We told your Mechanic that all you had to do was pay shipping or bring it down and we would fix it which is within the guidelines of our warranty .Im not going to do anything if I cant see the motor.We build over 1000 motors and powerheads a year Yamaha/Merc/Johnrude .Our machines are the best you can buy and they are exact ,the dimond finish hone is computer controlled,Our ultrasonic cleaner for carbs and efi componets is medical grade .,it will clean a computer chip ! We invest in doing it right but sometimes things go wrong.I never said we were perfect just that we will fix them if they fail ........Mike