When it comes to engine repair, an engine rebuild is generally a last resort. But it could be the best financial decision for you. Depending on the severity of the damage in your engine, a better option may be to actually replace it with a used or rebuilt one. Of course, there are certainly good reasons for rebuilding your engine, such as wanting to keep your car’s original parts, or if the rebuild will cost less than replacing the engine.
Why would you want to rebuild an engine instead of replacing it? There are two main reasons—the engine bearings are worn out and the pistons are not seating well. The moving parts of the engine are mounted on engine bearings that are lubricated by the engine oil, thus allowing the crankshaft and camshaft, and other parts to move freely. Given time, these bearings wear out and will need to be replaced. If the piston rings are wearing out and do not seat properly, blow-by results, allowing for oil to be burnt in the combustion chamber.
So what happens when you rebuild an engine? First, the engine is removed from the vehicle, disassembled, and assessed for wear and tear. Some parts may either be machined smooth to return them to good condition. Other parts may need to be replaced, such as the piston rings (the pistons themselves may also need to be replaced) and bearings. Once it is determined that all the many components are in good condition, the engine is reassembled and installed back into the vehicle. Many mechanics will confirm that a rebuilt engine is as good as a new engine.
If you notice any of the following signs, it may be time for an engine rebuild.
- Burning oil – If your oil level is regularly falling or if you need to add oil between oil changes, blue exhaust smoke could be a sign of blow-by.
- White exhaust smoke – Excessive exhaust smoke that is white (especially when the engine is cold), could be a sign of coolant mixing with the gasoline.
- Knocking noises – Knocking or chattering noises that go up and down with engine RPMs are a sign of worn engine bearings.
Don’t hesitate to call your auto repair shop if you're experiencing engine trouble. Schedule a diagnostic to determine which engine repair option is the best choice for your vehicle.
Have more questions about what happens when you rebuild an engine? Contact our ASE Certified Technicians at Clausen Automotive, The Hybrid Shop, for more information about engine repair options and to schedule an appointment. Since 1975, our family-owned auto shop has proudly served vehicle owners in Madison, WI, and the surrounding communities.
When it comes to engine repair, an engine rebuild is generally a last resort. But it could be the best financial decision for you. Depending on the severity of the damage in your engine, a better option may be to actually replace it with a used or rebuilt one. Of course, there are certainly good reasons for rebuilding your engine, such as wanting to keep your car’s original parts, or if the rebuild will cost less than replacing the engine.
Why would you want to rebuild an engine instead of replacing it? There are two main reasons—the engine bearings are worn out and the pistons are not seating well. The moving parts of the engine are mounted on engine bearings that are lubricated by the engine oil, thus allowing the crankshaft and camshaft, and other parts to move freely. Given time, these bearings wear out and will need to be replaced. If the piston rings are wearing out and do not seat properly, blow-by results, allowing for oil to be burnt in the combustion chamber.
So what happens when you rebuild an engine? First, the engine is removed from the vehicle, disassembled, and assessed for wear and tear. Some parts may either be machined smooth to return them to good condition. Other parts may need to be replaced, such as the piston rings (the pistons themselves may also need to be replaced) and bearings. Once it is determined that all the many components are in good condition, the engine is reassembled and installed back into the vehicle. Many mechanics will confirm that a rebuilt engine is as good as a new engine.
If you notice any of the following signs, it may be time for an engine rebuild.
- Burning oil – If your oil level is regularly falling or if you need to add oil between oil changes, blue exhaust smoke could be a sign of blow-by.
- White exhaust smoke – Excessive exhaust smoke that is white (especially when the engine is cold), could be a sign of coolant mixing with the gasoline.
- Knocking noises – Knocking or chattering noises that go up and down with engine RPMs are a sign of worn engine bearings.
Don’t hesitate to call your auto repair shop if you're experiencing engine trouble. Schedule a diagnostic to determine which engine repair option is the best choice for your vehicle.
Have more questions about what happens when you rebuild an engine? Contact our ASE Certified Technicians at Clausen Automotive, The Hybrid Shop, for more information about engine repair options and to schedule an appointment. Since 1975, our family-owned auto shop has proudly served vehicle owners in Madison, WI, and the surrounding communities.
