Broken Thermostat Housing Bolt

[suttonschinook]

During the past week I've been slowly disassembling my new to me S52 to prepare for installing all new gaskets, with the exception of the headgasket.

Today I decided to finish taking everything remaining off and noticed one bolt for the thermostat housing was missing. After removing the other bolts and taking the cover off I saw it's not missing but snapped of even with the head! Any ideas on how to address this? Not really wanting to pull the head if I don't have to.

Besides this snafu the only other thing I am waiting on to start resealing is the crank holder tool. Any help or advice would be greatly appreciated!

Thanks! Evan

[rcsoundn1]

You can try an extractor drill set, though I never have luck with them. Or you will need to drill it out and tap it.

[suttonschinook]

You can try an extractor drill set, though I never have luck with them. Or you will need to drill it out and tap it.

Just looking at how small the bolt is I doubt an extractor set would work. Wondering if I should leave the drilling out to professionals or if I can accomplish it without to much trouble.