If you removed the nut to check to see if there was a lock washer (internal tooth), the lock washer should be replaced. Every time you torque a nut on these kind of lock washers, they loose some, if not all of their 'bite', which is why they should be replaced whenever they are removed.
Thanks for the tip Scott, and as I wrote in the post above, all the old lockwashers where replaced with new ones when we did this little operation.
Now on to the next task... it seems like every time we check off one task on the "last item list", two more task are added... but hopefully one day soon, that new Lyc IO360 will start hummin'....
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Regards Alf Olav Frog / Norway
First RV-7 completed, (bought partly finished from a US-builder) 305 hrs per July 2014, SOLD
Second -7 had first flight Feb 25th 2014. 220 hrs pr July 2019. Life is good!
but hopefully one day soon, that new Lyc IO360 will start hummin'.... 
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