[KTL]

The JB Weld he's using is Loctite's version called Hysol 9340. Good stuff.

The engine wasn't leaking in all the places where the epoxy is applied. Is used as a protection against the potential for leaks. All those places on the case are where machining plugs are located (except the spot in the oil cooler location- that's a notoriously thin spot on the casting that frequently leaks) and the epoxy seals the plugs to prevent weeping.

The fun is just starting...... Cleaning and prep is one of the hardest parts IMO. Reassembly is pretty straightforward when you've got Wayne's rebuild book and the Bentley Manual +Bruce Anderson's 911 Performance Handbook as a backup

Whatever you do, don't cut corners on piston installation. Use a good ring compressor that uniformly compresses the rings all the way around so you can easily slide the piston into the cylinder. You want to lightly oil the rings, piston sides & skirts, and the cylinder, as well as the inner surface of the ring compressor. Then wipe out the excess oil once you've got the piston & cylinder installed & secured to the case with your PVC hold-downs.