and I notice it knocks def from there i checked, like after I rev the engine, it makes a knocking/vibration noise as it revs down from revving up. but it doesnt do it like ALL the time. im using max life sythetic oil btw if that makes a difference, but timing chain huh? i mean could a timing chain make that noise, and it's not something super serious like my pistons or cams making the knocking noise, or would i notice that more from up above the silver thing