Talk:Rocker cover

"Timing cover"?

What exact engines feature a valve cover known as a "timing cover"? Many valve covers cover part of the timing gear, over the uppermost part. Many more don't. In either case, the primary purpose is to cover the camshaft(s) and/or rocker arms. A timing belt cover fits on the END of the engine, in an up and down fashion, and is what is used to cover the majority of the the upper timing gear(s), the belt/chain, and the lower drive gear. That's why it's called a timing belt cover, because it only covers the timing gears and belt/chain. If there is any engine that has valve covers called "timing covers", it's not for the reasons stated in the article (that it's because the valve cover covers the cam-drive pulley(s)), it's because the cams are the "timing system" of the engine, and the manufacturer just want to sound different (I'm going to guess it's a German car maker, if there is in fact anyone who calls them that). In that case, it would have nothing to do with whether it covered the pulleys or not; it's because it covers the camshafts, which are what actually do the timing of the engine. The belt and drive pulleys simply serve to drive the camshaft and keep it sychronized with the crankshaft..45Colt 06:26, 27 October 2015 (UTC)