question about high preassure oil rails.

[juzatheman]

hi evryone. im doing head gasgets change and just start to wonder..

now when i got the engine dissemble and my high preassure oil rails are empthy does it fill up just cranking the engine?
or do it have to fill up before put valvecovers on?

why there are more than one plug on the rails?

maby a stupid question, but i haven't done before powerstroke head gasgets change.

[bondsman]

They will fill themselves up. It takes alot of cranking. The two plugs are the dummy plugs at the front and standpipes to the rear. Make sure you get the updated ones.