I'm trying to change the Fan clutch in the Dodge Dakota, V6 auto 2wd. It has one nut that screws on to the water pump. I have been working on this all day and can't get the nut to budge. You can see where someone else has tried to remove it as well. Tonight my son (who is no little guy) came over and we had a 4' cheater bar on the wrench on the nut and a 1' cheater bar on the pump holding tool. That nut did not budge. I have put WD-40 then Acetone & ATF on there all day. I even took a the biggest hammer I have and hit the cheater bar on the nut with no results.
The only thing I haven'd done is put heat to it. I'm afraid if I put heat to the nut it will mess up the seals in the water pump and I'll have to change it as well. So my question is if I do put heat to it what are my chances of messing up the water pump? Any suggestions are welcome. Thanks