Posted for CavittP@aol.com:

In my case - L235/320 - I had problems with oil cooling using a 9-vane cooler.  Totally inadequate.  There were no leaks in baffling.  So....  Switched to a 13-vane cooler.  1,000 hours of very adequate oil cooling.  Advise you do the same.

Pete Cavitt - N320PL
619-701-0784