Can You Change Rod Bearings With Engine in Car?

Introduction

Changing rod bearings is a complex and time-consuming task that typically requires removing the engine from the vehicle. However, there are a few instances where it may be possible to change rod bearings with the engine still in the car. This can be a significant time saver, especially if the engine is in a difficult-to-reach location.

When Can You Change Rod Bearings With Engine in Car?

There are a few factors that will determine whether or not you can change rod bearings with the engine still in the car:

The type of engine: Some engines are designed to be easier to work on than others. For example, engines with an oil pan that can be removed without removing the engine are typically easier to change rod bearings on.
The amount of space available: If there is not enough space to work on the engine, it may be necessary to remove it from the vehicle.
The tools available: Some tools are essential for changing rod bearings, such as a torque wrench and a bearing puller. If you do not have the proper tools, it is best to leave this job to a professional.

How to Change Rod Bearings With Engine in Car

If you have determined that it is possible to change the rod bearings with the engine still in the car, you will need to follow these steps:

Remove the oil pan: The oil pan is located at the bottom of the engine and holds the oil. To remove the oil pan, you will need to unbolt it from the engine and then carefully lift it off.
Remove the crankshaft: The crankshaft is the main shaft that drives the pistons. To remove the crankshaft, you will need to remove the bolts that hold it in place and then carefully lift it out of the engine.
Remove the connecting rods: The connecting rods connect the pistons to the crankshaft. To remove the connecting rods, you will need to unbolt them from the crankshaft and then carefully lift them out of the engine.
Remove the rod bearings: The rod bearings are located on the connecting rods and allow them to rotate smoothly on the crankshaft. To remove the rod bearings, you will need to use a bearing puller.
Install the new rod bearings: Once the old rod bearings have been removed, you can install the new rod bearings. It is important to use new bolts when installing the rod bearings.
Reinstall the connecting rods: Once the new rod bearings have been installed, you can reinstall the connecting rods. Be sure to torque the bolts to the proper specifications.
Reinstall the crankshaft: Once the connecting rods have been reinstalled, you can reinstall the crankshaft. Be sure to torque the bolts to the proper specifications.
Reinstall the oil pan: Once the crankshaft has been reinstalled, you can reinstall the oil pan. Be sure to torque the bolts to the proper specifications.

Conclusion

Changing rod bearings with the engine still in the car can be a challenging task, but it is possible with the right tools and knowledge. If you are not comfortable performing this task yourself, it is best to leave it to a professional.