Bill Degener ha escrito:

I took off the bottom metal cover and noticed a pulley with no belt. I
looked all around and couldn't find the old one. I wondered if the old
stretched belt would work. I glanced over at the cover and grabbed what
i thought was the old belt. I got a finger full of reverted goo that
looked like a good belt. Got the stretched one and compared it to the
goo and viola. Installed and plays fine.

good news!
how old is the unit? I dont think I have ever seen a vcr with this goop
problem, it was more common on old open reel and cassette decks from
the 1970s. The rubber breaks down and either goes hard and brittle or
the opposite (unlucky) - as in your case! I have found alcohol and old
rags a good way of removing it.
-B