Blown head gasket or cracked head.
Most likely head gaskets or cracked water jacket.
Shell Melina S30 marine engine oil color
You must use a special marine oil of 10-40 W or 5-40 W. Normal car and land engine oil does not displace water. Marine oils can be purchased from many large engine oil producers, and there are also companies that specialize in marine oils.
I believe it is of the same color as land engine oil
Mixing oil weights is a NO,NO.
The marine main engine lube oil sump is critical to keep the engine running. If the pump gets clogged or fails, then the engine will seize and be ruined.
intake manifold gasket,head gasket,cracked head,cracked block. was it overheated? was cold water added to hot engine?
Black water in the cooling system of a marine diesel engine can indicate the presence of contaminants, such as oil leakage or corrosion products. It may result from a failing heat exchanger, where engine oil mixes with coolant, or from the breakdown of antifreeze additives. Additionally, biological growth or debris accumulation can contribute to discoloration. Regular maintenance and monitoring are essential to address such issues promptly.
Yes, you can use synthetic motorcycle oil in a Crusader marine engine, provided that it meets the required specifications and API ratings for marine use. However, it's essential to check the manufacturer's recommendations for oil type and viscosity to ensure compatibility and optimal performance. Using oils specifically formulated for marine engines is generally advised, as they contain additives tailored for the unique conditions of marine environments. Always consult your engine's manual or a professional mechanic if in doubt.
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.
The oil capacity for a Caterpillar 3412 marine engine typically ranges from 30 to 35 gallons (approximately 113 to 132 liters), depending on the specific model and configuration. It's essential to consult the engine's manual for precise specifications, including oil filter and cooler capacities, as these can affect the total oil volume required. Regular maintenance and proper oil levels are crucial for optimal engine performance.
the oil