Replacement of the crankshaft VAZ-2109: manual , methods. VAZ-2109: replacement of the crankshaft with your hands

The engine crankshaft on both sides established special seals-the seals. They are designed to contain the oil inside the engine, do not allow it to leak out during operation. Like any other mechanism, they eventually wear out and must be replaced.

Signs of wear of the crankshaft

Worn On the element cracks, it becomes hard. The detail begins to flow through motor oil, spraying it under the hood.

First you need to determine which of the glands is out of order:

• Worn front crankshaft seal, the grease will be visible on the front of the pan directly under the oil seal and the oil pump cover;
• If the rear is worn, the oil will be on the gear box.

Causes of wear of the element

It occurs for the following reasons:

• Normal wear and tear during long-term operation;
• Improper installation of the oil seal;
• Excess pressure in the crankcase of the engine;
• The backlash of the crankshaft.

Previously, an incorrectly installed gasket will last long and will soon fail. This will result in blockage of the crankcase ventilation system or open the breather hoses. This causes excessive oil pressure in the crankcase that his strength pushes and warps the seal. Because of this, it wears out faster and skip the grease. The same symptoms occur with increased play of crankshaft, which pushes the element. This is caused by wear on the crankshaft bearing half-rings. They are in their normal operation, eliminate end play of the crankshaft. When you wear half-rings shaft begins to walk from side to side, from which the loop falls into the crankcase. The crankshaft begins to Polish the crankshaft bearings and connecting rod caps.

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In case of late replacement of semirings item can not be installed on your seat. It will threaten the driver with a replacement block as a whole. It should be borne in mind all these reasons, always check the proper operation of the engine and the detection of the problem is necessary to resolve it. Otherwise, the new seal will last very little time and it will have to change again. To not allow the motor to oil starvation, it is time to replace the crankshaft seal (on the car VAZ 2109 in particular). Below we'll look at how to do it.

Replace crankshaft front oil seal with his own hands: methods

To proceed with the assistant. Work such as replacing the crankshaft seal on the car VAZ 2109, quite a lengthy process and depends on the oil seal change front and rear. If the first, it is not so complicated operation, can not be said about the rear element. To reach it, you need to remove the gearbox, clutch, remove the engine flywheel and then proceed to dismantle and install.

Replacement of the crankshaft 2109 (2 way):

• On the spot, without removing the oil pump Assembly;
• With the removal of the pump Assembly.

The First method is much faster. But sometimes you have to work in tight spaces. Although drivers and mechanics often use this method. You can work with both sides of the hood and in the pit.

Replacement of the crankshaft 2109: step-by-step instructions

First, the car set the Parking brake. Nut is loosened fixing the alternator to the tension bracket, and remove the drive belt of the generator. Next, you should call the assistant to fifth gear and held the brake pedal to eliminate the cranking. It will not Unscrew a bolt of fastening of a pulley of the accessory drive. For convenience, you can remove the right front wheel and a long ratchet to loosen the bolts of fastening of a pulley.

What next? Removing the element, you need to get to a toothed pulley camshaft. This plastic protective cover is disassembled, the car hung one wheel turns on the third or heel transfer. Turning the wheel clockwise exhibited two labels: on the crankshaft pulley and the crankshaft.

You can Then remove the timing belt. Using a flat screwdriver to hook and remove the toothed pulley of the crankshaft, and further, the dowel on the flange. Now with a screwdriver you can dig the old seal. We heave for the extreme circuit. This should be done with caution so as not to leave scratches on the crankshaft flange.

This strain will quickly wear out the new seals, even if properly installed. Some used cunning withdrawal method: screw it screw, clamp the pliers and pull it together with a sealant. Prior to installing a working (internal) surface of oil seal lubricated with engine oil. Next, install on the seat. Press new oil seal, use a machined mandrel or bar, gently tapping it with a hammer.

It is Important not to damage the housing element. The new seal should be pressed until it stops and clearly stand on his own seat without bias.

Secondmethod

Replacement of the crankshaft 2109 the second way involves removing the oil pump entirely. To change the seal in this case is very convenient, but you will have to spend more time. After completing all of the above, Unscrew the 3 bolts of the pallet of the engine, right under the pump cover. Then Unscrew the fasteners of the cover. The oil pump is carefully eliminated. Removing old and zapressovan new oil seal, its working surface is oiled, and all set in the reverse order of removal. The difficulty lies in installing the oil pump in place.

It has to be properly centred so that the item is correctly doing his job and not giving. As you can see, on the car VAZ 2109 replacement crankshaft seal, with his own hands done – it is understandable and not very difficult job. If I can detect axial overtravel of the shaft above the norm, then this indicates the wear rate of its half-rings. They should be replaced immediately to avoid any complications.

Changing the semiring

It is not necessary to remove the crankshaft 2109. Replacement seal, cups, liners (crankshaft sensor, we will note at once, you need to do) starts with finding the position of items. These items are located on either side of the Central (third) main bearing. From the center support crankshaft installed metal-ceramic semicircle yellow. On the other hand – ACSR. Elements should stand tight, and depending on the wear of their nests they come in three sizes:

• Standard;
• First repair;
• Second repair.

What next?

Pre-drain the oil from the car engine, Unscrew and remove the pallet. Then unscrewed the two bolts of fastening of a cover of the middle crankshaft bearing. It is removed and using feeler gauges, measure the clearance between the bearing and the semicircle. It is necessary to add to it standard parameter of 2.31 mm.

The result is the required size of the new washer. Thereafter, by displacing the old washer, installed in their nests. It is important that the new element came loose. After this work all the removed parts are installed back.

Summary

So we figured out how to replace the crankshaft seal (VAZ 2109 in particular). The driver needs to monitor the condition of sealing elements, check out the free axial stroke of the crankshaft to further exploitation was without negative consequences.