What should be done with core plugs during disassembly if they appear to be okay?

When disassembling an engine, it is important to ensure that all components are thoroughly inspected and cleaned for optimal performance and longevity. Core plugs, also known as freeze plugs, serve a critical function in the engine's cooling system. Their purpose is to prevent coolant from leaking out and to allow for the expansion of engine components.

When core plugs appear to be in good condition, removing them for cleaning is still a prudent choice. This process allows for the removal of any debris or corrosion that may have accumulated around the plugs and inside the maintenance holes, ensuring that the engine can continue to operate efficiently without the risk of blockages or leaks. Additionally, it provides an opportunity to inspect the holes for any damage that may not be visible with the plugs in place.

Not opting to clean and inspect them could lead to overlooking potential problems that could affect engine performance or lead to coolant leaks in the future, making removal for thorough cleaning a best practice in engine disassembly. This approach helps maintain the integrity of the engine and contributes to its overall reliability as it is reassembled.