Rough night last night.
I'm waiting to get my water pump fasteners re-plated before putting the new pump on, so I started thinking about what's next on the Mounty. I decided to start removing an exhaust manifold because I expected I'd need the torch and wouldn't want to put too much heat into the head after the valve cover and intake manifold gaskets are replaced. Unfortunately, the MAP torch and penetrant were not enough -- the first stud snapped right off. I'm not sure if I have the ambition to keep trying the other fasteners, or just leave things as they are and mess with the manifolds when the engine is out someday. The problem with that is there was already a noticeable exhaust leak coming from the right manifold and I don't think the missing nut will help close any gaps.
Not wanting to deal with the exhaust, I moved onto the lower intake manifold. After some busted knuckles, I got the heater hoses off and didn't have any trouble pulling the fuel rails. Then it came time to remove the intake manifold studs and it was a repeat of the exhaust manifold. I was able to slowly break loose the front two studs, but I could feel they weren't happy. One I was able to get out, but the other snapped off -- I wonder if the whole time it felt like the stud was turning, it was actually yielding. Then the rear stud broke off too. I wasn't able to get good enough access to try the bolt on the rear right corner (socket kept slipping off).
Am I missing something, or just unlucky? At this point, I'm almost thinking I just go and break all the fasteners so I can pull off the exhaust/intake manifolds and start welding nuts to what's left sticking out. That sounds like a very unpleasant time though haha.