Have you ruled out any drive belt,alt,p/s etc. noise? What does the oil pressure read? A 300 has a gear "whine" to it that sounds like a high pitch buzz.(bee sound) that is normal.Is this similar?
I have a question for you. Why the heck would you start replacing parts if you never even heard the thing running??????????????????83fsb said:Just installed new timing gears on my I-6 300 83, and can hear a noise that sounds like its coming from the oil pan, not knocking or ticking, constant humb or rubbing noise. First thought was cam gear was rubbing cover so removed and pushed on a little further, saw only slight apperance that it was touching cover, also cleaned oil pan and replaced. Have never heard this veh run before as I just got it any ideas. Noise increase with throttle and doesnt appear to be tranny or clutch related.