Dear Andrew in AL,

Hope you're well. Remove the front "washer". You'll note that the notch in the washer is not aligned with the longitudinal slot in the end of the crank shaft. When the washer is removed, there should be a square-edged projection from the face of the sprocket. This should be about 3/32" in depth, i.e., from the face of the projection to the sprocket's flat front surface. If the projection's edges have been rounded, or if one side of the projection is missing, the sprocket is "junk".

You'll also notice that there are rubber particles - a coarse dust - inside the timing belt case. This suggests that the timing belt has been abraded. Thus, I'd inspect the timing belt closely.

Hope this helps.

Yours faithfully,

Spook