The Stovebolt Site Forums The Shop Area General Truck Talk Who uses their truck as a truck?

I'm not worried about it.

That's dead on factory spec.

The service manual calls for. 15 psi while driving , 8 PSI while idling.

The only time it's higher than that is at cold startup. It'll sometimes go to 20 or 25 and then once it warms up it's back down to 15.

And since this engine hasn't been in rebuilt to my knowledge I figure that's pretty good for a 75-year-old engine. It could have been done sometime in the 70s or '80s I suppose. But I know the history of it back to a little over 25 years and it hasn't had any work done to it in that time