Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
Hydraulic Tappet
A design of tappet (or cam follower) in two telescopic parts providing an internal cavity into which engine oil under pressure is admitted through a non-return valve during running, thus eradicating all clearance between the camshaft, the tappet and the valve, so silencing the actuation and giving self-adjustment.
