i am putting the engine back together and am adjusting the rockers. i know the lifters need to prime up w/ oil and then sit for a while or something like that. Well, my engine is completely drained of oil. Can i still use the same procedure to adjust the lifters? Open the exhaust valve, wiggle pushrod and turn bolt until there is no more slack, turn the bolt another 1/2 turn, then tighten the allen machine screw and be all set?