[szyzygy]

Video is private :\

Originally Posted by fastfredracing

O.K. so I made up a little video today to debunk the myth that loosening the cam nut/bolt on 911 camshafts with an impact gun puts too much stress on the chains. I had a few old pitted cams laying around so I used them as guinea pigs.
I torqued up the big nut with the factory tools, then removed it with the impact gun. As you can see, I am holding the cam with only my hand muscles resisting the turning of the cam from the impact gun. It easily comes loose with out much too much force trying to turn the cam. I am quite sure that if my girly hands can resist this force, then the timing chains and sprockets are easily up to the task. I would never recommend tightening them this way.



So, how are you coming along so far?? Heads off yet?