truckernix: Old thick and sludgy oil in the line to the gauge. Cleaned the line out with a bit of air and..pressure comes right up. Still have the 30 Lb gauge so it reads pegged when cold but have 20-25 Lbs at idle all warmed up. On some hot summer days it will go to 15 but so far so good. Pan has been pulled to change the main bearing seal. That was a good time to check and clean the screen. I have had a few bits of dirt get to the rocker arm feed line. They are a mystery cause the engine is very clean in side. My best guess would be the rocker arm shafts them self. Good news? I am very good at removing the rocker arms and line and have become very good at setting the valve lash. So there has been a benefit from all of this. smile


Steve H