Independently change the oil in the gearbox VAZ 2107

Any mechanism needs constant lubrication, and the gearbox on a VAZ 2107 car is no exception. At first glance, there is nothing special in the oil change procedure, and even a novice driver can cope with this. But this impression is deceiving. Since when changing the oil, there are a number of nuances that you should pay attention to. Let's try to deal with them in order.

Reasons for replacing transmission oil in the VAZ 2107 gearbox

The gearbox is a unit with a mass of rubbing parts. The frictional force is especially intense on the gear teeth in the gearbox, which is why they get very hot. If the effect of the friction force is not reduced in time, then the teeth will begin to collapse, and the service life of the box will be very short.

The five-speed gearbox VAZ 2107 is replete with rubbing parts that need lubrication

A special gear oil is used to reduce the frictional force. But it also has its own service life, after which the oil loses its properties and ceases to perform its functions. The only way to solve this problem is to pour a new portion of grease into the box.

Transmission oil change intervals

If you look at the operating instructions for the VAZ 2107 car, it says that the transmission oil should be replaced every 60-70 thousand kilometers. The problem is that these figures are valid only when the operating conditions of the car are close to ideal, which is not the case in practice. Why? Here are the reasons:

• poor quality gear oil. The reality is that the modern car enthusiast often has no idea what exactly he is pouring into the gearbox. It's no secret that counterfeit transmission oil is all over the place. Products of famous brands are especially often counterfeited, and the quality of counterfeits is often such that only a specialist can recognize them;
• low quality of roads in the country. When driving on poor roads, the load on the gearbox increases significantly. As a result, the lubricant life is developed faster. In addition, the driving style of the driver has a significant impact on the development of the oil resource. For some motorists, it is softer, while for others it is more aggressive.

Taking into account the above, it is recommended to change the transmission oil after 40-50 thousand kilometers, and it is advisable to buy grease only in specialized stores that are official dealers of the selected lubricant brand. Only in this way will the likelihood of buying counterfeit transmission oil be minimized.

About the types of transmission oils

Today, two types of gear oils can be found on the fuel and lubricants market: GL-5 oil and GL-4 oil. Here are their differences:

• GL-4 standard. These are transmission oils used in gearboxes and drive axles with hypoid and bevel gears operating at moderate temperatures and loads;
• GL-5 standard. It includes gear oils used in high-speed axles and gearboxes operating in high temperatures and alternating shock loads.

From the above, it is clear that the GL-5 standard provides better EP protection for the gears in the transmission. But this is a common misconception that many car owners are subject to, including the owners of the VAZ 2107.

Let's dwell on this point in more detail.

GL-5 standard gear oils use special complexes of sulfur-phosphorus additives that create an additional protective layer on the rubbing steel parts of the box. But if such an additive comes into contact with parts containing copper or other soft metal, then the protective layer formed by the additive is stronger than the copper surface. As a result, the wear of the soft metal surface is accelerated by several times.

Research shows that the use of GL-5 grease in boxes requiring GL-4 grease is not only impractical, but also dangerous.. For example, the synchronizers in the VAZ 2107 boxes are made of brass. And with prolonged use of GL-5 oil, they will fail first. It is for this reason that the owner of the VAZ 2107 should only pour GL-4 oil into the gearbox.

The second most important point that the owner of the VAZ 2107 should remember is the viscosity class of the oil being poured. Today there are two such classes:

• class SAE75W90. It includes semi-synthetic and synthetic gear oils, which motorists call all-season. This grease works in a wide temperature range - from -40 to + 35 ° С. It is this class of oils that is ideal for use in our country;
• class SAE75W85. The upper temperature limit for oils of this class is higher. But it should not exceed 45 ° C, since at this temperature the oil begins to boil.

Brand and volume of oil for the VAZ 2107 gearbox

There are several brands of GL-4 gear oil, which are especially popular with the owners of the VAZ 2107. Let's list them:

• transmission oil Lukoil TM-4;
  

  Lukoil TM-4 is the most popular oil among VAZ 2107 owners
• oil Shell Spirax;
  

  The quality of Shell Spirax oil is higher than that of TM-4. Like the price
• Mobil SHC 1 oil.
  

