Why do I need to run the engine after a major overhaul?

If your iron friend recently experienced a major overhaul of the "heart" (that is, the motor), then in the near future you need to take care of its careful operation, without jerks and races. What is it for? The answer to this question you will find in this article.

Why do we need this process?

Break-in of the engine after a major overhaul is a mandatory procedure, without which not a single motor can survive, which has recently undergone serious structural changes. The reason is as follows: new parts that have been installed instead of worn out must go through the grinding stage, after which the level of friction between the sleeve and the rings will return to its place.

As a rule, after boring and polishing new parts, the repaired motor must pass 2 thousand kilometers in a gentle mode. Many motorists believe that after 2,000 running-in of the engine after a major overhaul is completed and it can be fully exploited. This is fundamentally wrong, because during this period of time new parts only get used to each other, and finally they are adapted only after 15 thousand kilometers. Only then can you squeeze out all the juices from the car. If this happens earlier, all the new parts will be severely damaged, and then you will have to go to the service station again, ordering the same services from a familiar mechanic. Repair of engines, as a rule, is not cheap, and buying a used motor will not save you from significant expenses.

According to experts, the load on the repaired unit should not exceed the mark in more than 60 percent of its overall capabilities. This provides for smooth gear changes, slow acceleration and braking, the lack of increased revs. That's when engine break-in after a major overhaul will give you a new, powerful and reliable motor that will ensure the smooth and smooth running of the car.

Do you need high-quality details in this procedure?

Of course yes! Any detail, even the highest quality, needs to be run-in. And it does not matter on what machines the engines are being repaired - UAZ, VAZ or BMW (the result is the same). And if one of the mechanics claims the opposite, this indicates a low level of his qualification as a specialist (or the desire to "cut down" more money from the client).

How effective is this procedure?

After the break-in, the repaired internal combustion engine will fully exhibit its inherent characteristics, namely:

1. It will work steadily at idle speeds (the frequency does not exceed 600 rpm).
2. When you switch gears from low to high or vice versa, as well as when the gearbox shifts to neutral, the car does not stall and does not emit unusual sounds.
3. The rotation of the crankshaft (with the help of the handle) is made without any additional efforts.

Such properties the car will find, of course, not immediately, but be sure - after 2 months of operation in the city and outside its running-in engine after overhaul will allow it to be fully exploited.