All About Semi-truck Engine Overhauling
All About Semi-truck Engine Overhauling
Posted on October 10, 2023
Semi-trucks are the workhorses of the transportation industry and are responsible for moving goods across long distances. To keep these trucks running efficiently and reliably, regular maintenance is crucial. One essential aspect of care for semi-trucks is engine overhauling. Check out this semi-truck engine overhauling guide to explore what a semi-truck is, what it includes, and when it is necessary to overhaul your engine.
What Is a Semi-Truck?
A semi-truck, or semi-trailer truck, is a large vehicle with a tractor unit and one or more semi-trailers attached. These trucks are specifically designed to transport heavy goods over long distances. The tractor unit contains the engine, transmission, and cab for the driver, while the semi-trailer(s) carry the actual cargo.
What Does a Semi-Truck Overhaul Include?
A semi-truck overhaul is a comprehensive process that involves the complete disassembly, inspection, repair, and reassembly of the engine components. It is more extensive than regular maintenance and is usually done after significant mileage or when specific issues arise.
When to Overhaul Your Semi-Truck?
Now that we understand what a semi-truck overhaul entails, let us explore the signs indicating when to consider this service.
Crossing Mileage of 1,000,000 KM
High mileage is one of the primary reasons for a semi-truck engine overhaul. Generally, after crossing the 1,000,000-kilometer mark, it is advisable to consider an overhaul. This is because the internal components may wear down significantly, leading to decreased performance and increased risk of breakdowns.
Noticing Foam on the Dipstick
Foamy oil on the dipstick indicates the presence of coolant in the oil system. This could be due to a leaking cylinder head gasket, cracked cylinder head, or other issues. These problems can cause extensive damage to the engine if not addressed promptly, making an overhaul necessary.
Burning Oil Smell
A strong smell of burning oil inside or outside the truck cabin could indicate internal leaks or excessive oil consumption. These issues can lead to engine damage, necessitating an overhaul.
Decrease in Oil Viscosity
When the oil inside the engine becomes thin and loses viscosity, it fails to provide sufficient lubrication. This can increase friction and wear between components, eventually requiring an engine overhaul.
Rough Engine Functionality
If you experience a rough-running engine, such as misfires, stalling, or lack of power, it could indicate various engine problems. An overhaul can help identify and address these issues, restoring the engine's functionality.
Heavy or Blue Smoke Exhaust
Excessive smoke coming from the exhaust, mainly if it is heavy or blue, is a sign of oil burning in the combustion chamber. This can be caused by worn piston rings or other internal engine problems that may require an overhaul.
Cylinder Compression Is Low
Low cylinder compression can reduce engine efficiency and power. Regular compression tests can help identify when compression levels have dropped significantly, indicating the need for an overhaul.
Filter Pleats Contain Large Metal Particles
During regular maintenance, if you find large metal particles in the oil and fuel filters, it suggests internal engine wear and potential damage. An overhaul is necessary to address these issues and prevent further damage to the engine.
Conclusion
A semi-truck engine overhaul is a comprehensive process that ensures the longevity and performance of the engine. By regularly monitoring the signs mentioned above and addressing them promptly, you can avoid more significant engine issues and costly repairs. However, contacting a professional mechanic or service center specializing in semi-truck engine overhauling is essential.