Water in the oil is a telltale sign of leaking cylinder head gasket.
From The Information You Have Asked. You Have An Engine. There Is No Engine That I Know Of Where The Oil And Water Run Together. So The Answer Is NO. You May Want To Change Your oil After You Get The Engine Back Together And Running. But No You Do Not Need To Drain The Oil Out To Change The Water Pump.
it should not be a water in oil tank it is mean engine cracked
oil is milkey white or foamey
Check the oil on your dipstick. If the engine is warm, the oil level will be high and look milky or light brownish. If the engine is cold, the oil level will be high and you will be able to see water droplets on the end of the dipstick. If the oil is mixed with the water it will be grey. If not the water will be at the bottom.
no oil in engine or water in radiator will cause engine to seriously o/heat! and eventually seize! major engine damage!!
Check the oil on your dipstick. If the engine is warm, the oil level will be high and look milky or light brownish. If the engine is cold, the oil level will be high and you will be able to see water droplets on the end of the dipstick. If the oil is mixed with the water it will be grey. If not the water will be at the bottom.
The MOST COMMON PROBLEM with that engine is that the intake manifold gasket BLOWS / LEAKS water into the engine crankcase and mixes with the oil. Replace the intake gasket and FLUSH The engine oil and change the oil filter SEVERAL TIMES Untill engine cleans up.
Blown head gasket
engine burning oil( white or blueish exhaust smoke ), water in oil, oil in water, water in exhaust.
There is nothing to worry about with water in the exhaust. However water in your oil could suggest leaky gaskets. Depends where in the oil system or engine it is.
Water, If water gets into the oil, usually as the result of a broken head gasket or a cracked head, it will form an oil water emulsion. Stop the motor immediately as this will damage the rest of the engine.
They do not mix, the oil and water circulate in separate closed systems within the engine block. The water is pumped through the radiator, then through special channels in the engine in order to cool it by means of heat transfer. The the oil is pumped from the oil pan to the head, pistons, crank, and other essential engine components. If the water and oil in your engine do happen to mix it's typically a problem due to a blown head gasket, or cracked or warped cylinder head. Failure to repair this condition can result in engine failure.