I have a 1984 300D 185,000 really nice car The previous owner said the car was driving just fine until the crankshaft bolt wiggled out and the harmonic balancer and pulleys fell off. I have read and read and read all the posts I can find about this issue and from what I have learned the best thing for me to do is get a used HB new crankshaft bolt, new hex bolts, and new pins. The problem I read about the dowels or pins is that the new ones from the dealer were at one point a little long (4mm) and if you didn't trim them down it would put too much pressure on the pins after cranking down the 27mm bolt and they would shear off. I am a little concerned with the end of my crankshaft and I will add pictures below. I read a post that said to put HB on crank and drill out each keyway with a 10 mm 3 lipped twist drill bit put a little temp loctite on OVERSIZED dowels and put them in and then the bolt with a little temp loctite on that as well. Where can I get the oversized dowels or pins and the drill bit to drill it out? Also read people using JB Weld or Loctite 660 on the worn out pins and filling the void with that. Or am I being a worry wart and all I need to do is get new pins and put her back together?? Hopefully the pictures are worth a thousand words. Looking for thoughts and ideas. Thanks in advance.

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