help...confused..............

[NOMIEZVR4]

well i have been workin on gettin my head off to get to my pistons because i had 2 mechanic's look at my car and the first one said i might have rod knock or my rod bearing is messed up. i had the other look at it, and he said i have rod knock or my head is messed up. so i opened my head up and that is fine. For the rod knock, i took my oil pan off and i see the rods and pistons and they seem to be fine, i moved the crankshaft but the rods and pistons are moving fine. how do i check to see if my rod bearings are messed up? or can there be another problem which i am not looking at?
the noise i heard when the car went bad was a noise like something was bouncing off the walls of the cylinder, and when it happened i could not boost over 10psi( i wasnt tryin, i noticed that before i pulled over), i also was goin about 40-50 when this happened. i pulled over rite away. well the car did start up when this hapened but i didnt drive it home i called the tow truck.
by the way this is on a 92 talon awd

 

[95tsiawd11s]

take one spark plug out at a time, and run on three cylinders. It will run like crap, but if the noise goes away, it is the bearing for that rod in that cylinder. do it to each one. If that doesn't work, you may have piston slap

 

[NOMIEZVR4]

the thing is i have the head off and most of the stuff off so i dont want to put it bck togethier and take it off again...is ther a way i can tell when i take the pistons off