New How To Remove Broken Bolt From Engine Head Pictures. The head of a bolt broke off of the bolt shaft on my engine block while i was replacing my water pump. If you want to remove a broken bolt without welding, center punch the broken bolt, then drill a pilot hole.
The tapered threads are at the business end of the tool.
This is when you have to slow down and come up with the best approach for how to get it out without further damaging the casting. This video shows clips from the process of removing these broken bolts. Would it need to be taken to a machine shop and if. There's a few ways to do this.