Need an assist please. At the end of my rope!

[AJAX87]

I have a 95 SPX with a NO-START situation. It cranks but won't turn over. The actual cranking itself is a big clue to what the problem is. When I crank it the crank doesn't sound nearly normal. You know how a normal crank sounds IE...."Crrank..Crrank..Crrank..START?" Well now there is no space between the cranks. It just goes..."CrrrRRRrrrRRRrrrRRRrrrRRRrrrRRR" Endlessly with no start. Does anybody know what it could be? Not a fuel issue. Also, the actual cranking sound is weird. Instead of that winding-up, "WHIIRRRRING" sound, it more of a buzzing combined with the whirring....not normal at all.

 

[lavasioux]

Is the starter even turning the engine?
Pull the plugs and see if the pistons are moving?

 

[tobytd]

Starter drive stuck on starter motor shaft?
Pull the starter, make sure the Bendix is free, lube the shaft