1) mb sealant is made by loctite . see post#2: http://www.peachparts.com/shopforum/tech-help/145246-confused-about-mb-sealants-engine-mating-surfaces-loctite-5900-permatex-right-stuff.html


2) you’ll need a special tool to lock the crankshaft pulley/flywheel, cause the bolt is torqued pretty high. Although in the link, a forum member mentions that bolt torque = 250-300lbs I double checked my Haynes manual which claims that it should be at 300Nm or 221lbf ft.
see post#8: http://www.peachparts.com/shopforum/tech-help/129996-crank-shaft-bolt-removal-m103.html

3) CHAIN: ive also read that the chains are pretty durable, but I would definitely check it to see if there is any stretch(supposedly 5degrees =max.).

Good luck cant wait to see the write up