Reciprocating Engine Overhaul Practice Test

When a stud is bent, the threads in the hole and the stud itself can be damaged or distorted. The goal of replacement is to restore proper thread engagement and the correct clamp load. Using a replacement that is one size larger gives you fresh, undamaged thread engagement after any necessary re-tapping, so the stud can bite into solid material and develop the intended clamping force. A smaller size would risk poor engagement or stripping, and a much larger size could not fit or align properly. So, one size larger is the practical choice to ensure a secure, properly seated joint.