Right there is a very loud tapping sound coming from the head, took the head off and a number of the hydraulic lifers seem broken inside you can push themdown with ya fingers, got new lifter put them in put head back on and same thing happened, got a number of lifters broken inside, seems like the valves aint opening where the lifters are breaking up, how do i fix this, can i unstick valves and they work ok after !!!
Are the lifters meant to be solid in their bores and not able to push them down with light finger pressure.
Could the springs be bust, i got a second C16XE head to salvage parts from, would just swap the heads but this one is stage 2 ported and polished with 6 stage valve seats cheers
any tips and solutions would be appreciated