blow-by

**blow-by**

Blow-by refers to the leakage of combustion gases that escape past the piston rings into the crankcase during an engine’s operation. This phenomenon is common in internal combustion engines and can affect engine performance, emissions, and oil contamination. Understanding blow-by is important for diagnosing engine wear, maintaining proper compression, and ensuring optimal engine efficiency. Use this tag for posts related to engine mechanics, troubleshooting blow-by issues, and engine maintenance tips.