I agree Doru, i should have mentioned that i also replaced coolant pipe , with stainless steel part. And new plugs, coils, and even tubes.
Oh yeah, and enough seals to feed a polar bear for a year!

Need some help guys just did my stem seals and now i have a misfire on 7, checked every and found i have no compression at all in cylinder 7 :dunno: .
could it just be that the lifters need to brake in. did both TDC with leak down test inlet stroke and outlet stroke just to be sure and same results about 10psi out of 80psi.

any ideas thanks....

I wonder if the problem might be with an intermediate lever spring out of position, as Doru mentioned in his initial post? I checked mine before putting valve cover on and had two out of place! I am not sure if that could cause rocker arm to slide off of ball stud and keep intake valve from closing properly? Doru or AGA might know.
Hope it works out for you.

Yeah I checked them they were fine I may take the cover off and have a look. But I'm 99% sure they where connected. I was also getting cam timing codes at the start with many misfires now it's just #7.

I should also mention there was no air escaping thought the throttle body or oil filler cap so I'm gessing it's the outlet valves that are open, i couldn't tell at the tailpipe.

Not sure how but it looks like a keeper poped out and also the retaining clip broke off on the rocker, this could have happened when I took it off originally not sure. This could have ended badly with a bent valve stem few. So if any one gets a misfire I suggest doing a leak down test before messing with plugs coils etc.

All back together running sweet "few" not sure how I snapped a rocker arm clip but lucky I caught it..

I need to tackle coolant crossover, & am very concerned about valvetronic solenoid relearn. can someone update the pics in this tread so they are visible? also any now tricks to Valvetronic solenoids to not have errors?

What browser are you using? Chrome and Firefox both have an extension that fixes photobucket issues.

tried both chrome and firefox. still not seeing any images