The older the engine becomes, the more often it needs to be repaired. Sometimes normal repairs are not enough, and the time comes for complex and laborious procedures-the major overhaul of the engine. The engine is the maximum possible upgrade of the engine, the restoration of its basic characteristics and its performance to its initial level. In contrast to the bulkhead of the engine, the capital repair is repaired and reconstructed in perfect (or close to it) state not only the nodes and aggregates in which there are faults, and all the components of the motor. How to understand that the engine needs a capital
How to understand that the engine needs a capital
There are several grounds for determining the need for major repairs to the engine:
- The low compression, the increased oil consumption, the dark gray exhaust.
- The low pressure of the oil, the repeated sounds in the cryopositic mechanism.
- Heavy usage of the piston group or longitudinal centreline (this wear can only be diagnosed with special equipment).
Usually, the question of capital repair of the engine is raised by 150-200 thousand tons. km travelled. However, each engine has its own peculiarities, and each motor vehicle has its own operating conditions, so in each case it can be different.
Major repairs are offered by many automobiles, but experienced motorists prefer to make the drive of the engine with their own hands.
How to make a major overhaul of the engine with their hands
For starters, note that the remont is a long, complicated and laborious procedure. To accomplish this, it is necessary to understand the device and operation of the engine, as well as to possess the necessary tools and skills. If you have any doubts that you can do better, do not take the risk and trust the engine of your car to professionals.
The major maintenance of the petrol or diesel engine can be divided into several stages:
1. Engine removal and subsequent disassembly. With hoses, tubes, connectors, and connections, all of them have become more fragile with hoses, tubes, connectors, and connections.
2. Cleaning up all engine nodes.
3. Visual inspection of all engine knots, determining wear and tear.
4. Part frettage. Locate the technical documentation for the engine to determine its normal parameters, as well as the acceptable deviations from the norm. It is with them that we will have to compare the data obtained in the process of deflecting.
5. Repair of HBOs. This includes: repairing cracks, replacing or reconstructing the rails, replacing or restoring the valve saddle saddle with valves, replacing or repairing the oil caps, rotations, etc.
6. Repair of the cylinder block. It is necessary to conduct a waste and abrasion processing of cylinders, replace the cartridge shell casings, remove cracks in the block, restore the niches of the shaft, align the private plane.
7. Renovation of the knee.
8. Subsequent assembly and installation of the engine. The engine must be carefully collected after the remonthness. Carefully review all connections and ensure that all connectors are connected so that no further problems occur.
After you finish the major repair procedure and put the engine in place, you need to roll the engine to the cold. In other words, you need to have a car and let it idling so that all the elements are perfect for further work.
