Oil for gearboxes of Parsun outboard motors. How much oil is in the gearbox and engine of Mercury outboard motors

For the smooth operation of the outboard motor, reviews from shipowners are advised to purchase high-quality transmission oil. To that lubricant strict requirements are put forward, since it ensures a long service life of rubbing parts and the engine as a whole.

Why buy gear oil?

Not a single owner of motorcycles can do without buying gear oil. It is necessary to buy transmission oil so that all the gears of the engine do not wear out during friction and the life of the motor has increased significantly.

Our store offers gear oil, equipped with an additional set of additives for the best performance on the water. It protects parts from friction and protects them from corrosion and oxidation.

Transmission oil envelops the moving parts of the mechanisms with a film that prevents the occurrence of friction and the appearance of chips on the parts. The oil must withstand high temperatures, since during engine operation it heats up to 300 degrees, and also retain properties during engine operation in winter. Gear oil price depends on the manufacturer, the amount of additives, as well as the viscosity and quality of the product.

You can buy gear oil from us:

• Mineral;
• Synthetic;
• Semi-synthetic.

The characteristics and price of the oil depend on what basis the oil has. Synthetic-based gear oil is enriched with the largest number of additives that allow the lubricant to do its job even if water gets into it.

Synthetics are not cheap, but at the same time it is considered the highest quality transmission oil, therefore it is most popular with water motorists.

Have you bought gear oil for your outboard motor? Leave your feedback for other buyers of our store.

Boat, like any type of motor, wears out over time. This is due to the fact that its design provides for a number of moving elements. One of the main components of this kind is the gearbox. In order to increase its service life, a special transmission fluid is used.

Such lubricants have a certain shelf life, after which an oil change in the outboard motor gearbox will be required. This procedure is relatively simple, so the owner of the engine can perform it. However, when replacing, it is necessary to take into account a number of nuances, among which an important place is occupied by the question of which oil is suitable for the outboard motor gearbox.

Reducer and a number of other elements, including a screw, power unit during the operation of the latter are under water. This fluid, in turn, plays a major role in the functioning of the cooling system. That is, when the boat moves through the body of water, the water circulating through this system prevents the motor from overheating.

Despite the fact that the engine and its individual components are protected from the negative effects of the liquid by various seals and gaskets, over time, individual drops penetrate into the power unit. As a result, this leads to the formation of corrosion on parts, the salt contained in sea water creates a negative environment for the operation of components that are regularly subjected to friction.

All of the above indicates that it is necessary to pour special oils into the gearbox. In the composition of such lubricants there are additives that level the negative effects of water. They bind and prevent contact of parts with it. Such additives are better known as anti-emulsion additives.

It is important to understand that lubricants do not protect the motor when a large amount of water enters it. In addition, it is impossible to fill in oil in a gearbox designed for automobile engines.

This is due to the fact that these types of lubricants do not contain anti-emulsion and anti-corrosion additives. In other words, using a similar material for outboard motors, the desired effect is not achieved, and the components of the power unit will quickly fail. Therefore, it is not recommended to use them, even though they are cheaper.

The oil in the outboard motor gearbox should be replaced with a lubricant with a viscosity grade:

• 80w90;
• 85w90.

For materials intended for the types of engines in question, the API standard applies. According to his requirements, lubricants must comply with the following classes:

1. GL-4. This type of lubricant is intended for bevel and hypoid gears operating under variable load conditions. Often, up to half of the additives used in second-class oil are found in the composition of such a product.
2. GL-5. Designed for use in harsh environments with high loads.

This class includes products consisting of a large number of various additives. GL-5 compliant lubricant:

• has the best anti-seize characteristics;
• provides high level protection of engine components from mechanical damage caused by impacts, high loads and pressure.

GL-5 grade oils can replace GL-4 materials.

Choice according to engine type

The oil change in the outboard motor is carried out in accordance with the requirements that the manufacturer of power units imposes on their product. Therefore, the choice of lubricant is determined by the type of engine used on the craft.

Yamaha

For motors of this brand, the use of Yamalube Gear Oil SAE 90 GL-4 is recommended. This product has been extensively tested on Yamaha engines and approved by the manufacturer. Oil includes a certain set of additives, which:

• protects against wear of the part under high loads;
• prevents corrosion and rust;
• prevents oxidative processes;
• eliminates the appearance of deposits and foaming.

