Somthing is sticking....need help

I am almost ready to put my 2.2L engine back in my 1970 911 after an engine rebuild...As i am rotating the fly wheel back to TDC (to put distributer on, I hear a small "Clunk" and i cannot move the flywheel any futher. Im thinking-- "ohh S%#*"

Just to make sure the clunk isn't somthing inside the engine i separate the engine and trany slightly by loosening up the bolts. Now when i try to turn the flywheel it does turn...there must somthing sticking out off my pressure plate??? wht the hell is goin on here? This is a new clutch/ pressure plate assembly but comparing the old and new they look very similar b/s one is kevlar and one isn't .

Please give me suggestions as to what might be sticking....thanx

Paddy OD
1970 porsche 911 widebody 2.2L

Can you turn the transmission input shaft without it sticking?

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Tyson Schmidt
72 911 Cabriolet
92 C-2 Cabriolet

The transmission was only slightly loosened so the splined mainshaft was still engaged then i could turn it over. so i know its not the tranny or engine. I kno it has to be the pressure plate or clutch???
still need help

did you properly position the T/O bearing, attach the trans and then pull back the fork and turn the bearing 90 degrees after the trans was attached? 70-71 only.