Dry hydraulic follower

[Oldred_V8S]

Anybody else had this?

I stripped the top of the engine to investigate a persistent tapping noise (not manifold gaskets) and found that a couple of the hydraulic lifters were bone dry. Others that I pulled out were a lot heavier and had a liberal coating of oil around them. It is almost as if the oil had just drained away or not got in to start with. Has anyone else had this issue?

I am pleased to say the cam and the face of the followers had virtually no wear in either of them.

Engine is a 400.

[Oldred_V8S]

Thanks for the feedback guys, I think I will be stripping the lifters.