  Mobil SHC 1 - the most expensive and highest quality oil for the VAZ 2107

The amount of oil to be poured directly depends on the number of gears in the car's gearbox. If the VAZ 2107 is equipped with a four-speed gearbox, then 1.4 liters of oil are required for it, and 1.7 liters are required for a five-speed gearbox.

Checking the oil level in the gearbox

There are a number of simple steps to follow to check the gearbox oil level.

1. The car is installed on the inspection pit.
2. The oil drain and fill holes on the gearbox are cleaned with a metal brush.
3. Using a 17 wrench, the plug is unscrewed from the oil filling hole.
   

   The plug from the filling hole is unscrewed with a 17 wrench
4. The oil level should normally be 4 mm below the edge of the topping-up hole. The measurement is made using a probe or a regular screwdriver. If the oil has gone below 4 mm from the edge of the hole, then it must be added to the box using a syringe.
   

   The oil level in the VAZ 2107 gearbox can be checked with a conventional screwdriver

The process of changing the oil in the gearbox VAZ 2107

Before changing the oil in the VAZ 2107 gearbox, let's decide on the necessary tools and consumables. Here they are:

• open-end wrench for 17;
• hexagon 17;
• 2 liters of GL-4 grade gear oil;
• oil syringe (sold in any auto shop, costs about 600 rubles);
• rags;
• capacity for draining mining.

Sequence of work

Before starting work, the car will have to be driven either onto the overpass or into the inspection pit. Without this, the transmission oil cannot be drained.

1. The drain plug on the crankcase is carefully wiped off dirt and dust with a rag. The filler hole located on the right side of the crankcase is also wiped.
   

   Before starting work, the gearbox drain hole must be thoroughly cleaned of dirt.
2. A container is substituted under the crankcase for draining mining (it is better if it is a small basin). After that, the drain plug is unscrewed with a hexagon.
   

   To unscrew the drain plug from the gearbox, you will need a 17 hexagon
3. The transmission oil is drained. Despite the small volume, the grease can drain for a long time (sometimes it takes 15 minutes, especially if the drain occurs during the cold season).
4. After completely draining the oil, the plug is carefully wiped off with a cloth and wrapped in place.
5. Open-end wrench 17 turns off the filler plug on the crankcase. It also needs to be cleaned of dirt with a rag (and special attention should be paid to the thread. It is very small on this cork, and when dirt gets in, the cork is extremely difficult to wrap, so that the thread can be easily torn off).
   

   There is a very fine thread on the filler plug, which requires great care when unscrewing
6. New oil is poured into the open hole using an oil syringe. When the required oil level in the box is reached, the filler plug is screwed back.
   

   New oil is poured into the gearbox using a special oil syringe

Video: change the oil in the VAZ 2107 checkpoint

Changing the oil in the gearbox VAZ - gearbox

There are a couple of important nuances without mentioning which this article would be incomplete. First of all, oil temperature. If the engine is cold, then the oil in the box will be viscous, and it will take longer to drain it, and it is far from a fact that the oil will drain completely. On the other hand, if the engine is hot, then unscrewing the drain plug can seriously burn you: in some cases, the oil can heat up to 80 degrees. Therefore, the best option before draining is to let the engine run for 10-15 minutes. But no more.

And you should not rush with pouring new oil into the box. Instead, you should carefully look at working out in the pelvis. If metal filings or shavings are clearly visible in the old oil, the situation is bad: the gearbox needs urgent repair. And with the filling of oil will have to wait. It should also be said here that chips in old oil are far from always visible: they usually lie at the bottom, and you can only see them in a shallow basin. If the oil is drained into a bucket, then you will not be able to see alarming signs. But there is a way out: you need to use a regular magnet on a thread. It is enough to dip it into the oil, move it a little along the bottom of the container, and everything will become clear.

And finally, safety precautions. This is something that many novice car enthusiasts forget about. It should be remembered: even a small drop of hot oil that gets into the eye can lead to very serious consequences. Up to the loss of an eye. Therefore, be sure to wear safety glasses and gloves before unscrewing the drain plug.

So, pouring oil into the VAZ 2107 is within the power of every motorist. No special skills are required for this. All you need is the ability to hold a wrench, an oil syringe and remember some of the intricacies outlined in this article.