My daughter's '93 Accord's camshaft pully was sitting there loose with the
timing belt around it. It had sheared off near the back side of the pully.

We had purchased the car used and found that the previous owner had not
cared for it well. When I'd first gone to adjust the valve lash I found the
whole area filled with grit and charred oil. Cleaned it out (not removing
head... should have though...) and the car has run fairly well aside from a
few maintenance items like the front pully coming apart, etc.

So, would overheating or oil starvation in the past have lead to this sort
of thing, or what causes it?

Does the Accord's 4 cylinder engine have clearance or, since the valves did
not move, should I expect bent valves?

The manual had talked about getting a rebuilt head. Would that be better
than trying to scare one up at the junk yard? If so, anyone have a
suggestion on where to pick up a good, reliable rebuilt head (with
camshaft)?
TIA!
--
KWW