derekmines

So my local mobile mechanic (who's also a good mate) and I fell foul of this same situation yesterday.

Removed 2 of the engine mount bolts no problem, third one seized solid.

Long breaker bar did nothing other than actually break the rubber bonding on the mount and we ended up with a snapped off bolt with about 5mm protruding from the aluminium.

loads of heat and molgrips was slowly helping us win, and after an hour we had about 8mm of the bolt protruding,
This was enough to secure a fancy stud extractor and carry on with the heat routine.

Unfortunately an hour later the stud snapped again, this time flush with the aluminium so we ended up having to drill and re-thread the hole.

After all that, the belt and water pump change went fine, sadly I now have to wait for a new engine mount before I can actually drive the car.... what a faff!