So I tested the oil pressure and it's 28 psi @ idle and 48 @ 5000 (hot). After poking around a bit I removed the rear cct and noticed two copper washers stacked under the retaining nut. I checked the cct and found oil bypassing the plunger so will order a set on tuesday. I assembled the engine with only one copper washer under the nut and flashed it up. The klack klack klack is gone, so that much differance in depth must make just enough change for the tired cct to stay in contact. I'll work my way through the rest of my list and go ride it after all my parts are in. Thanks for the helpfull hints!