I guess that would rule out the filter. If the pressure was too high could it cause the oil to yet behind the bearings? Second thought is it possible to have pressure with low flow?
I've seen that happen but it was with a lot more pressure than you stated. Like 100 psi hot.
The guy spun the rods out of a half dozen 340s revving the wee out of them. Went back to more conventional oil pressure and never spun another one.
