On Wednesday 16 June 2004 7:36 pm in rec.boats Han wrote:

Thanks for the info. The previous owner had the engine and outdrive
completely rebuilt (I was told but don't know for sure). It's a 1979
Mercruiser 260. The head gasket blown with water in the oil after
less than 20 hrs of use. I wonder what could have cause that.

Either the head or the block (or both) may be warped.
Get the head and the block planed.
Be VERY carefull how you torque down the head bolts, you MUST tighten
them in the correct sequence to the correct torque settings. Read
the manufacturer's instructions and do it right.

Warping is usually caused by overheating or incorrect assembly.

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