fletcherson
Well-Known Member
If it's the reverse type, there should be some space to get between the edge and the hole, between the threaded areas, depending on the brand. It's also tapered, so if you can get it to move, it should get easier to remove. A trick I learned is to use something as hard as the easy out, like another square easy out to make a chisel type tool to help. The tool will be harder than the bolt and will not get destroyed by the reminants of the broken easy out. Wear eye protection! That brittle steel will shatter and send pieces flying. I hold the chisel tool with vice grips to save my fingers from vibration or mis fired hammer strikes. Anyways, with patience and work, you should be able to free it because the bolt is softer, and it will eventually loosen up. I agree that heat will help because it will expand the cast iron, heat around the broken bolt, not right on it, then chip away to try to work that broken tool out, then try another tactic. The bolt will melt and blow out of cast, but it's a fine line. That's why I sugest letting a experienced person do it. How special is the manifold? Don't feel bad, I bet, truth be told, everyone who really works on machines has had the exact issue with a broken bolt at some point.Its the reverse thread type. I thought about blowing it out with a torch but that makes me a little nervous! I think that will be last resort. It's the bolt that holds the thermostat housing to the intake, so taking the intake off will not expose more of the bolt.