary to use a funnel or funnel to fill the tank with gasoline. If not, the mixture can spread out, go unnoticed and become inflamed when the engine heats up.
the fuel bank itself should be cleaned from external contamination and only after that unscrew the cap to fill up with ready fuel. After filling the fuel tank should not remain open, as insects or soil can enter the tank and clog the fuel filter. Fuel must be poured into the tank of the marked mark or less, and then during operation refill.
Keep the lid on the container tightly closed during storage. Store fuel in a cool place, out of sunlight. Keep in mind that during prolonged storage the oil liquefies and loses its characteristics.
The next step in the maintenance of the lawnmower: cleaning
Quality lawnmower maintenance is impossible without elementary cleaning of the deck and the engine from the grass.
De-growing the deck
Grass itself has an incredible corrosive effect on the machine, so it is necessary to periodically clean the DEKO. It is important to understand that the wet lawn must not be mowed in any case, because then the negative impact will be doubled.
Dry vegetation itself will fall away from the object, and to clean it as best as possible with an air compressor or blower. Some models are equipped with a special flushing connection, which saves the user the trouble.
Getting rid of vegetation on the motor
As mower motors are aided by air cooling, the entire system will only work properly if the fins are not contaminated. Otherwise you can expect overheating and a rapid breakdown of the device.
The ribs can be cleaned by removing additional engine parts and using compressed air. Even a soft small brush will work perfectly, which in this case demonstrates excellent efficiency.
The role of oil in a lawnmower motor
Gasoline lawnmowers can be equipped with either four-stroke or two-stroke motors (ICE). The rotation/movement of the cutting elements is powered by the energy provided by the engine. The energy is generated by the expansion of gases produced during the explosion of gasoline or fuel mixture in the combustion chamber. The very compression of the created gases is provided by the movement of the piston. In general, the simple principle of an internal combustion engine.
In order for such a system to function properly as a whole, there must not be too large gaps between its mating elements. If the gap dimensions are increased due to the wear of working nodes, it will lead to deterioration of the entire engine, and over time to the simple inability to start it. The problem will be that the system will not be able to achieve the required pressure to burn the fuel mixture mixed with atmospheric air.
The purpose of engine oil is to cover the engine components with a thin film in order to slow down their wear process, as well as to prevent the formation of burrs on the metal surfaces of the parts mated with each other. This is the primary function of oil in the operation of the gasoline lawnmower engine. However, it is worth understanding that oil does not completely stop the destruction of working units, caused by their friction between each other, but only significantly slows down this process.
In addition to reducing the friction coefficient between the mating working parts of the engine, the oil contributes to:
- Providing better cooling of the drive unit during operation, while increasing the level of heat exchange processes between the atmospheric air and the metal;
- Keeping the motor running at its peak performance level, which increases efficiency and reduces operating time;
- Protects the drive unit metal from corrosion if the machine is not used for a long time during the cold season.
The engine oil is therefore a special material that can provide trouble-free operation of the engine and other systems of the mower. If the quality of this material is neglected, the apparatus becomes more susceptible to various breakdowns.
The only difference is that the stroke on a four-stroke motor is two strokes, while the stroke on a two-stroke motor is four
These engines have much in common in their operating principles. The peculiarity of the difference lies only in the fact that the working stroke of the two-stroke motor occurs in two strokes, and the four-stroke. in four. One stroke means a single downward or upward movement of the piston. Two strokes per revolution of the crankshaft. The stroke of the piston is the movement of the piston during which the energy of the gases is converted into useful engine work (rotation) as a result of the combustion of fuel.
Two-stroke and four-stroke models differ from each other in terms of performance and design characteristics as follows:
- Two-stroke engines have about 1.5-1.8 times the power density per liter.
- They differ in the way of lubrication.
- The four-stroke motors are characterized by improved fuel economy (fuel consumption is reduced by 20-30%), and exhaust gases contain fewer toxic substances.
- Different methods of feeding fuel mixed with air into the cylinder and evacuating exhaust gases. The four-stroke engines have a valve timing mechanism that opens/closes special valves at the right time, while two-stroke models don’t have it. the “exhaust” just goes through stationary holes.
- Four-stroke models are quieter.
- Two-stroke models have a simpler overall design.
- The improved lubrication system of the four-stroke models gives these engines a longer life. Also, they have a longer service life because the crankshaft turns at lower speed.
- Two-stroke engines reach maximum rpm faster and accelerate more easily.
- Periodical maintenance frequency will be easier for two-stroke models and it is quite possible to do it yourself.
- Four-stroke motors have more weight and cost more.
IMPORTANT! It is the absence of a valve timing mechanism that makes two-stroke engines simpler and easier from a structural point of view. Cylinder filling with air-fuel mixture, as well as its purging from gas, is performed by compression/expansion of the mixture and its release/intake through special holes.
Lubrication methods in various engine types
The use of oil in different types of engines for lubricating internal parts is an essential point in the maintenance process and consists in that two-stroke models are not filled with pure petrol, but with a mixture of petrol and engine oil in appropriate proportions. Such mixture, when combined with air, wraps around the piston assembly, thus lubricating the cylinder walls, together with the connecting rod and crankshaft bearings, as well as the pistons themselves. During the ignition of the fuel mixture, the oil included in its composition in tiny drops also ignites. Combustion products are converted into exhaust gas and discharged to the outside through open holes.
IMPORTANT! There are two-stroke engine models, in which the flow of fuel mixture elements (oil and gasoline) is carried out separately, but such ICEs are not installed on lawnmowers.
