I want to know how would a camshaft ( and valves by association ) start moving on a cold start up? What gets them running and moving. Are there something they connect to to get them going?
Crank shaft has a pulley or a sprocket at the front end, which turns a cam shaft/shafts through a cam chain or cam belt (timing belt). 1 turn of a cam shaft = 2 turns of a crank shaft. At the other end of a crank shaft is a flywheel which being turned by a starter motor for a start. Crank shaft is the first shaft in the whole engine which turns everything else.