What action would you take in the event of M.E oil sump level rising? What could be the problem and how would you fix it?

1. The action to be taken would depend on how fast the level was rising and what was causing it to rise. 
2. It could be due to water or fuel entering the sump, the engine would have to be stopped as soon as it was safe to do so.
3. Tests should be carried out to tell if it were water or fuel.
4. If it were fuel, you can normally smell this in the oil, but a flow stick test can be done.
5. Water has a tendency to form the colour of the oil, depending on the extent of contamination.
6. If it were fuel the most likely cause would be a faulty injector, therefore, it would be changed.
7. It were water it could be coming from the cracked liner or liner O-rings, therefore possible liner change to solve the problem.
8. The oil may have to be changed depending on the extent of contamination but the L.O purifier may be able to cope with it.
9. If the decision was to replenish the full lube oil of the ME sump tank it would be better to clean the tank as well.