Renault-waterlogged

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Bob

water has found its way into my rc8d oil sump. The boat is in the water(docked). The water has been choppy since yesterday and today when I checked on it, I tried to start the engine. When it did not fire up I looked below and found water and oil puddled below the engine. I removed the oil cap and felt inside water and oil came out. any help out there? Bob
 
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Mark M Smith

This might explane the water

You said the water was choppy, In following seas water can run up the exhaust and enter the motor. This could be what has happened if the choppy water was hitting the boat aft. Of course you know DO NOT START THAT MOTOR until you have changed the oil and found the source. Hope this helps
 
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Ray

Bob, Water condensation inside the oil filler

cap on most engines is normal for a motor that is used for short periods. A Marine motor would take probably 45 min. to 1 hour of running time, under load, to heat-up enough to dry out the water and moisture that is always present. All equipment that has large mass and is subject to wide tempreture ranges will condense moisture as it cools after running. Now, the important part. If the oil dip stick has a chocolate milk colored oil mixture present, then this is a major problem. This indicates water in the crankcase oil usually from a blown head gasket or broken head. Oil that shows up in the cooling water system or radiator, as in freshwater cooled motors in saltwater boats, also indicates a major engine problem as before. Water and oil that has been pushed out of the engine and remains seperate on the floor, without the chocolate mike color, is totally different. It means you have a source of oil leakage and a seperate source of water leakage. Both these leaks could be minor in expense to repair. The fact that the engine cranked and would not start very possibably has nothing to do with the oil/water problem. Or, it also could be the result of the oil/water problem. Don't let the starting problem interfere or dictate the approach in your search for the oil/water problem. The oil /water is the major problem. Let me know if I can help further as you work on the problem and eliminate different elements or causes. Good luck and I hope your solution is not costly, I'd rather that it is just a learning event. Ray S/V Speedy
 
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