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  2. [Amel Yacht Owners] Flooded onan

Re: [Amel Yacht Owners] Flooded onan

Bob Grey
 

Bill, when drained water was not green and level of coolant was not low. Onan not used during crossing about 10 hours heeled on starboard tack.  Agree normally water in oil would be head gasket, ran Onan for 4 hours after second oil change, oil clean and no trace of milkiness.

I estimate 1+ liters water, nothing since.

I'm scratching my head. Only thing for sure is Onan hull exhaust and cooling water ports would have been under water during crossing.

On Thursday, April 28, 2016, 20:42, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] wrote:

 

Bob,

I think that for water to be in the oil from the exhaust, it would have to be pushed past the pistons and rings. This is unlikely because if seawater enters through the exhaust system, it will usually bend or break piston connecting rods.

If your coolant level decreased at the same time, it is most certainly a blown head gasket or cracked head. Did the coolant level decrease? Can you estimate the total increase in volume of the oil including the water?

The most likely cause is a blown head gasket, or some other breach in the coolant pathway. I think that you should get an Onan mechanic on the boat. If you are still under Amel warranty contact SAV.

Bill Rouse
BeBe Amel 53 #387
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