If the engine began to "eat" oil, then this does not mean that it is time to carry out major repairs. It is possible that the replacement of the valve seals of the VAZ-2110 is required. 8 valves in the gas distribution system, they are equipped with special oil deflectors. They do not allow lubricant to enter the combustion chambers along the valve legs. And with the destruction of the oil seals, oil begins to leak into the cylinders.
What are oil seals?
The elements are made of rubber and are necessary in order to remove oil from the valve legs. Moreover, the rubber has high strength, is able to withstand high temperatures. When oil enters the cylinders, it begins to burn, black smoke comes from the exhaust pipe (a clear symptom that the engine requires major repairs). In some cases , valve guides can cause these symptoms.
On the legs of the valves, the inner surfaces of the combustion chambers, the exhaust manifold, carbon deposits appear. This significantly reduces engine power, as less air-fuel mixture enters the cylinders. Significantly reduced engine life, increased gas mileage. Therefore, if you notice the first symptoms of destruction of the seals, change them urgently - the consequences can be disastrous. In car services, the prices for the replacement of oil scraper are high, what can we say about the overhaul of the engine or cylinder head.
Characteristic signs of damage
Before proceeding with the repair, you need to make sure that there is really a breakdown. The replacement of the valve seals of the VAZ-2110 (8 valves) is required in cases where the following symptoms occur:
- Increased oil consumption.
- Smoke while starting a car cold engine.
- The lower edge of the thread of the spark plugs is oily.
- When opening the cylinder head, you can see oily black streaks on the camshaft.
All these signs give out a malfunction of valve stem seals (seals). The edge on which the spring is located does not fulfill its functions - the oil is not removed from the valves. In the event that the oil seal is completely out of order, the oil consumption will increase significantly. The amount of soot will also become larger.
What oil seals are better to buy?
In order to replace the oil seals of the VAZ-2110 valves (8 valves), you will need to buy spare parts. On the shelves of shops you can find details of the production of many companies. But the seals of such manufacturers will be of the highest quality:
- "Elring". Made in Germany, they are multi-branded elements (can be installed on the engines of any cars, including domestic "tens").
- "Reserve" - are made in Samara, perfectly show themselves at operation on domestic cars.
- "Goetz" - are made in Germany, but there are a lot of fakes on the Russian market.
- Victor Rains is also a German manufacturer, the elements have good performance.
Please note that the installation of low-quality or fake elements will entail their early failure. The Goetz company produces valve seals; they are only red. And if you met on the counter elements of this manufacturer, but green, then this is a clear fake.
Preparatory work
Before replacing the oil seals of the VAZ-2110 valves (8 valves), you need to perform a few simple manipulations to prepare the car for repair:
- Disconnect the negative terminal from the battery.
- Remove the air filter housing.
- Remove the cover that covers the timing drive mechanism.
- Disconnect the air suction cable (on carburetor models).
- Unscrew the two nuts that secure the cover that covers the camshaft.
- Mark the camshaft and crankshaft pulleys.
- Fix a camshaft pulley, having established in a cut a piece of a tube. It is necessary that she put on a hairpin in the cylinder head.
- Loosen the bolt that secures the camshaft pulley using a 17 wrench.
That's all, now the whole valve mechanism in front of the eyes. If the work is carried out on a carburetor engine, you will need to remove the pump (fuel) and the ignition distributor. Similarly, work is carried out to replace the directional valves.
Oil seal replacement
Be sure to remove the camshaft pulley and unscrew the pastels on which it is located. Be sure to unscrew the bolts from the center to the edges. Remove and stack the rockers and pastels (be sure to remember their location). Further manipulations:
- Dismantle the springs of the rockers.
- Unscrew the candles.
- Swell the valves on the first and fourth cylinders. It is advisable to use a puller for this work.
- Remove the old oil deflectors using two screwdrivers or a puller. Try not to destroy the ceramic-metal parts of the guide bushings.
- New oil seals should be moistened with oil.
- On the upper part of the valve (where there are slots for crackers), install a special polyethylene sleeve.
- Establish a new epiploon and remove the plug. The gland can be pressed in using a 10 mm pipe wrench.
After completing all manipulations with replacing the stuffing box, install the springs, plates and crackers on the valve. In car services, prices for such services are quite high - about 1,500 rubles. And this is if the VAZ-2110 valve oil seals are replaced (8 valves). For 16-valve engines, this service is more expensive.
Completion of work
After all the new oil deflectors have been installed, you can proceed with the assembly. It is realistic to replace the valve seals without removing the heads. Indeed, the dismantling of the cylinder head is a laborious process that will require replacement of the gasket and drain of antifreeze. Motor assembly:
- Install the cover, use only a new gasket.
- Install the camshaft pulley and tighten the bolt.
- Install the camshaft and crankshaft pulleys , put the timing belt and tension it.
- Install all attachments.
After the repair, be sure to check that the engine has returned to normal and there are no more symptoms of damage. If it is necessary to repair the VAZ-2110 valves, then a simple replacement of the oil deflectors is indispensable. Have to dismantle the cylinder head and change, grind all the valves.