This lubricant extends the life of power units.

Tohatsu

Tohatsu allows the use of lubricants various brands. The main thing is that these products comply with the GL-5 class and have a viscosity of 80w90.

Mercury

It is important to note that Quicksilver brand products are complemented by different sets of additives. Therefore, they cannot be mixed with each other.

The volume of oil to be filled directly depends on the power of the engine used and design features reducer. That is, the higher the first indicator, the more lubricant is required.

In this case, it is necessary to pay attention to the recommendations of the manufacturers given in relation to a particular power unit, since even for engines of the same brand and similar power, the needs can vary significantly.

Replacement process

The oil in the outboard motor gearbox is usually changed every season. This ensures long-term preservation of the original characteristics of the engine and reduces the likelihood of failure of individual components. It should be noted that these indicators also depend on how the conservation procedure was performed.

Checking the oil level is carried out as follows:

• The motor is installed in a vertical position.
• On the left side of the gearbox there is an upper hole closed with a cork. Having unscrewed the cork, a stick or any object that can replace the probe is inserted into the hole.
• When the stick is dry, this indicates the need for replacement.

Lubricant change is carried out as follows:

1. The unit is suspended in a vertical position. Drain plugs (upper and lower) are unscrewed on the gearbox, not forgetting to first place a container into which the waste material will drain.
2. While the oil is flowing, you need to pay attention to its color. At first, the shade of the lubricant will be dark. Special attention should be given to the color of the waste material at the first replacement. If inclusions of large particles (chips) are observed in it, then there is probably a problem associated with poor-quality assembly of the gearbox. In particular, this may indicate its insufficient tightness.
3. As the used lubricant is drained, the jet can become thinner sharply. In such circumstances in drain hole an oil plug has formed. About 60% of the material itself remains in the gearbox, so you should not immediately fill in new oil.
4. At the end of the drain, it is necessary to replace the gaskets on the plugs. It is highly not recommended to flush the gearbox with gasoline. Fuel destroys the seals, as a result of which the tightness is broken.
5. The bottom hole is twisted and new grease is poured. Some of these products are sold with special tubes that tightly fill the hole in the gearbox.
6. Filling is complete when new grease begins to flow out of the top hole.
7. If a lot of oil is needed, then a special pump is inserted into the lower hole, through which the lubricant is pumped out of the container. At the end of the replacement, it is recommended to check the fluid level in the gearbox again.
8. Tighten the bolts with little force, otherwise the subsequent procedure will require a jack screwdriver to open the drain holes.
   If you follow the recommendations described above, then the boat motor will last for many years without requiring repairs and without failing.

Video: changing the oil in the outboard motor gearbox

Boats have certain features. In accordance with them, manufacturers develop lubricants. The oil in the engine must be changed periodically. The duration of the device depends on the correctness of its choice.

There are many types of specialty lubricants on the market. Expert advice will help you figure out how to choose the right one. The main selection criteria should be known to every owner of such equipment.

Features of the outboard motor

Outboard motors "Yamaha", "Mercury", "Tohatsu" and other manufacturers are distinguished by certain design features. A user who is faced with the need to service such equipment for the first time should carefully study all the nuances of this process.

First of all, it should be noted that it is prohibited to pour automobile oil into such equipment. The fact is that a small amount of water can get into the gearbox. While the motor is new, this does not happen. However, when rubber seals and seals are worn, this situation is not excluded. Car oil, when mixed with water, will turn into an emulsion. In this case, the elements of the mechanism are quickly destroyed. The engine will need to be replaced soon.

Special boat oils for transmission contain a certain set of additives. They prevent the formation of an emulsion, prevent the occurrence of corrosion. Therefore, only special lubricants should be used for the boat engine.

Why change the oil?

In the course of their work, the moving parts of the engine can be destroyed due to friction. To prevent this from happening, special lubricants are used. can reduce the heat and friction of moving parts, extending the life of the engine.

The composition of such funds includes a certain set of additives. They enhance the action of the lubricant, preventing corrosion, washing away contaminants and keeping them in suspension. Over time, additives lose their protective ability. Pollution, deposits begin to accumulate. If the lubricant is not replaced in time, they will settle on the surfaces of the parts. The motor will be difficult to work. Particles of dirt will destroy the elements of the mechanism. Also, if water gets inside the transmission, rust will form. To prevent this from happening, you should change the oil on time.

