Chris, thanks very much for the comments.   Is the filter base restrictor plate something I could see if I take the filter base off the engine?  Or should I just take it to my shop guys who work on Olivers?

I did check on the pto bearing fitting into the frame, saw that in the book after I was partly done. But it could be the problem.  I'll probably need to take that apart in the winter to recheck, and replace the bearing if needed.

I'm still leaking oil, quite a bit, at the front main seal (I think I discussed with with you earlier), will run it a few more hours -- about 4 on it so far -- and then may have to take off the timing gear cover.

Thanks again.

Tom