The cylinder block is the largest and most massive part of the internal combustion engine. It is made of aluminum, cast iron or their alloys. The main requirements for the cylinder block are good thermal conductivity, strength and durability.

Engine Cylinder Block, Purpose of Cylinder Block

The cylinder block serves as container for the details of the cylindropore group.

Inside the block there is a crank engineering mechanism (CSM), consisting of: pistons, piston fingers, connecting rods and connecting rods, piston rings (compression and oiling), crankshaft, fasteners.

The crank-connecting mechanism is the main mechanism of the internal combustion engine, which ensures the conversion of the combustion energy of the fuel through the reciprocating movement of the piston in the rotational motion of the crankshaft.

According to the constructive location of cylinders, the Cylinder blocks are:

• row
• V - figurative
• opposite

There are blocks of cylinders and other constructive species, but most often these three types are used on cars.

Cylinder Cylinder Cooling System

In addition to the crank-connecting mechanism, the cylinder block includes a cooling "shirt".

It serves to circulate the coolant, that is, the heat of thermal energy from the engine.

This ensures that the optimal work temperature is maintained. The cooling shirt is cut inside the cylinder block with a special tool.

In order to avoid clogging and blocking, a cooling fluid should be changed after a certain time, according to the regulatory and technical documentation for the operation of the car.

It is made up by the manufacturer.

Device block cylinders

The cylinders themselves are cut in the block using a lathe.

They must be smooth and resistant to wear and high temperature. Smoothness is attached using the homing procedure, strength - with the help of heat heat treatment.

On the engines of the old sample, the cylinders "guilized" - a sleeve was inserted inside the cylinder drilled hole, inside which the piston made reciprocating movements.

On modern cars, the cylinders "sleeve" only in critical cases of the overhaul of DVS.

Problems with the block are mainly associated with the action of the walls of the cylinders during the operation of the engine.

To avoid increased wear of the walls of the cylinder, as well as the details of the cylindrophone group, it is necessary to regularly change lubricants and filter materials.

When determining the wear of the cylinder, the term "cylinder development" is used.

It is measured by a special instrument - a nutrometer that can be ...

If the generation exceeds the maximum allowable value, the cylinder block is sent to the boring until the next piston repair.

If the cylinders are worn so much that the boring does not help, they are driving them.

However, it is rarely resorted to this method, and the unit is completely replaced with a new one.

After the boring of the block, be sure to check with Tokary, under what size of the pistons are crushed cylinders (if you did not say about it) to acquire pistons of the desired repair size.

Otherwise, the block will not last for a long time, and after a couple of thousand kilometers, you will return it to turning on turning.

Remember that when repairing a block, an error of 0.1 mm may turn out to be fatal. Therefore, in advance, be patient and the necessary tool. It is especially important to have a micrometer at hand.