Scuff it up good, get all the oil off, clean it with brake cleaner, and go to work with the JB Weld. AWK08 likes Quicksteel, too. I've never used Quicksteel, (probably works great), but I do know that JB Weld does the job, provided you don't have a huge leak and prep the surface properly.
I had an '89 Banshee engine with the back half of the cases held together with JB Weld. It had blown a chain and had some pretty ugly damage. I rode it like that for months and never had an issue. Just remember that this is only a temporary fix...