What is the lifespan of an engine after being repaired from water damage?

[SanDamian]

An engine repaired after water damage can generally last 4-5 years without issues. Detailed explanation as follows: 1. When the damage is minor: The repaired engine's lifespan depends on the extent of damage. If the engine only had water ingress without structural damage, simply removing the spark plugs to drain water and replacing the engine oil and coolant will suffice. This won't affect the engine itself, maintaining a normal vehicle lifespan. 2. When the damage is severe: If water entered the cylinders along with the engine, it becomes complicated. Cylinder water ingress can bend connecting rods, potentially even breaking them and damaging the engine block. In such cases, it's hard to predict reliability as it requires engine disassembly to replace connecting rods or even the block. Post-repair usability becomes uncertain, depending on repair quality and replacement part quality. Though thorough repairs can restore normal function, substandard parts or poor workmanship may lead to future operational issues.