Originally posted by Hud I:
I built a new engine this past winter and have run it 6 times on the pull track and I am having problems with oil pressure. It started out with about 60 pounds of pressure and has been going down ever since. I am running the volume oil pump and the by-pass plug.
Why run with the bypass plugged?
Is this some form of race engine?
What RPM range do you want to use?
What pressure do you want to see based on bearing clearances?
In truth it's not the pressure that's important, it the volume of flow that keeps an engine alive. The pressure is a measure of resistance to flow through the engine. What ever you can do to reduce resistance and encrease flow you will make more* HP and reduce strain on the drive train to the oil pump.
*Actual use less HP pumping the oil.
The other day it blew out the rear main seal.
You may have lost the rear main bearing. It is possible to run too much pressure. When I started building engines I got a copy of "Basic Lubrication Practice" by Allen Brewer, and old but still applicable guide to lubrication systems. In this age of gee whiz products it still goes back to getting the basics right.
Would like to know if anyone else has had oil pressure problems with their 292's. Any feedback would be appreciated.