Specifications

Considering, it is necessary to consider such important indicator like viscosity. It is customary to classify it in accordance with the SAE standard. Most engines require an 80W-90 grade lubricant for the gearbox. For stationary varieties of motors, it is necessary to purchase oil with a viscosity index of 85W-90.

This standard is not the only criterion when choosing lubricants for a motor. Many manufacturers label their products according to the API system. It distinguishes two viscosity classes for motor boat engines. GL-4 class oil is used to service hypoid, cone gears. They have a slight axle offset when moving. Such motors can work in different severity conditions. They usually alternate. After a heavy load, the motor requires a reduction in speed.

class GL-5 is used for loaded hypoid gears. They have a significant displacement of the axes during movement. To ensure the normal operation of the engine even under difficult conditions, such materials contain more additives than the previous class.

Original or analogue?

Choosing what kind of oil to fill in the gearbox of the outboard motor, users may encounter a large number of different lubricant products. Its cost differs depending on the manufacturer. To do right choice First of all, you need to read the equipment manufacturer's instructions.

The manual must indicate which oils are allowed to be used for a particular motor. During the production of such equipment, tests are carried out. Not all lubricant manufacturers provide suitable specifications for their products.

When running in a new engine, it is necessary to without fail apply special oil, which allows the use of the engine manufacturer. This tool is more expensive than analogues, but it specifications will allow you to maintain the integrity of all parts of the motor, even with significant overloads. Analogues can be used after a certain period of operation of the engine. However, their technical characteristics must fully comply with the manufacturer's requirements.

Engine "Yamaha", "Tohatsu"

Yamaha motors have hypoid gears. The manufacturer of the presented equipment has developed a special line of products that are suitable for such engines. It's called Gear Oil. For all of its motors, the manufacturer recommends purchasing products with a viscosity grade of GL-4.

Similar lubricants have been tested in different conditions in the development of Yamaha engines. Their quality and compliance with high technical requirements manufacturer is confirmed by Yamaha Marine. The oil film that forms on moving parts effectively prevents rust and emulsion formation. It is resistant to high temperatures. The oil has good cleaning properties.

Tohatsu does not provide for the use of a specific brand of lubricants for its equipment. The manufacturer of the oil can be anyone. However, lubricant specifications must comply with the GL-5 class.

Engine "Mercury"

Choosing oil in the gearbox of the outboard motor "Mercury" it is important to read the manufacturer's recommendations. This company plans to use Quicksilver lubricants for its engines. It includes several varieties of gear oils.

One of the most popular varieties is the Premium series. It is used for motor gearboxes with a power of 75 hp. with. Moreover, this oil can be used for boat engines other manufacturers. This is a high quality, high tech product.

For outboard motors over 75 hp. with., as well as stationary engines of the MerCruiser class, the manufacturer created a High Performance lubricant. It is also noted that mixing oils of different series is prohibited. If a product of a certain class was originally used in the engine, it is not recommended to change it. The composition of such funds includes various additive packages that may conflict with each other.

Engine oil quantity

To determine, how much oil to fill in the gearbox of the outboard motor you need to refer to the manufacturer's instructions. It provides detailed information about the capacity of the engine. The motor reducer increases in proportion to its power. However, different manufacturers this figure may vary.

To determine how much oil will need to be purchased for equipment maintenance, it is necessary to consider the average capacity of the equipment presented.

If the motor has a power of up to 6 liters. with., you will need to pour about 200 ml of oil. With an increase in this indicator to 18 liters. with., you need to buy more than 370 ml of lubricant. Motor reducer up to 30 hp. with. will require about 450 ml of funds, and over 70 liters. with. - 900 ml. This characteristic must be found in the operating instructions for the engine.

Checking the oil level

It must be controlled in accordance with the manufacturer's recommendations. Depending on the frequency of operation of the boat, as well as the load on the equipment.

To check the amount of lubricant in the gearbox, a certain procedure must be followed. First, the engine must be placed vertically on the transom (if the boat is on the shore of a reservoir) or on a special stand. There is an inspection hole on the top left side of the gearbox.

Next, the cork is unscrewed. A feeler gauge must be inserted into the hole on the gearbox. Even an ordinary toothpick or a match will do for this. After removing the probe, its condition is evaluated. If it is dry, the oil must be topped up.

