Originally Posted by Maxwell
It's so silly that Mercedes torques the crankshaft pulley to over 150 ft lbs. all that bolt is doing is holding the pulley to the crank, and I'm assuming there is a key in which it engages on the crank snout, so it really makes no sense for this over kill. The more I learn about Mercedes benz products, the more I start to wonder about their designs and engineering. lol.
I think why the bolt is so tight is because the crank turn clockwise, in my experience's with cars and other things that I have worked on, if something's turns at a high speed clockwise the bolt was a left handed thread. To get it broke loose the tech at Renntech suggested taking out one of the bolts that holds the flywheel to the torque converter and replace it with a longer one to stick out far enough to lodge against the housing of the tranny so that's what I did and it worked. I got a question for you guy's that have the pulley & ECU kit, do you have a sprint booster on your car?