New engine build, comp cams hydraulic roller lifters (I think they are 8934 -16). Without the intake on I set the valves, put four liters of oil in (5 or 6 liter pan from 79 van) and spun the oil pump with a drill. I have at least three lifters that are dumping oil out the top, when I stop the drill the pushrods drop an eighth inch. If I take the pushrod back out and stick my finger in there when the drill is on the plunger comes up with pressure and drops a quarter inch when the oil pressure is off. The lifters are brand new, the engine has never run. When I was measuring pushrods I also had this problem, I called comp, they said pump them up in some oil.
Am I missing something?
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I don't know if it matters:
557 forged crank, H-beams, 10.5:1 Icon pistons, P-51 Heads
Lunati VDBF-292, Comp 1.72 rockers
5200 lb mud truck, c6