What Causes Engine Intake Pipe to Have Engine Oil?
1 Answers
Engine intake pipe having engine oil is caused by: 1. Prolonged engine idling; 2. Dirty air filter element; 3. Clogged or deformed crankcase ventilation system; 4. Clogged, leaking, or deformed turbocharger oil inlet and return pipes; 5. Coking of lubricating oil in the turbocharger's intermediate housing; 6. Cylinder wear leading to piston ring blow-by; 7. Excessive flow resistance in the exhaust system. Functions of engine oil: 1. Lubrication between piston and cylinder, main shaft and bearing bush to prevent part wear; 2. Auxiliary cooling; 3. Cleaning carbon deposits and sludge on engine parts; 4. Sealing to prevent leaks; 5. Rust and corrosion prevention; 6. Shock absorption; 7. Anti-wear.