On 09/04/2018 15:32, Graeme wrote:

Any tips for removing a housing that has been in place for many (25+)
years?Â* This particular engine is in a 68 Traveller, and the stub for
attaching the top hose has disintegrated, which does not help the water
circulation or cooling.

YouTube videos on changing the stat seem to gloss over removal of the
housing, which seems to weld itself into place!

Blowlamp ?. Alloy will expand faster than the cast iron block,
then tip some cold water on it. Repeat until the bond breaks.