[camman]

I have a puff of smoke on my RAV for 1 or 2 seconds after startup after sitting all night which usually means valve seals need to be changed.
There are tools to do this ON the vehicle without removing the head. I have just under 70,000 miles but the 12 year age hase probably finished them. Has anyone here changed out these puppies on vehicle useing compressed air to keep vlaves in place etc?
Thanks