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Camshaft Basics Lobe Lift

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Lobe Lift and Duration<br>Duration number one is the duration at a solid lifter's lash point. The lash point at the lifter is the lash at the rocker, divided by the rocker ratio. Arrow two is the so-called "advertised duration" and is usually 0.006 inch (6 thousandths) for hydraulics and 0.020 inch (20 thousandths) for solids. The red arrow indicates the duration at 0.050 inch (50 thousandths).
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 Lobe Lift and Duration
Duration number one is the duration at a solid lifter's lash point. The lash point at the lifter is the lash at the rocker, divided by the rocker ratio. Arrow two is the so-called "advertised duration" and is usually 0.006 inch (6 thousandths) for hydraulics and 0.020 inch (20 thousandths) for solids. The red arrow indicates the duration at 0.050 inch (50 thousandths).  View Related Article

 

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