Understanding "Blow-By" in Diesel Engines: A Look at the Ford 7.3L Power Stroke

A recent video uploaded by user JonnySteele sheds light on a common phenomenon in diesel engines known as "blow-by," using a 1999 Ford F-250 equipped with a 7.3L Power Stroke turbo diesel engine as a demonstration. The video visually explains blow-by by placing a ping-pong ball on a specific engine component, illustrating how internal pressure causes the ball to move. The accompanying narration provides details about the 7.3L Power Stroke engine, noting its factory production of 275 horsepower and its reputation for durability and reliability. This engine, featuring a Garrett turbocharger, has long been a favorite among diesel enthusiasts for its robust performance. The demonstration offers a clear, practical insight into engine mechanics, particularly relevant for owners and admirers of older diesel trucks.