I have what sounds like a pretty decent rod knock going on in my motor, along with signs of metal dusting all through the oil.

It looked to me just like babbitt metal from the bearings, although, I took the main girdle off to find that the bearings are only a little flattened showing tiny bit of copper around the oil channels. The rods look perfect!!!

At this point im thinking either valve train, piston slap, or bad wrist pin. Any thoughts?????

At this point I think I am going to put new mains in and reassemble it. Then pull the valve train apart and examine that.

 

No one seriously has any idea, huh??