When I built my RV-12 the torque specification on these bolts was 40 Nm (the Heavy Maintenance Manual edition 1, rev 3 section 71-00-00 page 20).
I see that this manual has been updated. Edition 2, rev. 0, September 2022 section 71-00-00 page 20 now says that the torque specification is 60 Nm AND Loctite 243 is be applied to the threads.
With 60 hours on my plane I have some questions on how to make this change.
1.) Can these four bolts be reused or should they be replaced?
2.) Can the engine continue to be supported by Engine Suspension Frame while the bolts are individually removed, Loctite 243 applied and then torqued to 60 Nm?
3.) Is just increasing the torque to 60Nm without applying the Loctite to avoid having to remove the bolts a good alternative?
4.) Anything else that I should be considering/doing?
Thanks.
Brett
Columbus, IN
