im wanting to rebuild this 2.0 dohc and want to know where i can get engine timing and torque specs for the cyl head bolts and crank bolts. guy i got it off of blew one of the valves through the piston and i have to tear it all down so i need all the specs. and a question as how to get the head off....the 2 hex bolts, is that how it comes off? there in the center of the head between both cams?