[earossi]

Upon inspection I discovered that there is a small piece of metal missing off the trailing edge of one of blades on my 11 blade fan. Not sure how the damage occurred; but, I may have caused it when disassembling the alternator from the fan housing. I was able to clean up the broken area with a Dremel tool and have feathered out the break area so that there are no sharp corners that could act as stress risers. The damage is confined to about mid-span of the blade, on the trailing edge of the blade. And, the size of the dressed up area is about the size of half of a dime (i.e. a semi-circle that is about a half inch in diameter),

My question is whether the fan can be put back into service? And, is the balance of these fans sensitive to this loss of metal out of one blade? So, should I counter that by removing some material 180 degrees from the damaged blade? The car is a street car and the engine will seldom be revved to red line (~ 7000 rpm).

The fan, I believe, is aluminum and is fitted to an 87 3.2 motor.