Preparing for an oil change

Considering how to change the oil in a boat motor, it is necessary to pay attention to the preparation for this process. All necessary materials tools should be at hand. Waste oil will need to be drained into a bowl or other container. The volume of this dish must be selected in accordance with the volume of the reducer.

It is also necessary to prepare new rubber gaskets for traffic jams. During operation, a special pump will be required if the engine has high power and capacity. It will allow you to pump oil inside. For small motors, grease is poured in through a nozzle. You should also prepare the required amount of new oil.

Oil change

After installing the motor on the stand, a basin is substituted under it. At the bottom of the engine there is a plug that needs to be unscrewed. The processing is draining. The top cap also comes off. The old grease will drain into the container for about 10 minutes. At this time, you need to change the seals. It is impossible to wash the gearbox with gasoline. It will damage the rubber gaskets and water will get inside.

The nozzle of a tube of grease (if the motor is small) or a pump nozzle is inserted into the lower hole. Gradually it is necessary to pour the oil inside. It should appear from the top control hole. While holding the tube or pump, tighten the top cap.

Next, quickly close the bottom hole. A small amount of grease will still leak out, but it's not scary. After that, the oil level is checked in the upper control hole. If it is insufficient, lubrication is added. The gearbox is wiped, and the mining is transferred to a special collection point for processing.

Considering what is boat motor gearbox oil you can select and replace it yourself.

The user forgets to ask about the candle type, or oil in the gearbox and crankcase. That is why the team of the online store of outboard motors site is ready to provide complete information about components and consumables for branded equipment of the Mercury brand.

Table 1. Mercury engine brands, oil type and nominal volume, spark plug brand.

Table 2. Gearbox lubrication volume in Mercury outboard motors.

Do-it-yourself replacement of the impeller for the cooling pump of the Mercury outboard motor.

There often comes a time when the water pump impeller needs to be replaced. outboard motor Mercury. For a more detailed and illustrative example, we suggest you watch the video of the entire cycle of the replacement operation

How reliable and long your outboard motor works depends on you. Constant and is a mandatory measure if you want the motor to work properly and for a long time and not let you down at the most inopportune moment, in the middle of a reservoir with a wind increasing every minute.

We’ve already talked about, now it’s the turn of changing the oil in the motor gearbox.

The sequence of actions for changing the oil is approximately as follows. We start by hanging the motor in a vertical position. Then unscrew with a key drain plug below the gearbox. Do not forget to substitute the pan under the flowing oil.

Let the oil flow out. Do not be alarmed if the oil that comes out is dark in color in the first seconds. This means that the oil is doing its job and washes away the waste. If the gearbox oil is changed after, then it may look like glitter nail polish. "Sequins" should also not scare you, unless of course their size is small and does not exceed those in real varnish. If the sparkles/chips are large, then the gearbox is under increased stress, which may indicate an assembly defect. We met several times who did not have spacers on the screw shaft to the gears. If the oil from the gearbox comes out with an emulsion (the color of coffee with milk), then this means that the tightness of the gearbox is broken and water enters it through the screw shaft.

Wait until the oil is completely drained. But in the gearbox about 60% oil left. This is the so-called oil plug. It is well removed with car pump or even a simple cone from sealants. Tightly screw one or the other into the upper hole of the gearbox and apply pressure with force. The oil will come out right away. Prepare for this by placing a container of some kind in the way the oil exits. We perform the operation of applying pressure several times until the oil completely stops coming out. There are tips on the network for flushing the gearbox with gasoline, but if your used oil was normal, then this is not necessary.

We take a special gear oil (good oils Motul or QuickSilver) for outboard motors and insert the tube spout into the upper hole in the gearbox. We press on the tube and pump in oil until it appears in the upper hole. We do not pull out the spout of the tube and twist the cork of the upper hole. We hope you did not forget to change the cork gasket to a new one. Then we pull out the spout and quickly twist the bottom plug again with a new gasket. Of course, part of the oil will leak out, but due to the fact that the oil is filled through the lower hole, the discharge inside the gearbox will not allow the oil to flow out quickly. We tighten both plugs with medium or even small force. For better loosening of plugs in the future, their threads can be lubricated with graphite grease.

The gearbox oil has been changed. Wipe off traces of oil. The motor is ready to go.