Pressure testing question

[mattinky]

Quick question, if you're pressure testing a saw that uses the crankcase to pressurize the oil tank how to you keep the pressure from bleeding off through the oil tank? Just block the oil line? Matt

 

[Lakeside53]

whatever it takes.. but.... crankcase pressures are usually negative to neutral averaged, so are you sure of what you are saying? Sure, crankcases are used to pump oil on some saws (like a PM610 forexample), but that's just fluctuating pressure acting on a diaphragm.