Alrite thats the bolt im talking about, my other m117 seems like the mechanic just took it off--like unscrewed it....how do i do this ??

About the balancer and stuff i got it ! blah wasent tooo bad seem pretty easy t ook me about 2-3 mins to take it off and yes i did mark it so i can put it easier. So before i start it i have to check the cylinder one which is the first one to the right of the engine that the piston is all the way up.. blahh more hard work jeez--i really want to get it done by today/tomorrow theirs a benz meeting that i want to attend ( everytime theirs a benz meeting my car breaks down !!! this is the 5th time--kinda tells u how jinx i'm)

Thanks for all your help so far!!!