Why Engine With Hydraulic Valve Lifters Do Not Require Valve Adjustment?

Why Engine With Hydraulic Valve Lifters Do Not Require Valve Adjustment? A hydraulic tappet, also known as a hydraulic valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters require regular adjusting to maintain a small clearance between the valve and its

How Do You Adjust Hydraulic Tappets?

How Do You Adjust Hydraulic Tappets? To adjust hydraulic lifters two fingers spin the pushrod as the lock nut is gently tightened. When resistance is felt on the pushrod, that’s zero lash. The adjuster is tightened to specs then the setscrew locks it in place. When changing valvetrain components always check rocker arm geometry. How