Post what you find in the other thead. I honestly think we are just scratching the surface on how big this problem is.
This could be another "Profile Gasket" situation.
I am contempating going down to the local racer/machinist and having bolt heads drilled for safety wire so they can never come loose again. That should keep those bolts tight! It is used on raace cars and aircraft.
I am mostly scared of finding the gasket in bad shape and needing to be replaced. Which means, I will have to go rent an engine hoist, or go buy one.
For those wondering, safety wire is twisted wire that pulls the bolt tight by looping through a hole in multiple bolt heads or an anchor point. Basically each bolt pulls the other tight by way of this wire. If you want to try it, read a tutorial, if you do it wrong, you will actually pull the bolts loose. Trust me, I saw many trained guys do this on aircraft (which is why we have a second person double check). It is easy to do it backwards.
Like this:
