Odd flapping when cranking
 

Hello, my 95 ESi (Civic 1.6L SOHC non-vtec D16 variant), hasn't been
used for a few months, but I warm it up every few days. Recently,
there has been an odd shuddering sound when cold, and gradually
disappears when the EACV kicks in and it has idled for about 2
minutes.

Today I cranked it but it won't start, and there was a strange
"flapping" sound, like a cut belt whipping around. Checked the visible
belts, nothing. Haven't checked timing belt, but it was replaced a few
months ago (orig parts), and hasn't been used since.

I'm nervous about cranking further, will check the timing belt
tomorrow and post back.

Any theories? I'd really appreciate it.