Loose Flywheel???

[NismoTypeX]

I have a 93' 240sx It just started happening today, that when I rev my engine up to about 3K there is a weird Grinding/rubbing sound coming from the area the flywheel is. I drove the car some just to see if the problem would just go away after it warmed up......it didn't.

I tried to see if it was comming from the transmission or the engine, -I pushed in the clutch and revved it up slightly and the sound was still there. I put the engine in myself, and put a better condition Stock flywheel on it, I donno if the flywheel it torqued down to factory specs would this sound be a result of a flywheel???? its kinda loud too, so im not gonna drive it till I know and fix the problem.

----one problem after another(I searched to see if any similar threads were out, i didn't see any so i made this one)

[NISTECH]

The flywheel may be rubbing the inspection plate. Make sure the plate between the engine and flywheel is flat against the engine and not bowed in at the bottom.