How well was this packed if it was shipped to you? One reason I ask is that Jurgen Kuschnik (German SL66 repair person) told me to take care to protect the focus knob, which he described as the most vulnerable part on the camera.
In the US, Harry Fleenor knows this camera and has the parts for replacing, if needed, but there will be a considerable time wait. When my SL66 arrived DOA on the bottom of a box (ineffective air bubble bags) I sent it to Jurgen Kuscnik, who got it working perfectly. Dead Link Removed
Perhaps you could send Jurgen an e-mail describing your problem. Working properly, the SL66 is of course a lovely machine. Perhaps the seller will work with you on the repair price, or maybe a return with refund is the best option.