If the PCV (Positive Crankcase Ventilation isn’t working correctly, it can cause problems that range from poor idle quality and serious oil leaks to sludging and internal engine damage from oil contamination. Every piston engine no matter how well designed and assembled has a certain amount of blow-by past the rings, and if it can’t get out of the crankcase pressure will build up and water vapor, excess gasoline, and combustion contaminants will collect in and dilute the motor oil.
According to studies by the University of Michigan, only about 60% of today’s teenagers between 16 and 19 have a driver’s license. What??? I was bugging my dad beginning at 15 to get into driver’s ed by 15 and a half so I could be licensed by 16 years and one day...
Backpressure can seriously sabotage your efforts to get plenty of air into the cylinders, yet many people overlook it and don’t know how to detect its presence. And how is the MAF sensor affected?
In this installment of Greg’s great exposition of high-performance rocker arms, we’ll be looking at the science and geometry involved, which you really must understand before you start building an engine.
Our man Greg has produced such a stupendous amount of truly useful copy on this subject that we’re going to present it in three parts. This time, we’re giving you interesting info on bore finish and block preparation.
