[s-cars] AAN Spark Plug Back-out

[David Forgie]

Scott:  I am not following your logic ("method in your madness") of your procedure:

"I use the same procedure many seasoned audi shops use,  torque all to 
22lb/ft.  Then go back 1 by 1 and loosen and retorque to  22lb/ft." 

(Note: I think the "lb/ft" should be lb ft, like Newton metres)

To me, backing the out the plug, manually, on purpose, kills the crush washer
and the when you go back in and retorque them there is no more crush washer
to provide what I thought is the required "tension" on  the threads, 
i.e. the crush washer acts a spring, pulling the upper side of the plug
threads against the lower side of the head threads.

What am I missing?

I am not being arguementative, I just don't understand why my thinking is 100%
the opposite of yours. 

Dave F.