> Gina wrote:
>
> Thank you all for your help and suggestions.  I realize my description
> of
> THUD was ambiguous

Gina,
Just a thought-grab your distributor and see if it will turn. The
crank-crank-THUD sounds suspiciously like the response the engine makes
when it's seriously out of time. If the distributor is loose, there's a
chance it turned far enough to produce that sound and no start.
Larry