Yon Garde,
I tend to agree with Old Smokey... As long as all the gauges read okay (and all else seemingly normal), for that flight, I would have done what you did--continue on. (especially considering it was a short 1hr flight with the aircraft and engine type you had on hand)
However, Canuckbirdstrike also makes a valid point that you as a pilot obviously can't tell from your seat what the physical damage to the engine might be. It is for that reason why if I were to fly say a twin on an overseas flight, I would have returned for an engine inspection... Not worth the risk. Plus I hate swimming.
