Originally Posted by
ClydeClydeson
Whatever the manufacturer put on the threads, I guarantee it was not red Loctite. Maybe some other sort of red substance - anti seize or red grease, but red Loctite is meant to be permanent except for removal with high heat.
Agreed. You never know who might have worked on it from the factory to the buyer though but still pretty unlikely. There are also threadlocks that are applied and allowed to dry before installation (can't think of the name for them at the moment) and have more of a rubbery, chalky texture and may be red in color but not high strength. In any case, it's removed so just clean up the BB shell threads and install the new BB. This should have been a warranty fix but as the OP noted, it cost as much to take it to the shop plus time wasted but still better to protect yourself in case there is something else going on causing a rough BB that the shop can now say it was the OP's fault since it has been worked on. Hopefully it all works properly now.