valve cleaning

replacement of valve stem seals and springs for mazdaspeed 6 I would have asked if anyone has experience with this? How many hours of work does it take approximately? I was thinking of cleaning the valves of deposits at the same time and wondering if it would have been a good idea to replace...

I'm doing this solo (unless anyone in the Durham NC area wants to hang out...), and without being able to watch the valves go up and down while someone else turns the crank it's really hard to tell if the valve is completely closed. Any pointers?

Hello, Car has about 112k miles and am thinking of cleaning the valves (better late than never). Couple question: (1) How difficult is this; i've seen a few videos on youtube but thought I'd ask; (2) Once I take the intake out, what should I change while i'm in there...I was thinking PCV...

The always affordable and dashingly handsome CorkSport Valve cleaning tool is now available! Yes I know you all think WTF CorkSport, why do I need this? It's you all be dirty dirty on the valves with your Mazdaspeeds that is why. Instead of the duct tape and jury rigged attachments we...