In a four-stroke internal combustion engine, oil is fed separately and is not mixed with gasoline in general. The lubrication process is carried out by special pipelines, valves and filter, as well as an oil pump. The filter is designed to clean the oil from the smallest metal fragments, which are formed in the process of friction of metal nodes.
It is clear from this that in two-stroke engines, the oil will be burned during operation, but not in four-stroke engines, and it remains in the system for a long period of time. This is why the performance requirements for oils differ between internal combustion engines. These include the fact that two-stroke oil should leave as little residue as possible, while four-stroke devices need the oil substance to retain its useful physical and chemical properties for as long as possible.
Learning how to dilute gasoline with oil for grass trimmer if you under or overfill the oil
If you have bought a grass trimmer, lawnmower, brush cutter, chainsaw and other types of equipment, you probably know that two-stroke motors are used as power units. These motors do not run on pure gasoline, like four-stroke engines, but on a mixture of gasoline and oil. In what proportion should gasoline be diluted with oil for grass trimmer. this is the question every dacha owner asks himself before preparing the tool to work. Let’s understand this issue in detail, as the dilution of gasoline with oil for grass trimmer affects the service life of the tool, and improper preparation of the mixture, will lead to rapid engine wear. What are the dangers of too much or not enough oil in gasoline for grass trimmer:
- If the petrol is diluted with too much oil (more than the normal amount), it produces more smoke, causes formation of soot on the cylinder walls and reduces output.This soot will cause piston wear and tear, which will be diagnosed by a decrease in performance
- If the gasoline contains insufficient oil in the grass trimmer, this is even more dangerous.After all, the working mechanisms of the engine will not be lubricated in sufficient quantity, which will eventually lead to their rapid wear (there is a rapid destruction of piston rings and jamming of the motor). If there is not enough oil in the gasoline poured into the trimmer for grass, the wear and tear of the motor will occur ten times faster
To avoid having to pay for mistakes at the cost of major engine repairs or buying a new tool, it is necessary to fill the tank with fuel of the correct consistency from the first day. You can find out the ratio in the instruction manual of the tool, because the models of different manufacturers may give different recommendations. Usually the ratio is as follows:
- 1 to 25 or 40 grams of two-stroke oil per 1 liter of gasoline
- 1 to 40 or 25-30 grams of grease per 1 liter of gasoline
- 1 to 50 is to add 20 grams of oil per liter of gasoline
The standard value is 1:50 (it is indicated on the canisters of oil for two-stroke engines), but it has to be taken as a last resort, because the manufacturers indicate the recommended proportion, and if it is not observed, the service life of the two-stroke motor is reduced.
In addition to following the proportion, you also need to learn how to prepare the mixture. After all, the option of refilling the oil in the gas tank, is categorically contraindicated, although some do so. If you bought a grass trimmer or lawnmower, you will need the consumables that you will use to prepare the mixture. Instructions for preparing the fuel mixture in the grass trimmer is as follows:
- Prepare gasoline and two-stroke oil, based on the above recommendations for lubricant and fuel selection
- In addition, you need to take a container or container for preparing the mixture. Usually a plastic bottle is used for this, which requires an appropriate approach to selecting. It has to be clean on the inside. Using a container from milk beer and other drinks is not recommended. An optimal variant is a container from under mineral water
- It is very important for the container to have a whole value, that is, 1 or 2 liter, so you don’t have to guess how much oil to put in a 1.5, 1.3, or 1.25 liter bottle, because you can easily go wrong
- You will also need a syringe, which is used as a measuring device for dosing the oil. For such purposes, an ordinary medical syringe for 10 or more cc is suitable. It is desirable that the syringe has an accurate measuring scale
- After preparing the necessary materials, you can proceed to the preparation
Instructions for preparing the fuel mixture into the lawnmower:
After preparing the fuel mixture for the grass trimmer, it remains to refuel the tool, and get to work. How to properly fuel grass trimmers, lawn mowers, chainsaws and other types of motorized equipment, let’s consider in detail.
ДOnly use fresh gasoline for dilution and use in your trimmer.
How much to fill up?
Cultivators, mini-tractors and power tillers, supplied to the Russian market, are mainly equipped with power plants Subaru, BriggsStratton, Honda or their Chinese counterparts. They can be of different capacities and hold different amounts of lubricant. How to know how much lubricant to pour from the canister, so that the four-stroke engine works in optimum mode, and from a lack of lubrication does not wear out its parts?
Lubricant consumption rates are given in the owner’s manual or in the technical documentation supplied with the machine. The table below shows individual lubricant consumption figures for the most popular engine models.
|Required volume, l|
|Subaru EX21D (7.0 liter). с.)||0,6|
|Subaru EH34B (11.0 hp. с.)||1,1|
|BriggsStratton (8.0 to 13.5 liters). с.)||1,2|
|Honda GX-390 (8.0-13.0L. с.)||1,1|
It is easy to fill with engine grease by checking the amount using the dipstick on the plug. The minimum level is practically limited by the length of the dipstick itself, and the maximum level reaches the threads of the drain hole. You can also be guided by looking into the crankcase opening.
As a rule, a single-axle tractor or skid steer with a 6-8 hp engine can fit about 0.6 liter of fluid, in the more powerful units. a little more than 1 liter. It is not for nothing that the 0.6-liter capacity is the most popular-package by manufacturers. This exact oil amount is enough to fill medium-powered motor vehicles to the full level. It is most popular among gardeners and country-house owners.