[blue lander]

Hi, I picked up an old Philco radio/turntable at a thrift store, I believe it's model 42-1002p. Someone had cut the wires going to the turntable motor for reasons unknown. I reattached the wires and the motor turned but not the turntable platter itself. So I removed the platter and found that the idler wheel was stuck. I squirted some naphtha in it and now it turns freely.

I put the platter back on but I noticed that it doesn't actually cover the idler wheel even when fully inserted. The idler wheel spins but it doesn't spin the platter.  I didn't notice if did before I disassembled it unfortunately. Is a part missing? Is the platter not sitting correctly on the spindle? Any ideas?