It is a filtered opening in one of the valve covers and allows the PCV to draw filtered air through the crankcase.
Engine Breather Systems
Inside an engine internal pressure is produced within the crankcase. This pressure is generally caused by a small leakage of combustion gasses past the piston rings, this is known as blow-by. If this pressure is not released, the subsequent build up can cause gaskets and seals to fail, creating engine oil leaks.
Engine oil coming from breather pipe
To remove a struck breather gear from a Harley engine you need to follow the instructions on the user manual.
To fit an engine block breather vent to a Rover K-Series 1.8 engine, first, locate the designated breather port on the engine block, typically found near the cylinder head. Remove any existing fittings or plugs, then clean the threads to ensure a proper seal. Install the breather vent using the appropriate gasket and tightening it securely to avoid leaks. Finally, connect the breather hose to the vent and route it to a suitable location, ensuring it doesn’t obstruct other engine components.
on top of the engine block
Highly you might die
An engine breather serves to vent gases and pressure that accumulate in the crankcase during engine operation, preventing excessive buildup that could lead to oil leaks or engine damage. It allows for the escape of blow-by gases, which are combustion gases that leak past the piston rings. Additionally, it helps maintain proper pressure within the engine, promoting optimal performance and longevity. By facilitating fresh air intake, it also aids in the overall ventilation of the engine system.
When a Daewoo engine overheats, it can cause increased pressure and temperature within the engine, leading to the breakdown of engine oil. This can result in the formation of gases and vapor that escape through the breather port. Additionally, excessive pressure can force oil out of the crankcase, causing it to leak through the breather. It’s a sign of potential damage or failure in the engine's sealing components.
To clean a crankcase breather on a small engine, first, ensure the engine is cool and disconnect the spark plug for safety. Remove the breather from the engine, then clean it using a solvent or carburetor cleaner to remove any oil sludge or debris. Rinse it with clean water, allow it to dry completely, and reassemble it back into the engine. Finally, reconnect the spark plug and start the engine to ensure proper operation.
on top of the valve cover
The engine blow by is exhaust gasses trough out the breather pipe
Engine is severely worn.
The oil might be getting into the air breather of your 2000 S10 pickup if there is a leaky gasket on the engine. It could also indicate the air breather housing is cracked.