Thomas;
I understand the niceties of torque sequence; but it would seem that is all out the window when the engine has been run about 6 hours, many cycles to full power, and a dozen or more temperature cycles to 200-210 F; all with the two large bolts loose. As far as I know nothing untoward has happened, but how can I be sure?
Al
Al,
didn't intend to step on your engineering prowess, you are waaaay ahead of me in that department!
Just was pointing out what (little) I remember from Engineering school.
In your case, the only acceptable (...for me) way to go is, to remove the redrive, loosen all bolts and tighten them according to the manual.
In a (race)car you might get away with an "emergency"-thighten-up, but it is your a** up in the air!!
Your engine was running well for a while now, so a complete tear-down seems excessive, but I believe wrong ( or none ...) torque-settings will show their ugly face in the long run. Better make sure everything is right and tight.
I understand that it is definitely NOT your fault, but your engine builders - you might believe these guys put a little more extra care into assembling an AC engine - manual on the job, step by step list to hook off items, after-assembly check list, etc.
In your case torques on bolts don't mean anything at this time. "Niceties of torque sequence" applies IF DONE (right) - obviously on your engine no one cared enough to check torque, let alone sequence.
Doesn't shine to well on a supposedly reputable shop....
Enough ranting, back lurking!
Thomas J.