The Yanmar 2GM20F has two bolts holding on the raw water pump - I managed to break one while reinstalling the pump after I took it off to replace the impeller.
These are long bolts, and I'm not sure what the best path forward is. I'd like to remove the 1/2 inch of threaded bolt out of the engine block, but it's in so deep (~4 inches), I'm not sure if this is really possible.
Can someone explain to me why these bolts are so long to begin with? Can I likely get away with creating new threads and using a wider, shorter bolt? Or a helicoil? What would you do?
Here's an image of the