New member

3208 whining from front cover

Hello! I have 2 cat 3208 375hp 1z18.. .
I get a strange whine coming from the front of the engine. Using a sterhoscope it seems stronger around the crankshaft pulley and oil pump area. I replaced the oil pump and the crankshaft bearings as well as the timing advance gear and still the whining presists! Any ideas??