Hello,

I recently went through this routine on the 82 500 SL with the 117.962 engine. My markings on the harmonic balancer are different so no comment on your markings, as far as how much strecth you have. On the chain, I selected a link at random and ground off the ends with a Dremel in just a few minutes. I replaced the chain and promptly lost one of the 2 microscopic e-clips (I felt that peening the new master link was a bit dicey for me). I could have gotten a new master link from our sponsor here but did not want to wait. I checked every hardware and tractor supply store in what seemed like all of Ohio for a replacement e-clip without success because the lost one is smaller than anyone carries. As a solution, I went to my local hardware store and got a #35 master link (it has one retaining clip instead of the 2 e-clips) and it fit like a glove. I faced the opening of the fastening clip away from the direction of travel.

Good luck. I just wanted to share this solution in case anyone else losers one of the little buggers.

RIch Mayer
82 500 SL