Pushrods in Perpetuity: Technology in Use Since 1886 is Still Kicking

The lowly pushrod has been a favorite fall guy for bad engine design. When any cam-in-block mill fails to produce adequate power, rpm, or fuel economy, how the valves are opened comes under scrutiny, in part because pushrods date to antiquity. More than a century ago, four-stroke engine pioneers Daimler, Benz, and Maybach used push- [...]

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