Picking the right valvetrain for your engine can be a daunting task. Solid flat tappet, hydraulic flat tappet, solid roller, hydraulic roller; these are the choices, made even more difficult due to ...
On engines equipped with hydraulic tappets, zero lash at maximum tappet plunger rise can be determined by rotating the pushrod with your fingertips while slowly turning the lash adjusting nut. The ...
My 2003 Volkswagen Polo has 18,000 miles and over the last 5000 miles has developed a tapping noise from what I thought was the valve gear, as it sounded a bit like a hydraulic tappet - the noise ...
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