The heat will not be affecting the fuselage structure the same around it's circumference. It is quite possible that the fuseslage is softening/extending/deforming on one side only which could cause the observed problem.

I have a glass-fuse Tucano that will deform under pressure of the tie-down bungee if I leave it in my trailer out in the Florida heat.

I vote with the others that say - Just go buy the correct parts.