Replacing the oil seals of the gearbox VAZ 2107
Content
The gearbox is rightfully considered one of the most complex components in the design of any car. At the same time, the operation of flanges, shafts, gears and bearings largely depends on the performance of such a small element as an oil seal.
Gearbox oil seal VAZ 2107 - description and purpose
An oil seal is a special seal in a vehicle that is needed to seal gaps and crevices. For example, in a gearbox, the oil seal plays an important role - it is fixed at the junction between moving and stationary mechanisms, preventing oil from flowing out of the gearbox.
The oil seals in the VAZ 2107 box are not made of rubber, as most drivers believe. In fact, this product is constantly in gear oil, and in order to minimize production, manufacturers make oil seals from composite materials of CSP and NBR. At the same time, the gasket feels equally "good" at any temperature - from -45 to +130 degrees Celsius.
Dimensions of box glands
By itself, the gearbox on the "seven" is designed for many years of service. However, the resource of the device directly depends on how often (and in a timely manner) the driver will change the seals. Indeed, during the operation of the machine, it is the seals and sealing joints that are the first to fail (they are torn, worn out, squeezed out). Therefore, timely replacement of the oil seal will help prevent costly repairs to other gearbox mechanisms.
For correct replacement, you need to know the dimensions of the VAZ 2107 gearbox oil seals:
- Primary shaft oil seals have a weight of 0.020 kg and dimensions of 28.0x47.0x8.0 mm.
- The secondary shaft oil seals weigh a little more - 0.028 kg and have the following dimensions - 55x55x10 mm.
Which is better
The main question of any driver of a VAZ 2107 when repairing a box sounds like this: which oil seal is better to put on the shafts in order to avoid rapid wear? In fact, there is no one-size-fits-all option.
The standard equipment of the shafts implies the use of Vologda oil seals, however, if necessary, you can install any others, even imported ones.
Industry leaders include:
- JSC "BalakovoResinoTechnika" (main production material - composites and alloys);
- the company "Trialli" (the main production material - thermoplastic elastomers);
- BRT company (made from rubber compounds with various additives).
The most affordable oil seal on the box shaft costs 90 rubles, the more modern the manufacturing technology, the more expensive the product will be.
Photo gallery: a selection of the best oil seals for the VAZ 2107 box
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- Affordable and high-quality oil seals for gearboxes
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- The most modern oil seals that are currently used to equip premium foreign cars
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- Oil seals "BRT" are distinguished by low prices and wide distribution in all regions of the country
Signs of destruction of oil seals
The seals are located directly on the shafts inside the box, so their wear can be visually determined only when the gearbox is disassembled. However, any driver will be able to quickly identify the destruction of the oil seals by eye, because there are obvious symptoms:
- Transmission oil leaks under the machine.
- Constant low oil level in the box.
- Problems with shifting gears while driving.
- Crunching and grinding in the box at the moments of gear shifting.
Lots of options. If oil is leaking at the junction of the clutch bell and the engine, then it can be either the rear crankshaft oil seal or the gearbox input shaft oil seal. If there is a leak at the junction of the clutch bell and the box body - the gasket of the caputs. If it is wet at the rear end of the box - the gasket or the output shaft seal
It would seem how the performance of such a complex unit as a gearbox can depend on a small detail. However, the loss of tightness for the box is fraught with big problems, because even minor losses of transmission oil will immediately affect the lubrication of moving parts.
It is recommended to change the seals in the VAZ 2107 box every 60 - 80 thousand kilometers. The replacement is associated with an oil change, so it will be convenient for the driver to carry out these works at the same time. Before this period, it is necessary to change the gland only when there are clear signs of its destruction.
Input shaft oil seal
The input shaft seal is located directly on the input shaft portion and contacts the clutch housing. Therefore, to replace this product, you will need to dismantle the casing.
For work you will need to prepare:
- nut heads;
- hammer;
- puller;
- flat screwdriver;
- knife (it is most convenient for them to remove the old gasket);
- new oil seal;
- transmission oil;
- new input shaft oil seal.
The procedure for replacing the seal can be carried out both on the removed box and directly on the car. However, it is easier and faster to change the product at a dismantled gearbox:
- Disconnect the shift fork from the box.
- Remove the release bearing by gripping it with a puller.
- Remove the six clutch cover retaining nuts.
- Remove the cover from the box.
- Pick up the old oil seal on the input shaft with the tip of a knife or screwdriver, remove it.
- It is good to clean the landing site so that there are no traces of the oil seal, dusting or oil smudges on it.
- Install a new oil seal after lubricating it with gear oil.
- Next, assemble the box in reverse order.
Video: replacement instructions
Output shaft oil seal
This gasket is located on the output shaft and disconnects it from the gearbox flange. In this regard, the replacement of the output shaft oil seal proceeds according to a different scheme and is very different from the operation on the input shaft.
Replacement will require:
- spanners;
- screwdriver with a flat thin blade;
- puller;
- passages;
- transmission oil.
The work is progressing according to the following algorithm on the removed checkpoint:
- Firmly fix the box flange so that it does not budge.
- Use a wrench to turn the nut of its fastening.
- Using a screwdriver, carefully pry off the metal ring and pull it out of the output shaft.
- Press the puller against the end of the shaft.
- Press out the flange together with the retaining washer.
- Use pliers to grip the old oil seal.
- Clean the seating area, install a new oil seal.
- Then assemble the structure in the reverse order.
Video: operating instructions
Thus, the replacement of oil seals at the VAZ 2107 checkpoint does not present any serious difficulties. However, inexperienced drivers are advised to seek professional help in order to avoid problems with the machine, since working with the box requires knowledge and experience.
