I'm trying to replace the two heat hose fittings that are on the water pump of of 54 Mercury. Of course one came off fairly easy but the other is a mother. My trusty PB blaster penetrating fluid has finally failed. I did put the heat gun 1300 F but short of taking a torch to heat it up I'm looking for any suggestions????

I've consider cutting it off and taking a extractor to it but thought best to ask first.

 Any suggestions are appreciated.

Thanks

Mario