I'm assembling my heads after having them milled flat after a blown head gasket, and I'm a little confused about the hydraulic lifters (never had them before). 
The FSM mentions nothing about priming them, but when I watched a video (pretty good one actually) on YouTube, during the installation of the lifters and rocker arms, this guy compressed the lifters with a giant C-clamp before installing them. Trouble was, after it was all installed, he tried to re-prime the lifter by simply using the starter to crank over the engine (not allowing the motor to start), but oil never flowed into the head. It concerned me that you could damage the head with dry lifters in this process.
The FSM does warn you about allowing the lifter to lay on it's side unless its submerged in oil (to avoid air getting in), but doesn't mention compressing them before install. I haven't yet tried to assemble them, as I thought it might also be best to purge and prime the lifters to remove any oil that might be in them, since that oil could contain coolant from the blown head gasket.
Any thoughts?
Thanks!
The FSM mentions nothing about priming them, but when I watched a video (pretty good one actually) on YouTube, during the installation of the lifters and rocker arms, this guy compressed the lifters with a giant C-clamp before installing them. Trouble was, after it was all installed, he tried to re-prime the lifter by simply using the starter to crank over the engine (not allowing the motor to start), but oil never flowed into the head. It concerned me that you could damage the head with dry lifters in this process.
The FSM does warn you about allowing the lifter to lay on it's side unless its submerged in oil (to avoid air getting in), but doesn't mention compressing them before install. I haven't yet tried to assemble them, as I thought it might also be best to purge and prime the lifters to remove any oil that might be in them, since that oil could contain coolant from the blown head gasket.
Any thoughts?
Thanks!