I'm glad I asked you guys. It sounds like there is still hope to revive this sick car.

I found the pins on the harmonic balancer sheared. The halfmoon cutouts on the crankshaft appear to be ok with no damage. I will need to get a brand new harmonic balancer and a brand new crankshaft bolt. I will also need to get an 18mm tap as per MBDOC advice.

Also, Larry, are the alignment pins welded to the balancer? Or are they separate pieces of metal that must be inserted? The reason I ask is because I found evidence of what was left of the pins "stuck" against the inside of the balancer like as though it was welded but I couldn't tell.

In addition, is the crankshaft made out of hardend steel?

Thanks guys,

Herb
'82 240D
'87 300SDL
'92 300D 2.5 Turbo