Am I the Only Who Cheats During Maintenance?

[Ed in Maine]

I just replaced the four bladed fan on my Model A. I've had the new two bladed aluminum fan for several months. There was some noise coming from the front of the car but I couldn't tell if it was the four bladed fan or the generator. It was a good time to do the fan replacement job. I got the fan pulled from the water pump and mounted the new fan. It fit very closely but it went together except for the castle nut on the shaft. I tightened the nut as far as I dared, but didn't like the fit of the nut. I cheated, and took a hack saw and deepened the slot for the cotter pin. I almost felt myself looking around the shop to see if anyone was watching me! I even took the next smallest cotter pin to complete the installation. I hope I don't pay the price for lousy work. Am I the only one who occassionally has to do this?? By the way, the noise went away and the new fan looks great. Ed