The ENEMY Of Your Engine - 5 Ways To Reduce BLOW-BY / Watch This Before Rebuilding Your Engine

The primary job of the piston ring is to seal the combustion gases away from the crankcase. The combustion gases and unburnt fuel that escapes past the piston rings are commonly referred to as blow-by. Higher blow-by equals less engine efficiency.

Also, higher levels of blow-by increase contamination levels in the motor oil, and dirty oil is NOT a good lubricant. Not only does blow-by contaminate the motor oil, it also raises the oil temperature, which also shortens the life of the oil.

In total, increased blow-by results in reduced engine efficiency, oil life and engine life. Accordingly, it's important to reduce blow-by.

In this video, Keith Jones walks through the 5 ways to reduce blow-by. Links to the related videos are below:

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