Ford Escape 6 cylinder - 100,00 miles. want to flush and change the coolant. Cannot unscrew the engine block drain plug using a 14 mm allen hex bit. Afraid of damaging the block, maybe cracking it. I tried turning the plug with my 1/2" torque wrench up to 130 ft. lbs. torque and it would not budge. Am afraid to use more or to put a cheater on the torque wrench. If something goes wrong the engine becomes scrap. Anyone ever run into this? What's the solution?

 

There are flush kits available that install on the heater hose which will allow you to flush the system.
regards
rikard