What type of maintenance is expected after a diesel engine overhaul?

After a diesel engine overhaul, break-in maintenance and fluid changes are expected as part of the maintenance regimen. This is crucial because when an engine is overhauled, various components such as piston rings, bearings, and gaskets are either replaced or refurbished. During the initial use of the engine post-overhaul, break-in procedures help in ensuring that the newly installed parts settle and function optimally.

Break-in maintenance typically involves monitoring the engine's performance closely and adhering to specific operational parameters. It often includes changing the fluids—such as engine oil and coolant—after a predefined period to remove any contaminants, metal shavings, or debris that may have accumulated during the overhaul process. Additionally, it allows for the adjustment of components that may settle or wear slightly during the initial hours of operation.

This attention to maintenance during the break-in period significantly contributes to the longevity and performance of the engine, preventing premature wear or potential failures. Thus, this choice correctly reflects the proper follow-up care for a diesel engine after an overhaul.