Loctite 221 is used quite extensively on threaded fittings for the Rotax (including reinstallation of parts removed when preparing the engine for installation). For those builders that have finished their engine install- where did you get Loctite 221? It does not appear to be as widely available as other Loctite formulations. I have seen some references to substituting 222 but in looking at the specs, they are not exactly the same.
Thanks
Jeff
Thanks
Jeff