Required for removing excess grease from the valvesoil-removable caps VAZ-2107. Replacement of these components is required if they have lost their qualities. Ideally, the caps should be soft and fit the surface of the valve stem. If the integrity of the stuffing box is broken, there is a burning on candles, the oil consumption rises, smoke appears from the exhaust pipe. The same symptoms also occur in a faulty engine. But if you yourself change the caps, you can completely get rid of these symptoms.
What kind of tool is needed?
When replacing oil-removal caps VAZ-2107must be kept clean, so all work is preferably carried out in the garage. Try not to allow dust to enter the body of the head of the unit - this will lead to the fact that rubbing elements will begin to wear out more. List of required tools for repair:
- The arsenic of valves of any design, it is possible even self-made. The main thing is that it was convenient to work.
- Dynamometer wrench.
- Set of face heads, spanners and carabiners.
- Screwdrivers.
- Wire.
You may also need tools that are not listed in this list. It is desirable to have at hand always such trifles as a wire, a magnet, etc.
Preparation for repair
Be sure to thoroughly wash the car,special attention should be given to the engine compartment. But you should be careful - do not wet the components of the ignition system, the wiring harness, sensors. Before starting cleaning, be sure to disconnect the battery, or better completely remove it from the car.
Be sure to install under the rear wheelscar wheel chocks, turn on the first speed and squeeze the handbrake. And most importantly - you need to buy new oil suction caps on the VAZ-2107. Which is better - it's up to you, but try to give preference to those manufacturers whose products are recommended by the AvtoVAZ plant.
Removing the caps
The first thing to do is to completely disassemble the timing mechanism. To remove the timing mechanism, you must:
- Unscrew the spark plugs with a special wrench. Be sure to check their condition, replace if necessary.
- Unscrew bolts with which the cover of the mechanism газораспределения is fastened, and remove it.
- Establish a camshaft strictly on labels.
- Unbend the petals on the lock washer, which prevents the bolt from loosening, which secures the camshaft sprocket.
- After this you can completely unscrew the bolt. Do not forget to include the first gear so that the camshaft does not turn.
- After this, it is necessary to unscrew the nut with which the tensioner is attached.
- Remove the sprocket and timing chain tensioner. It is desirable to lock the position of the drive chain on the sprocket with a wire.
- After this, it is possible to unscrew the nuts with which the bearing housing of the camshaft is fixed.
- Remove the housing along with the shaft.
After all this work has been completed, it is necessary to dismantle the rocker arms and you can proceed to dismantle the old caps.
Removing the caps
Чтобы не допустить проворачивание коленчатого shaft, it is necessary to install a tin rod in the holes for the spark plug of the first cylinder. After that, install the rassukharivatel so that his bracket rested against the valve plate. Click on the plate so that the spring is compressed. Pull out the crackers located on the groove.
After that it is necessary to dismantle the plate,spring thrust washer. Be sure to remove the rassuharivatel. The oil scraper cap is hooked by a flat screwdriver and removed. If valves are being replaced, it will be necessary to completely remove the cylinder head. But it is not necessary to remove the cylinder head if only the replacement of the VAZ-2107 oil scraper caps is made. Dimensions only check them with those that have been installed previously. New items should fit tightly in the seats.
Installing new caps
To prevent damage to the edgethe oil wiper cap VAZ-2107 (photo shows the installation of the element), you must wear a soft sleeve on the valve stem. It is desirable to lubricate the cap from the inside with engine oil. As a sleeve, you can use shrink insulation, which must be slightly pressed on one side. The main thing is that its diameter is the same as that of the valve stem. It is desirable to install a new element on the rail after the old one has been completely removed. After that a spring, a plate is put on, the mechanism is compressed by a rassukharivatel. Crackers are installed in the groove. The procedure for mounting caps on the guide is as follows:
- On the valve stem is an auxiliary sleeve.
- Oil scraper cap is worn and installed as far as it will go.
- Removed auxiliary sleeve.
- With a special mandrel or a tubular key on the "10" is necessary to drive the cap into place.
- Install the thrust washer, plate and spring.
- Fix the rassuharivatel and squeeze it.
- Carefully install the crackers and release the puller.
Assembly and adjustment of the timing mechanism
After all the work on the replacement of the oil wiper caps on the VAZ-2107 is necessary to assemble a node. For this:
- Install the yoke.
- Mount the camshaft with the cover on the studs of the engine head.
- Try to tighten the nuts on the camshaft cover evenly, control the torque using a torque wrench.
- Install the chain tensioner, squeeze the spring in advance and fix it in this position with a nut.
- Remove the wire that secured the chain to the sprocket, install the camshaft. Try not to change the location of links.
- Install the washer and tighten the bolt that produced the camshaft sprocket. Bend the petals of the washer so that the bolt does not roll.
Now you need to unscrew the nut to tightenchain. Turn the crankshaft and tighten the tensioner nut. Check whether the chain is correctly installed, check the marks on the engine block, crankshaft and camshaft sprockets.
After all the work is desirableadjust the valve clearances, then install the cylinder head cover along with the new gasket. Old gaskets are not recommended, as they may leak oil. This completes the replacement oil scraper caps on the VAZ-2107. Which is better to install - it's up to you. The main thing that they had no damage and were made of quality materials.