Why is engine oil spraying out from the dipstick?
1 Answers
Engine oil spraying out from the dipstick is generally caused by excessive pressure inside the engine. Other possible scenarios: In special cases, it could also be due to an improperly designed dipstick tube that is not inserted below the oil level in the oil pan, causing a large amount of splashed oil to rush out along the tube wall during operation. Main reasons for excessive engine pressure: 1. Wear and aging of the engine's four key components (cylinder liner, piston, piston rings, piston pin). During compression and power strokes, compressed gases leak past the piston rings and cylinder liner back into the crankcase, preventing timely release of air from the engine cavity and causing pressure buildup. 2. Clogged oil-gas separator or its vent pipe.