I reposted this message in this forum in case it was a better subject match. Hoping for some suggestions:
"I just completed a cam change in my 427FE Center Oiler. I also changed from solid to hydraulic lifters. As suggested, I soaked the lifters in a bucket of
oil for 24 hours before installing them in the engine. The engine then sat for a little over a week before it was started. It seems now that the lifters have not completely filled with
oil or "pumped up" as it was called. To get them to pump up, do I just run the engine for a while and they will fill, or is there another suggested way to get them to pump up without disassembly? Any help or suggestions would be appreciated. Thanks."