Originally Posted by jeromerc

So why then on an Orion engine I had running too rich for too long never run right afterwards? Why did that Orion only run about 4 gallons when my other Orion ran 7? The one that ran 7 never ran rich, the front bearing was always clean no extra fuel pumping through it dirtying up the case and everything else. Not trying to say you are wrong but my experience is even if it doesn't ruin the bearing running them too rich is not good on anything. I know if you run it lean as hell you will fry the engine probably well before you ruin a front bearing, but again I got considerable less time out of a rich Orion than a properly tuned Orion