I was just coming to the end of my Triple SU conversion and all was going well. As the coolant was drained, I decided to go ahead and replace the distributor with a vacuum advance one and push on HT leads. While removing the old HT leads I loosed the head bolts to remove the HT lead sleeve bracket and found one loose, and it just spun. I pulled the bolt and it moved up a couple of inches so I believe I have a broken head stud. I managed to remove the head bolt by clamping the stud shaft with locking grips and ratcheting the bolt.
I am almost afraid to ask, but what is the way forward with this. Does the engine have to come out or is this something that can be worked on in place ?
The engine was running well before this with good compression so was not planning a rebuild. Any advice appreciated as I am a bit worried about this one.