I'm a bit puzzled. Whenever I fit new plugs to my wife's R-reg 414, I always use a torque wrench (because aluminium scares me). However, they always seem very loose to me when I come to remove them at the next service (yesterday No 1 would have come out with just the socket extension, no need for the T bar).
Any ideas why this should be? Should I try re-torquing them after a few miles? Is the 20 lb ft in Haynes too low?
Your collective wisdom appreciated.
Peter
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