On my '70 B-GT, the head was damaged at the thermostat. It looked
like someone had just started a bolt then bumped it into something as
a little divot of iron was missing. Unfortunately it cracked into the
edge of the thermostat seat. Read: leak potential. I fixed it with J-B
weld but instead of tapping the epoxy, I threaded a bolt wrapped with
Teflon plumber's tape into the hole. I packed the J-B weld in around
the bolt and let it cure. Once set, the bolt unscrewed right out leaving
a threaded hole! All I needed to do was true the top of the epoxy with
a flat file and the repair was complete! A little paint hid the repair.
http://www.geocities.com/btg80397/MGB-GT/ThermoststHousingDuringRepair.jpg
http://www.geocities.com/btg80397/MGB-GT/ThermostatHousingDamagedAtOutboardStud.jpg
...unfortunately, this second image was damaged in the upload but
there is enough of it there for you to see the "divot."
Best,
Rick
Mark and kathy LaPierre wrote:
> J-B Weld or epoxy should work. The former I know you can tap once it dries
> completely.
>
> Mark
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