Editing Overhead camshaft engine (section)

===Gear train===
A [[gear train]] system between the crankshaft and the camshaft is commonly used in diesel overhead camshaft engines used in heavy trucks.<ref>{{cite book|last= Bennett|first= Sean|title= Modern Diesel Technology: Diesel Engines|pages= 88–89, 362|publisher= Cengage Learning|location= Stamford, CT US|isbn= 978-1-285-44296-9|url={{Google books|8OzKAgAAQBAJ|Modern Diesel Technology: Diesel Engines|page=88|plainurl=yes}}|access-date= 4 January 2015|quote= In most commercial diesels, OHCs are gear-driven.|date= 2014-01-01}}</ref> Gear trains are not commonly used in engines for light trucks or automobiles.<ref name=Hillier/>