Over time, as engine oil starts to gather dirt and increase in viscosity, the interaction between the camshaft and tappets begins to wear down both components to a point where an audible noise can be heard between them as the camshaft spins and the lobes lift and then drop the tappets.
How do you stop a noisy tappet?
How to Quiet Noisy Lifters (Fix the Lifter Tick & Prevent Damage)
- Adjust the Valves.
- Swap Out Damaged Pushrods.
- Flush out the Old Oil.
- Clean the Lifters with Oil Additives.
- Buy New Lifters.
What does tappet noise mean?
The tappet noise refers to the noise. made by Lash or clearance between rocker arm and valve stem in an engine. It also occurs as a result of lash or clearance. between valve lifter and valve stem at start up for at least 30 seconds.
