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What is tappet settings - Cars & Trucks

Posted / edited by AnonymousUser on : 20-05-2019

Answers :

Hydraulic tappets are tappets that contain a small hydraulic piston, pressurised by the engine's lubricating oil supply.[5] Although the piston does not move appreciably or frequently, it acts as a hydraulic spring that automatically adjusts the tappet clearance according to the oil pressure. This makes the valve actuation self-adjusting and there is no need to adjust the rockers. Hydraulic tappets depend on a supply of clean oil at the appropriate pressure. When starting a cold engine, with low oil pressure, hydraulic tappets are often noisy for a few seconds, until they position themselves correctly.


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