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The Indian automobile market has been on the rise for the past few years. According to the reports, 8 cars were sold every minute in the last festive season. This is itself a record-breaking increase in sales for automobile companies. However, with the increase in sales, there has been a rise in automobile servicing and maintenance services. One of the most common issues faced by the consumers is Engine overhaul.  

Engine overhaul means removing, checking, clearing, and repairing the internal parts of the engine. The process starts with removing the engine from the car and disassembling its components to check the visible faults. It is crucial to repair the engine when it shows signs of damage to prevent it from major damage.

Here in this article, you will learn about the possible causes, signs, advantages, and disadvantages of Engine overhauling

Signs of Engine Overhauling

1.    Overheating of the Engine

2.    Reduction in Mileage

3.    Oil Leakages

4.    Occurrence of Strange noises

5.    Continuous Warning Lights

6.    Occurrence of Smoke from exhaust pipe

7.    High oil consumption

When is Engine Overhauling Necessary?

The need for an engine overhaul depends on a variety of factors:

Age of the engine – Age of the engine indicates the right time for engine overhaul. When the Engine has surpassed its mileage or operating hours, this shows that it is the right time for car engine repairing.

Usage of Automobile – This shows the distance covered by the automobile. A car should be serviced on time. The right time to service your car is after 6000 kilometers of drive, or 6 months, whichever is early.

Maintenance of Engine – Engine maintenance helps in the proper functioning, longevity, and efficiency of the engine. It includes oil changes, air filter replacement, spark plug inspection, and more. If the engine require frequent maintenance then, it is the right time for car engine repairing.

 Causes of Engine Overhauling

1.    Loss in Compression

2.    Poor maintenance

3.    Crack in engine block

4.    Incomplete Combustion

5.    Malfunctioning of thermostats

6.    Worn out Cylinders

7.    Leakage in coolant

8.    Fault in oxygen sensors

What are The Steps Involved in Car Engine Repairing

The entire car engine repairing process is important but time-consuming. Here are the steps involved in this process:


The technician examines the engine to identify the possible signs of damage. The identification of the engine includes a thorough check up of pistons, cylinders, valves, and other essential parts. After identifying the problem, if the engine requires heavy repair, then the technician follows the next step

Dismantling the Engine Parts

After the inspection, the mechanic dismantles the engine. He separates the individual components of the engine to check the possible issues.


After dismantling, the technician cleans the parts to remove any dirt, debris, or corrosion. This helps in clearing the blockage that may have occurred in the delicate pipes or tubes of the engine. The technician uses clean solvent oil and high water pressure to clean the engine.


When the parts are cleaned, each component is then inspected properly to check if the parts are working or not. This step helps to identify whether the parts match the standards of the manufacturer.

Replacement and Rebuilding

After inspection, the defective parts are replaced with the new ones. The engine is then assembled back and rebuilt. The engine is placed back into the car.


The car is tested to find any flaws or leaks that could affect the engine’s performance after the engine has been rebuilt and put back into the vehicle. The technician tests the vehicle with a drive prior to taking it back to the client.

Benefits of Engine Overhauling

Engine overhauling has the following benefits:

It helps to improve the performance of the engine Performing an engine overhaul involves working on the motor to improve its performance. When damaged parts are replaced and obstructions are removed, it allows the engine to run more efficiently. The engine operates with less friction as a result of the overhauling process. This contributes to improved engine performance and road mileage.

It helps in improving safety

A well-maintained engine improves safety while driving on the road. Engine overhauling minimizes the risk of sudden malfunctions, accidents and potential issues that can damage the car. Loss of control while driving might also result from an unexpected engine breakdown. Because of this, having a well-maintained engine adds an added degree of security and assurance when driving.

It improves the lifespan of the engine

Engine overhauling increases the lifespan of the engine. With the replacement of worn out parts with high quality original parts, a well-executed engine overhaul can eliminate the effects of damages. This increases the longevity of the vehicle. It ensures that your vehicle can run for a longer time.

It is Cost-effective

Engine overhauling is a cost-effective solution. It is comparatively cheaper than replacing the entire engine. By removing the minor damages early, you can save yourself from accidents or entire engine failure. Additionally, repairing the engine is a more environmentally friendly and sustainable method of preserving the vehicle’s health and performance.

Conclusion Engine overhaul is an important step to safeguard the longevity of the vehicle. It helps to revive the performance and functionality of your vehicle’s engine. It is necessary to identify the signs and get the engine repaired by a professional technician. Engine overhauling helps in improving the performance of the vehicle, enhances safety, and a longer lifespan. This is a worthy investment in any vehicle. Engine overhauling also contributes to environmental sustainability by reducing the demand for new engine manufacturing of engines which require heavy non-renewable resources.

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