l run in a tap to each hole before replacing a bolt to be sure the threads are clear, using my fingers without the handle. Then using the handle, I run it in and out as the aluminum is not forgiving. 15 ft pounds should be ok but is your torque wrench able to be set there??? ie is it the same one that you use on head bolts?? I got an inch pound wrench as a smaller tool is needed here. Enjoy WDY