The concept of placing a small wheel at the end of a tappet to reduce friction has existed for decades, and in fact, roller camshaft setups have been available for the American V-8 engines we tinker ...
"Bullwinkle, that trick never works. Why don't you figure out how to make hydraulic roller lifters survive big spring pressure." "Huh?" Like Bullwinkle, hydraulic roller lifters get no respect. It ...
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