* Blown head gasket: This is the most common cause of water leaking into the cylinder. When the head gasket fails, it can allow coolant to seep into the combustion chamber. This can cause a number of problems, including engine overheating and loss of power.
* Cracked head: A cracked head can also allow coolant to leak into the cylinder. This is a more serious problem than a blown head gasket, as it can require the replacement of the entire cylinder head.
* Warped head: A warped head can also cause coolant to leak into the cylinder. This is often caused by overheating the engine.
If you think that your Polaris Explorer 400 may have a problem with its head gasket, it is important to take it to a qualified mechanic for diagnosis and repair.
How to get water out of the crankcase:
If there is water in the crankcase, it is important to drain it as soon as possible. This is because water can damage the engine bearings and other internal components. To drain the water from the crankcase, you will need to:
1. Remove the oil drain plug.
2. Allow the oil and water to drain out of the crankcase.
3. Replace the oil drain plug.
4. Add new oil to the crankcase.
You should also change the oil filter after draining the water from the crankcase. This will help to remove any contaminants that may have gotten into the oil.
If you are not comfortable changing the oil and oil filter, you can take your Polaris Explorer 400 to a qualified mechanic for service.
